v 092711
Model 2650A/2651 Series
3.3 GHz/8.5 GHz Spectrum Analyzer
USER MANUAL
i
Before Using t he Product
· Please note the following describe d on th e back pane l.
· For safe u se:
1) When abnormal sound, abnormal smell or smoke is found, stop using the
product and remove the battery and AC adapter.
2) Never handle this product with wet hands to prevent risks of electric shock, fire,
or damage.
3) Never use this product under lightning conditions to prevent risks of damage.
4) Never use any AC adapter other than specified, or it will cause damage.
Connect the power cable onl y to three-terminal outlet for protection from static
electricity, otherwise this product or a device under test may be damaged.
5) Never use any battery other than specified, or it may damage this product. Turn
off the power and disconnect the AC adapt er be fo re remov in g the bat ter y out o f
the battery compartment.
6) Be sure to charge the battery as specified in the instructions in this manual.
Moreover, an explosion, fire or smoke may occur if battery is handled
improperly.
Please read the notes for handling the battery.
ii
· Set clock function
The time information is set at Japan standard time. Set the year, month, day and
time when the 2650A series is used for the first time. (Refer to “24.4 Setting
the clock” for the details.)
· Quality assurance
Warranty
If the defect by our responsibility occurs within one year after delivered, it
shall be repaired free of charge. However, this warranty does not cover such
defect that :
1) is caused by a fire or natural disasters.
2) is caused by inappropriate handling such as dropping while moving the
unit delivered.
3) is caused by handling in contradiction to usage or precautions described
in the operating manual.
4) is caused by modification or misuse.
We will not be responsible for direct or indirect damage caused by use or
defect of this product.
Refer to the end of this manual for details.
Warm-up time
Warm up the product for at least ten minutes after turning on the power in
order to stabilize the internal circuit.
Prec aut i on s for st or ag e
1) Avoid direct sunlight or dust.
2) Store this unit in a place where temperature is between -20 °C to 60 °C,
humidity less than 60 °C/70 %RH and variations in temperature and
humidity are small.
After service
Please contact us without hesitation if you have any questions about this
product:
B&K PRECISION
22820 Savi Ranch Parkway
Yorba Linda CA, 92887
TEL. (714) 921 - 9095 FAX. (714) 921 - 6422
URL: http://www.bkprecision.com
iii
Contents
1. OUTLINE -------------------------------------------------------------------------------------- 1
1.1 PRODUCT OUTLINES -------------------------------------------------------------------------- 1
1.2 STANDARD ACCESSORIES ------------------------------------------------------------------- 2
1.3 OPTIONAL ACCESSORIES -------------------------------------------------------------------- 2
1.4 OVERVIEW OF ALL FOUR MODELS ---------------------------------------------------------- 3
2. SPECIFICATIONS -------------------------------------------------------------------------- 4
2.1 PERFORMANCE -------------------------------------------------------------------------------- 4
2.2 EXTERNAL VIEW ------------------------------------------------------------------------------- 7
3. EXPLANATION OF PANEL ------------------------------------------------------------- 8
4. EXPLANATION OF SCREEN --------------------------------------------------------- 11
5. FUNCTION MENU ------------------------------------------------------------------------ 12
5.1 LIST OF FUNCTION MENU ------------------------------------------------------------------ 12
5.2 MENU TREE ---------------------------------------------------------------------------------- 13
6. PREPARING FOR OPERATION ----------------------------------------------------- 19
6.1 STAND ---------------------------------------------------------------------------------------- 19
6.2 CONNECTION TO POWE R SUPPLY -------------------------------------------------------- 19
6.3 BATTERY CHARGE -------------------------------------------------------------------------- 20
6.4 INSTALLATION OF BATTERY --------------------------------------------------------------- 20
7. CENTER FREQUENCY <FREQ> ---------------------------------------------------- 21
7.1 SETTING WITH STEP KEYS ( [F1], [F2] ) ------------------------------------------------- 21
7.2 SETTING WITH ENCODER ------------------------------------------------------------------ 21
7.3 SETTING WITH NUMERIC KEY -------------------------------------------------------------- 22
7.4 ACCORDING TO MARKER POSITION ----------------------------------------------------- 23
8. FREQUENCY SPAN <S PAN> -------------------------------------------------------- 23
8.1 SWITCHING FREQUENCY BAND ----------------------------------------------------------- 24
9. REF EREN CE LEVEL < R EFER> ----------------------------------------------------- 25
9.1 SETTING OF REFERENCE LEVEL --------------------------------------------------------- 25
9.2 CHANGE OF UNIT OF AMPLITUDE AXIS -------------------------------------------------- 25
9.3 SETTING OF STEP SIZE OF REFERENCE LEVEL ---------------------------------------- 25
9.4 ON-OFF SETTING OF OFFSET ------------------------------------------------------------ 25
9.5 SETTING OF OFFSET LEVEL --------------------------------------------------------------- 25
9.6 SETTING OF INPUT IMPEDANCE ----------------------------------------------------------- 26
9.7 REFERENCE LEVEL SETTING RANGE FOR EACH UNIT ------------------------------- 26
9.8 RELATIONSHIP BETWEEN REFERENCE LEVEL AND ATT/AMP (AT DBM) ---------- 27
10. DISPLAY SCALE <SCALE> ------------------------------------------------------- 29
10.1 SETTIN G TH E FUNCTION KEY ------------------------------------------------------------- 29
11. RESOLUTION B ANDWI DT H <RBW> ------------------------------------------- 29
11.1 MANUAL MODE ---------------------------------------------------------------------------- 29
11.2 AUTO MODE -------------------------------------------------------------------------------- 30
11.3 ALL AUTO MODE -------------------------------------------------------------------------- 30
iv
12. VIDEO BANDWIDTH <VBW> ------------------------------------------------------ 30
12.1 MANUAL MODE ---------------------------------------------------------------------------- 30
12.2 AUTO MODE -------------------------------------------------------------------------------- 30
12.3 ALL AUTO MODE -------------------------------------------------------------------------- 31
13. SWEEP AXIS / DETECTION MODE <SWEEP> ------------------------------ 31
13.1 MANUAL MODE ---------------------------------------------------------------------------- 31
13.2 AUTO MODE -------------------------------------------------------------------------------- 31
13.3 ALL AUTO MODE -------------------------------------------------------------------------- 31
13.4 SETTING OF DETECTION MODE ---------------------------------------------------------- 31
13.5 SETTING OF TRIGGER SOURCE ---------------------------------------------------------- 32
14. AUTO TUNING <AUTO TUNE> --------------------------------------------------- 32
15. HOLD / RUN <HOLD/RUN> -------------------------------------------------------- 32
16. CALCULATION FUNCTION <CALC> ------------------------------------------- 33
16.1 NORMAL MODE ---------------------------------------------------------------------------- 33
16.2 MAX HOLD MODE ------------------------------------------------------------------------- 33
16.3 MIN HOLD MODE -------------------------------------------------------------------------- 33
16.4 AVERAGE MODE -------------------------------------------------------------------------- 34
16.5 OVERWRITE MODE ---------------------------------------------------------------------- 34
16.6 SPURIOUS FREE MODE (2658A ONLY) ---------------------------------------------- 34
17. MARKER & PEAK SEARCH <MKR> ------------------------------------------- 35
17.1 MOVEMENT AND BASIC FUNCTION OF MARKER --------------------------------------- 36
17.2 NORMAL PEAK SEARCH ------------------------------------------------------------------- 36
17.3 ZONE PEAK SEARCH ----------------------------------------------------------------------- 36
17.4 CHANGE UNIT O F MARKER LEVEL ------------------------------------------------------- 37
18. SAVE / LOAD <SAVE/LOAD> ---------------------------------------------------- 37
18.1 SELECTION OF STORAGE DEVICE -------------------------------------------------------- 38
18.2 SAVE FUNCTION ---------------------------------------------------------------------------- 39
18.3 ABOUT FILE NAME -------------------------------------------------------------------------- 39
18.4 LOAD FUNCTION ---------------------------------------------------------------------------- 40
18.5 DELETE FUNCTION ------------------------------------------------------------------------- 41
18.6 PRESETTING (INITIALIZATION) ------------------------------------------------------------ 41
19. MEASURING FUNCTI ON <MEAS> ---------------------------------------------- 42
19.1 CHANNEL POWER MEASUREMNT <CH POWER> ------------------------------------ 42
19.2 ADJACENT CHANNEL LEAKAGE POWER MEASUREMENT <ACP> ------------------ 43
19.3 OCCUPIED BANDWIDTH MEASUREMENT <OBW> ------------------------------------- 45
19.4 ELECTRIC FIELD STRENGTH MEASUREMENT <E/F ANT> --------------------------- 45
19.5 MAGNETIC FIELD STRENGTH MEASUREMENT <M/F PROBE> --------------------- 49
19.6 FREQUENCY COUNTER <FREQ COUNT> --------------------------------------------- 51
20. EMI TEST (2651) ---------------------------------------------------------------------- 51
20.1 ADDITIONAL FUNCTION FOR EMI TEST ------------------------------------------------- 51
20.2 EMI TEST ------------------------------------------------------------------------------------ 52
21. SCREEN CONTROL <DSP L> ----------------------------------------------------- 54
21.1 SETTING SCREEN DISPLAY COLOR ------------------------------------------------------ 55
21.2 ON/OFF SWITCHING OF LCD BACKLIGHT --------------------------------------------- 55
21.3 ADJUSTING BRIGHTNESS OF LCD BACKLIGHT ----------------------------------------- 55
v
22. TRACKING GENER ATOR MODE (2652A) ------------------------------------ 55
22.1 SPECIFICATION OF T.G. FUNCTION ------------------------------------------------------ 55
22.2 DESCRIPTION OF I/O CONNECTOR------------------------------------------------------- 56
22.3 ON/OFF SWITCHING OF T.G. FUNCTION ----------------------------------------------- 56
22.4 NORMALIZING FUNCTION ------------------------------------------------------------------ 57
23. STORAGE/PRINT SCREEN IMAGE <COPY> -------------------------------- 58
23.1 SELECTION OF IMAGE AREA -------------------------------------------------------------- 58
23.2 PRINT ON PRINTER ------------------------------------------------------------------------- 58
23.3 STORAGE INTO USB MEMORY ----------------------------------------------------------- 58
23.4 TRANSFERRING INTERNAL DATA TO USB MEMORY IN LUMP SUM ----------------- 59
23.5 USB PRINTER (OPTION) ------------------------------------------------------------------- 59
23.6 USB MEMORY ------------------------------------------------------------------------------- 60
24. UTILITY FUNCTION <UTIL> ------------------------------------------------------- 61
24.1 LABEL FUNCTION --------------------------------------------------------------------------- 61
24.2 MENU OFF ----------------------------------------------------------------------------------- 62
24.3 BUZZER SETTING --------------------------------------------------------------------------- 62
24.4 SETTIN G TH E CLOCK ----------------------------------------------------------------------- 62
25. USB DEVICE FUNCTIO N ----------------------------------------------------------- 64
25.1 OUTLINE -------------------------------------------------------------------------------------- 64
25.2 HOW TO CONNECT ------------------------------------------------------------------------- 64
25.3 INSTALLATION OF DRIVER ----------------------------------------------------------------- 64
25.4 SAMPLE PROGRAM ------------------------------------------------------------------------- 64
25.5 EXPLANATION OF COMMAND -------------------------------------------------------------- 65
25.6 INPUT OF FREQUENCY --------------------------------------------------------------------- 74
25.7 TRANSFER OF SPECTRUM DATA --------------------------------------------------------- 74
25.8 WRITING OF ORIGINAL COMPENSATION DATA ----------------------------------------- 75
26. OPTION ---------------------------------------------------------------------------------- 77
27. BASIC PE RF ORMANCE TEST (2650A/2651/2652A/2658A) ------------ 78
27.1 FREQUENCY CHARACTERISTICS --------------------------------------------------------- 78
27.2 ACCURACY OF REFERENCE LEVEL ------------------------------------------------------ 79
27.3 DISPLAY ACCURACY OF CENTER FREQUENCY ---------------------------------------- 79
27.4 DISPLAY ACCURACY OF FREQUENCY SPAN -------------------------------------------- 80
27.5 LINEARITY OF AMPLITUDE AXIS ---------------------------------------------------------- 80
1
1. Outline
1.1 Product outlines
The 2650A series are authentic spectrum analyzers in a compact and lightweight form factor providing
performance and functions c omparable to lar ge-size bench type instruments.
The features are as follows.
1) Compact and lightweight 1.8 kg.
The dimensions are 162(W)×71(H)×265(D) mm, and the weight is only 1.8 kg including the battery, making the
instrument very conve nient f or field use.
2) Large color TFT display
5.7 inches, 640×480 color LCD
3) Four hours battery operation
The included Lithium-ion battery, when fully charged, can provide power for up to four hours of operation with the
backlight turned off. And about 3 ½ hours with the backlight set to the minimum level.
4) USB host adapter
USB host port can be used with removable storage USB flash drives. The screen image is stored as BMP format, and
the spectrum and the setting parameters are stored as CSV format. The port conforms to USB 1.1 standards and is
backwards compatible with USB 2.0 devices.
5) USB device for PC connectivity
USB interface with transfer rates up to 12 Mbps maximum (conform to USB 1.1 standards).
6) Accurate frequency measurement by PLL synthesizer
The center frequency is accurately set by PLL (Phase Locked Loop) synthesizer. Moreover, the frequency counter
(factory option) enables more accurate measurements of the frequency of a signal.
7) Average noise level -127 dBm
The low average noise level of -127 dBm @ 1 GHz provides a wide dynamic range.
8) 100 dB display dynamic range
Wide dynamic range display with a display scale of 100 dB/10div (at 10 dB/div) in the amplitude axis.
9) Easy operation with AUTO mode
● Auto range operation: RBW, VBW and sweep time are automatically selected based on the frequency span.
● Auto tuning operation: The center frequency is adjusted to the maximum level within full span, and the optimum
RBW, VBW and sweep time are chosen.
2
10) Abundant functions
● Measuring functions : Channel power, Adjacent channel power, Occupied bandwidth, Electric field
strength, Magnetic field strength and Frequency measurement.
● Calculation functions : Max hold, Min hold, Averaging, Over write
● Marker measurement and peak search function
● Save/Load function
● Hard copy with printer
11) PC Software
The included PC software controls all four models of the 2650A/2651 series via PC. The software emulates the front panel keys
and supports transfer of 1001 point trace data from the analyzer to the PC. Screen images can be stored in BMP format and the
spectrum data in CSV format (stores frequency and level).
12) Options
There are many options available, such as dipole antennas, magnetic field probes and USB printer
1.2 Standard accessories
1. AC adaptor MA400
2. Carrying case LC2650A
3. Accessory pouch
4. User manual
5. PC software and USB cable
6. Lithium Ion battery MB400
1.3 Optional accessories
1. Dipole antennas M401, M402, M403, M404, M405, M406
2. Magnetic field probe PR 26M with a dedicated double shielded coaxial cable
3. Printer PT2650A with AC adaptor, 4pcs of AA batteries, one roll paper
4. Roll paper PX2650A for PT2650A printer (with 10 rolls)
3
1.4 Overview of all four mode ls
Model
Contents
2650A
50 kHz to 3.3 GHz
Applications: Cellular phone, 2.4 GHz wireless LAN, 2.5 GHz WiMAX, RF-ID,
Broadcasting
2658A
50 kHz to 8.5 GHz
Covering most of the wireless communication frequency spectrum
Applications: 5 GHz wireless LAN, 3.5/5.8 GHz WiMAX, Maintenance of wireless base
station
2652A
50 kHz to 3.3 GHz
With 5 MHz to 3.3 GHz tracking generator
Applications: Frequency characteristics measurement of electronic component/circuit and
return loss measurement
2651
50 kHz to 3.3 GHz
For EMI test
Applications: Radiated and conducted emission measurement
4
2. Specifications
2.1 Performance
Frequency section
2650A, 2652A, 2651 2658A
Frequency range
50 kHz to 3.3 GHz
50 kHz to 8.5 GHz
―――
Frequency
range
Frequency
band
Harmonic
order
50 k to 3.5
GHz
Base band
1
3.3 G to 6.3
GHz
Band 1-
1
6.1 G to 8.5
GHz
Band 1+
1
Center frequency
Setting
resolution
20 kHz
Allows rotary encoder, num eric key and function key
Accuracy
within ± (30+20T) kHz±1 dot
@frequency span: 200 kHz to 10 MHz,
RBW 3 kHz, 23±5°C
within ± (60+300T) kHz±1dot
@frequency span: 20 MHz to 3.3 GHz,
RBW 100 kHz、23±5°C
T: sweep time (s)
within ±(30+20T) kHz ± 1 dot
@frequency span: 200 kHz to 10 MHz,
RBW 3 kHz, 23±5°C
within ± (60＋300T) kHz±1dot
@frequency span: 20 MHz to 8.5 GHz,
RBW 100 kHz, 23±5°C
T: sweep time (s)
RBW
frequency
error
within ±4 kHz @ 3 kHz, 10 kHz, 30 kHz
within 20% of RBW @ RBW: 100 kHz, 300 kHz
within 10% of RBW @ RBW: 1 MHz, 3 MHz
Frequency span
Setting range
0 Hz (zero span),
200 kHz to 2 GHz (1-2-5 step) and
3.3 GHz (full span)
0 Hz (zero span),
200 kHz to 5 GHz (1-2-5 step) and
8.5 GHz (full span)
Accuracy
within ±3% ±1dot
@ sweep time of 0.3s, 23±5 °C
Display resolution
# of points per trace
501dots on LCD screen, 1001dots r eadout via PC
(501 dots are visible on the dis play, 1001 dots of trace data are captured internally and can be
transferred to a PC via USB device interface.)
Resolution bandwidth
3 dB bandwidth (6 dB for 2651 @ 9 kHz, 120 kHz)
Setting range
3 kHz to 3 MHz (1-3 step) an d AUTO
(2651: 3 kHz, 9 kHz, 30 kHz, 120 kHz, 300 kHz, 1 MHz, 3 MHz)
Accuracy
±20%
Selectivity
1:12 (typical, 3 dB : 60 dB)
Video bandwidth
100 Hz to 1 MHz (1-3 step) and AUTO
SSB phase noise
-90 dBc/Hz (typical)
@100 kHz offset, RBW : 3 kHz, VBW : 100 Hz, sweep time: 1 s
Spurious response
less than -60 dBc
Harmonics
less than -40 dBc @
≧
100 MHz
Ｔ：掃引時間
5
Amplitude section
2650A, 2652A, 2651
2658A
Reference level
Setting range
+10 to -60 dBm (1dB step)
Accuracy
within ± 0.8 dB ± 1 dot
@ center frequency : 100 MHz, RBW : 3 MHz, VBW : 1 MHz, REF : -15 dBm, 23±5 °C
Unit
dBm,
dBV, dBmV, dBμV, dBμV/m, dBμA/m
(dBμV/m and dBμA/m are used for measurement functions)
Average noise level
-127 dBm (typical) @ CF : 1 GHz, RBW : 3 kHz, VBW : 100 Hz, Ref. level < - 40dBm ( pream p
automatically ON)
Frequency
characteristics
within ±2.0 dB ±1dot @50 kHz to 100 MHz
within ±1.0 dB ±1dot @ 100 MHz to 3.3 GHz
within ±2.0 dB ±1dot @50 kHz to 100 MHz
within ±1.0 dB ±1dot @100 MHz to 8.5 GHz
Input impedance
50 Ω
Input VSWR
less than 2.0
Input attenuator
Operating
range
0 to 25 dB (1 dB step), coupled with reference level
Switching
error
±0.6 dB @100 MHz
RBW switching error
±0.6 dB
Display resolution
(vertical)
381 dots/10div
Display
scale
Scale
10 dB/div, 5 dB/div, 2 dB/div
Accuracy
±(0.2 dB+1dot)/2 dB ±(0.4 dB+1dot)/5 dB
±(0.8 dB+1dot)/10 dB ±(1.8 dB+1dot)/83 dB
Input damage level
+27 dBm (CW average power), 25 VDC
Sweep section
2650A, 2652A, 2651
2658A
Sweep time
Setting range
10 ms to 30 s and AUTO
@frequency span : 0 to 2 GHz
30 ms to 30 s and AUTO
@frequency span : full span
1-3 step
10 ms to 30 s and AUTO
@frequency span : 0 to 2 GHz
30 ms to 30 s and AUTO
@frequency span : 5 GHz, full span
1-3 step
Accuracy
Within ±0.1 %±1dot
@frequency span : 0 to 2GHz
Within ±0.1 %±1dot
@frequency span : 0 to 5GHz
within ±1.5 %±1dot @ full span
within ±2.5 %±1dot @ full span
Trigger
Trigger m ode
AUTO (Available only for zero span)
Trigger source
Internal and External
6
External trigger
Input voltage range
Frequency range
Input coupling
Trigger level
Input RC
Input damage level
Input connector
1 to 10 Vp-p
DC to 5 MHz
DC coupling
approx. 0.56 V(fix)
approx. 10 kΩ / less than 15 pF
±50 V(DC+AC peak)
SMA(J)
Detection mode
Positive peak, Negative peak, Sample
( QP and AV for model 2651 only.)
Function
2650A, 2652A, 2658A, 2651 common
Marker measurement
NORM：displays frequency (8digits max) and level (4digits max) at marker point.
DELTA
：
displays frequency difference and level difference between two markers.
Peak search function
Searches for peak level with all of 10 div (NORM mode) or within ZONE specified
(ZONE mode) and displays frequency and level at peak level, and moreover NEXT peak at
NORM mode.
Calculation function
NORM, MAX HOLD, MIN HOLD, AVERAGE, OVER WRITE
Number of sweeps is 2 to 1024 (pow er of 2 ) an d infinite.
Measuring function
Channel power, Adjacent channel power, Occupied bandwidth, Electric field strength
(needs optional dipole antenna), Magnetic field strength (needs optional magnetic field
probe) and Frequency counter
Auto tuning
When pressing AUTO TUNE key, the spectrum of maximum level within full span is
adjusted to center, and reference level, RBW, VBW and sweep time are set to optimum
parameters.
Save/
Load
Save
Saves 200 spectrums and 200 setting parameters
Load
Loads one spectrum and one setting parameter
General
2650A, 2652A, 2658A, 2651 common
Input connector
N(J) connector
USB Communication
Protocol
USB version 1.1 (will also work with USB 2.0 devices)
Device Connector
B plug
Transfer rate
12 Mbps
Hard copy
USB printer (option) connected to A plug (host) enables hard copy of screen.
host connector
A plug
Display
Display
5.7 inches and color LCD
Backlight
LED backlight
Number of dots
640(H) x 480(V) dots
Power supply
Dedicated
AC adaptor
Input : 100 to 240 VAC
Output : 9 VDC/2.6 A
Lithium-ion battery
Charge function
Remainder indication
MB400 : 7.4 V/5000 mAh Li-Ion battery
Capable of charging during pow er-off.
Indicates 4 conditions with two colors LED (red and green).
5 level indicator
7
Other
2650A, 2652A, 2658A, 2651 common
Operating temperature
0 to 50° C (guaranteed at 23±10 °C, without soft carrying case)
Operating humidi ty
less than 40 °C/80 %RH
(guaranteed at less than 33 °C/70 %RH, w ithout soft carrying case)
Storage temperature
-20 to 60 °C, less than 60 °C/70 %RH
Dimensions
162(W) x 71(H) x 265(D) mm , 6.38 (W) x 2.80 (H) x 10.43 (D) inch
(excluding projections, protection bum per and stand)
Weight
approx. 1.8 kg or 4 lbs (including battery)
* Refer to section 22) Tracking Generator Mode for the spec ifications of the trac king gener ator, mod el 2652A.
2.2 External view
* B&K Precision reserves the right to make changes in design, specification and other information without prior notice.
[Unit : mm]
8
3. Explanation of Panel
1) TFT display
This is a large liquid crystal display with 640 (H) x 480 (V) dots. It simultaneously displays spectrum (10div x
10 div), various setting parameters and measured values.
2) Function key (F1 to F6)
The function can change according to the operation key.
3) Center frequency key
9
The center frequency is set with this key. The setting range is 0 to 3.3 GHz (for 2650A, 2652A, and 2651), and
0 to 8.5 GHz (for 2658A). The setting resolution is 20 kHz.
4) Frequency span key
The frequency span is set with this key.
For 2650A, 2652A, and 2651, it is set in the range from 200 kHz to 2 GHz, ZERO SPAN or FULL SPAN (3.3
GHz). For 2658A, it is set in the range from 200 kHz to 5 GHz, ZERO SPAN or FULL SPAN (8.5 GHz).
5) Reference level key
The reference level is set with this key. It can be set in the range from +10 dBm to –60 dBm by 1 dB step.
6) Resolution bandwidth key
The resolution bandwidth is set with this key. It can be set in the range from 3 kHz to 3 MHz and to AUTO.
7) Video bandwidth key
The video bandwidth is set with this key. It can be set in the range from 100 Hz to 1 MHz and to AUTO.
8) AUTO tuning key
When pushing this key, the spectrum with the maximum level is searched within full span (3.3 GHz @
2650A/2652A/2651 and 8.5 GHz @ 2658A), and then it is adjusted to the center of the screen, and the
optimum setting parameters are set. In the case when in zero span, full span, input signal level lower than –40
dBm and input frequency lower than 50 MHz, this function will not work correctly.
9) Measuring function key
Available for Channel power, Adjacent channel leakage power, Occupied frequency bandwidth, Electric field
strength, and Magnetic field strength measurement.
10) Calculation function key
Available for Max hold, Min hold, Average and Over write.
11) Display scale key
The display scale of amplitude axis can be selected as 2 dB/div, 5 dB/div or 10 dB/div with this key.
12) Sweep key
The sweep time can be set in the range from 10 ms to 30 s or AUTO. This key can also select the detection
mode.
13) Hold/Run key
Used to hold or run measurements.
10
14) Marker & Peak search key
This key is used for setting marker or peak search.
15) Save/Load k ey
Used for saving or loading a spectrum or settings parameters.
16) Copy key
This key allows the screen image to be printed on USB printer (option) or stored in USB memory.
17) UTIL key
Used for setting label entry, clock, and buzzer.
18) Display control key
Used for setting color, backlight ON/OFF or brightness of backlight.
19) Rotary encoder
This is used for adjusting settings and parameters.
20) Power switch
This is for power ON or OFF.
21) Input connector
N(J) connector
22) Indicator for charging condition
Two color LED indicates the charging conditions of battery.
23) Input connector for DC power source
Connect AC adaptor MA400.
24) USB A plug
For connecting USB printer (option) or USB memory.
25) USB B plug
For interfacing with a PC
11
4. Explanation of Screen
Function Menu
UNCAL
**UNCAL Display
Remaining Battery
Display Spectrum Display
10div x 10 div
Active Area Display
Center frequency, Frequency span,
Resolution bandwidth, Video bandwidth
Reference level, Input attenuator,
Display scale
Sweep time,
Detection mode
Calculation function display
Measuring function display
Operating Information display
Loaded spectrum information display
* This is also used as a display for set values
when the measuring function is used.
**UNCAL is displayed when a normal measurement cannot be done due to sweep rate being too fast. In such
cases, slowing down the sweep rate will change this indicator.
Measured Values display
Sweep Axis Setting
Values Display
Amplitude Axis Setting Values Display
Frequency Axis Setting Values Display
Upper: Label Display
Lower: Clock Display
12
5. Function Menu
5.1 List of Fu nction Menu
The function menu is shown in the table below. For descriptions of each function, see their respective page. For the
sequence of selection for the function menu, refer to “5.2 Menu tree”.
**1 2651 only **2 2658A only **3 2652A only
Function menu
Key Sequence
Page
A
ACP OFFSET MEAS → (F2)→ F2 42
ACP
MEAS → F2
41
ACP WIDTH
MEAS → (F2) → F3
42
ANT
MEAS → (F4)→ F1
44
AVG
CALC → F4
32
B
BACK LT
DSPL → F2
53
BACK SPACE
FREQ → F6 → F5
21
BAND CNTR
MEAS → (F1) → (F1)
→ F2
41
BAND WIDTH
MEAS → (F1) → (F1)
→
F3
41
BRIGHT DSPL → F3 53
BUZZER
UTIL → F3
59
C
CENTER FREQ ←
FREQ → F1
20
CENTER FREQ →
FREQ → F2
20
CH POWER MEAS → F1 41
CLEAR
FREQ → F6 → F4
21
CLOCK CONFIG
UTIL → F4
59
COLOR DSPL → F1 53
CONV
MKR → F6
33
D
DELETE
SAVE/LOAD → F3
36
DEVICE MEM
SAVE/LOAD → F4
36
DET
SWEEP → F4
29
DISP CLEAR
SAVE/LOAD → F2 →
F5
38
E
E/F ANT
MEAS → F4
43
EncST
FREQ → F4
20
EMI-C **1 SAVE/LOAD → F6 →
F2 50
EMI-R **1
SAVE/LOAD → F6 →
F3
50
F
FREQ COUNT
MEAS → F6
49
I
IMP
REFER → F6
25
K
KeyST
FREQ → F3
20
L
LABEL
UTIL → F1
58
LOAD
SAVE/LOAD → F2
38
M
M/F PROBE
MEAS → F5
47
MAX HLD
CALC → F2
31
MEAS OFF
MEAS → (F1~5) → F6
41
MIN HLD
CALC → F3
31
MARKER DELTA MKR → F2 33
MARKER
NORMAL
MKR → F1
33
Function menu
Key Sequence
Page
M
MODE
MEAS → (F1 → F3)
→ F1
41 to 43
N
NEXT PEAK
MKR → (F4) → F2
34
NORMAL
CALC → F1
31
NORMAL **1
SAVE/LOAD → F6 →
F1
50
O
OBW
MEAS → F3
42
OFSdB
REFER → F5
24
OFS STEP
REFER → F3
24
OVR WR CALC → F5 32
P
PEAK SEACH MKR → (F5)→ F1 34
PEAK SERCH
NORM
MKR → F4
34
PEAK SERCH
ZONE
MKR → F5
34
PRE SET SAVE/LOAD → F6 36
PROBE
MEAS → (F5) → F1
48
R
RATIO
MEAS → (F3) → F2
43
RBW ALL AUTO
RBW → F3
28
RBW AUTO
RBW → F2
28
RBW MANUAL
RBW → F1
27
REFERENCE
CENTER MEAS → (F2) → F4 42
REFERENCE
WIDTH
MEAS → (F2) → F1→
F5
42
S
SAVE
SAVE/LOAD → F1
36
SCALE 5dB
SCALE → F3
27
SET MKR FREQ → F5 20
SPR. FR **2
CALC → F6
32
SWEEP AUTO
SWEEP → F2
29
SWEEP MANUAL
SWEEP → F1
29
T
T.G. MODE **3
SWEEP → F6
55
TRIG
SWEEP → F5
30
Ten Key MODE FREQ → F6 20
U
UNIT REFER → F1 → 4 24
V
VBW ALL AUTO
VBW → F3
29
VBW AUTO
VBW → F2
28
VBW MANUAL
VBW → F1
28
Z
ZONE CENTER
MKR → (F5) → F1
35
ZONE WIDTH MKR → (F5) → F2 35
13
5.2 Menu Tree
The following is the sequence of selection for the function menu. The function menu corresponds to the function key
of F1 to F6.
“Function menu”
* Refer to “8. Frequency Span” for details.
NORMAL
SPAN
FULL
SPAN
ZERO
SPAN
SPAN
50 MHz
1 GHz 1 MHz
SPAN
: Set the frequency span
* Refer to “9. Reference Level” for details.
UNIT
dBm
RL STEP
1dB
OFS STEP
1dB
REFER
OFFSET
OFF
OFS dB
0dB
IMP
50Ω
: Set the reference level
ANT
E/F M/F
PROBE
FREQ
COUNT
F1
CH POWER
ACP
OBW
F2 F3 F4 F5 F6
: Set the center frequency
CENTER
FREQ
KeyStep
100 MHz
EncStep
10 MHz
SET
MKR
Ten Key
MODE
GHz
MHz
CLEAR
“.”
BACK
SPACE
RETURN
* Refer to “7. Center Frequency” for details.
FREQ
14
* T.G. MODE is only for 2658A.
* Refer to “13. Sweep Axis / Detection Mode” for details.
SWEEP TIME
AUTO
MANUAL ALL AUTO
SWEEP
: Set the sweep time
T.G.
ON
NORM
ON
DET
SMPL
TRG
INT
T.G.
MODE
* Refer to “12. Video Bandwidth” for details.
VBW
AUTO
MANUAL ALL AUTO
VBW
: Set the VBW
* Refer to “11. Resolution Bandwidth” for details.
RBW
AUTO
MANUAL ALL AUTO
RBW
: Set the RBW
* Refer to “10. Display scale” for details.
SCALE
5dB/ 10dB/ 2dB/
SCALE
: Set the display scale
15
* “SPR. FR” is only for 2658A.
* Refer to “16. Calculatio n Function” for details.
NORMAL
MAX HLD
256
MIN HLD
256
CALC
AVG
256
OVR WR
256
SPR. FR
OFF
: Set the number
* Refer to “17. Marker & Peak Search” for details.
MKR
CONV
dBm → W
: Move the marker (NORM mode)
PEAK
SEARCH
NEXT
PEAK
RETURN
RETURN
MARKER
DELTA NORMAL OFF
PEAK SEARCH
NORMAL ZONE
ZONE
CENTER WIDTH
: Move the marker (NORM mode)
: Set the zone center frequency (ZONE mode)
F4: Peak Search
F5: Zone marker
16
* Refer to “18. Save / Load” for details .
SAVE/LOAD
PRE
SET
RETURN
RETURN
MODE SELECT
LOAD
SAVE DELETE
DEVICE
MEM USB
: Set the address to store the spectrum or the parameter
: Set the address to call the spectrum or the parameter
OBJECT
PARAM
SPECT
BOTH
SAVE
EXECUTE
Save menu
Load menu
File Search Step
10
1
100
LOAD
EXECUTE
DISP
CLEAR
RETURN
Delete menu
File Search Step
10
1 100
DELETE
EXECUTE
: Set the address to eliminate the trace or parameter
For 2651
Main menu
NORMAL
EMI - C
PRESET
EMI - R
Preset menu for 2651
17
* Refer to “19. Mea suring F unctio n” f or details
MEAS
MEAS
OFF
MEAS
OFF
MEAS
OFF
CH POWER
ACP
OBW
E/F
ANT
M/F
PROBE
Freq
COUNT
MODE
BAND
BAND
CENTER
WIDTH
ADJ CH
OFFSET WIDTH
REFERENCE
CENTER WIDTH
MODE
BAND
MEAS
OFF
MODE
N%
RATIO %
99.5%
Enc Step
1%
ANT
M401
PROBE
CP-2S
MEAS
OFF
Input the probe ID (first time only) *Refer to “19.5 Magnetic field strength measurement” for details.
: Set the parameter
: Set the parameter
: Set the parameter
18
* Refer to “24. Utility Function” for de tails
UTIL
LABEL
MENU
OFF
BUZZER
ALARM
CLOCK
CONFIG
012
abc ABC
@%*
YEAR
08
MONTH
JUN
DATE
30
: Select the character
: Select the numeric value
BACK SP
←
ENTER
HOUR
23
MIN
50
ENTER
→
* Refer to “23. Storage/Print Screen Image” for details
COPY
AREA
WHOLE
PRINT
EXECUTE
Bmp->USB
COPY
MEM->USB
EXECUTE
* Refer to “21. Screen Control” for details
DSPL
COLOR
COLOR1
BACK LT
ON
BRIGHT
80
19
6. Preparing for Operation
6.1 Stand
Utilize the stand on the back to use the screen in an easier-to-see angle on the desk.
6.2 Connection to power supply
The AC adapter MA400 is used to power the instrument and for charging the MB400 battery. (Charging starts
automatically if the AC adapter is connected and unit is power-off.) Connect the adapter as in the figure below and
connect the AC plug to the power line (100-240 VAC, 50/60 Hz). For static electricity protection, ground the unit
by connecting the three cores if possible. Not grounding the unit can damage the unit and/or device being
measured. Do not use an AC adapter other than the MA400 supplied with the unit. Using an AC adapter other
than the MA400 may cause damage to the unit.
The battery indicator is divided into five levels and is displayed on the screen. When the mark of the battery
remainder displays , the buzzer will sound even if buzzer is OFF under settings, and the power will turn off
within a few minutes. Ensure to protect any data or measurements promptly by saving into memory to prevent
data lost if the unit shuts down.
Battery full charge time: approx. 4 hours
Battery operating time: 4 hours maximum
(with backlight set to minimum)
*Tested at normal temperature with initial setting
parameters.
Connect to 100 to 240 VAC, 50/60 Hz
Please make sure to connect to ground.
20
6.3 Battery Charge
When the unit is powered off and connected to AC adaptor MA400, the battery will be charged. The charging
conditions are indicated by two colors LED , and they correspond to the table below.
Charging condition Color of LED Good usage of battery
On Charge
Red
Completion of Charge
Green
Remove the battery when unit is connected to the AC adaptor.
Otherwise, battery life will be shortened.
No battery
Green
Abnormal
Blinking R ed
※LED is turned off at power-on.
The “abnormal” condition means that the charging time is more than the time expected, or the battery voltage
is too high.
Note: The battery charges only when the unit is turned off (and the AC adapter connected). It is not possible to
charge the batteries while the unit is turned on. Please charge batteries with ambient temperature
in the range of 0 ºC to 40 ºC.
6.4 Installation of Battery
To install the battery, please turn off the power and unplug the AC adaptor if in use. Remove the battery cover on
the back of the unit by first pressing down with light pressure, then slide towards the direction of the arrow as
shown in Fig.1. Next, put the battery as shown in Fig.2. Move it in the direction of the arrow shown in Fig.3 until it
locks in. Use only the MB400 battery as spec ified. Otherwise, the unit may cause problems or malfunction.
Fig. 1
Fig. 2
Fig. 3
Caution
Misuse of the battery may cause leaks, abnormal heat, fire or explosion.
For safe use, please observe the following precautions fully.
* Do not short-circuit the terminal of the removed battery.
* Do not cause an impacted shock due to throwing, dropping or striking.
* Do not disassemble or remodel the battery.
* Do not throw the battery into a fire or any sources with heat.
* Do not leave the battery in a place with high temperature.
* Do not wet the terminal of the battery.
* Do not cool the battery, and do not charge it in cold outdoor conditions. It decreases performance
and battery life.
* Do not charge the battery in any other way except according to specifications.
* When you keep the battery, please keep it in a cool, dark environment where humidity is low.
Moreover, please keep it out of reach from children.
If the battery remains not used for a long time, it might decrease its charges.
* Please exchange the battery for a new one (MB400) when operating time extremely shortens.
21
7. Center Frequency <FREQ>
When is pushed, the following function menu is displayed.
7.1 Setting with step keys ( [F1], [F2] )
1. When is pushed, the center frequency decreases in the set step size.
2. When is pushed, the center frequency increases in the set step size.
3. Setting step size:
When is pushed, the step size is changed according to the following.
AUTO 100MHz 10MHz 1MHz 100kHz 20kHz
AUTO : The step size is 1/10 of the frequency span.
However, only for 500 kHz frequency span, the step size is set to 50 kHz.
If the frequency span is less than 500 kHz, the step size is set to 20 kHz.
AUTO is recommended for normal use.
7.2 Setting with encoder
1. By rotating , the center frequency is changed in the set step size.
2. Setting step size:
When is pushed, the step size is changed according to the following.
AUTO 100MHz 10MHz 1MHz 100kHz 20kHz
AUTO : The step size is 1/500 of the frequency span
However, if the frequency span is less than 5 MHz, the step size is set to 20 kHz.
AUTO is recommended for normal use.
CENTER FREQ KeyStep
100M
EncStep
0.1M
SET
MKR
Ten Key
Mode
←
→
F1 F2 F3 F4 F5 F6
FREQ
* Center frequency setting range: 0 to 3.3 GHz for 2650A/2652A/2651, 0 to 8.5 GHz for 2658A
* The center frequency may shift for a while (up to 10 sec.), after setting is changed.
F1
F2
F3
F4
22
7.3 Setting with numeric key
1. When is pushed, the following function menu is displayed.
2. , and correspond to <GHz>, <MHz> and <. >
and correspond to <CLEAR> and <BACK SPACE>.
Changing the center frequency by encoder is available in Ten Key Mode.
3. The center frequency can be entered directly according to “Numeric Key Mapping Diagram” as follows.
“Numeric Key Mapping Diagram”
4. The center frequency is determined by inputting the unit of frequency.
To enter the unit, and are available.
( and are also available.)
* Any figures below the setting resolution (20 kHz) will be truncated.
5. Change of setting
The setting can be changed before pushing the unit key.
: The setting values are cleared.
: The last input digit is deleted.
“.”
CLEAR
BACK
SPACE
RETURN
GHz
MHz
F1 F2 F3 F4 F5 F6
HOLD
RUN
SCALE
RBW VBW
SWEEP
AUTO
TUNE
MKR
MEAS CALC
SAVE
LOAD
COPY UTIL DSPL
1
2
3
4
5
6
7
8
9
0
.
MHz
GHz
F6
F1 F2 F3
F4 F5
UTIL DSPL
F1 F2
F4
F5
23
6. Cancel of Ten Key Mode
By pushing or , unit will return to function menu.
7.4 According t o Marker Pos ition
When is pushed, the center frequency is set according to the frequency of current marker position.
* Any figures below the setting resolution (20 kHz) will be truncated.
* When the marker is not displayed, this operation is invalid. (The menu option disappears.)
8. Frequency Span <SPAN>
When is pushed, the following function menu is displayed.
By opera ting , the frequency span is set.
2650A / 2652A / 2651
By rotating , the frequency span is changed in the specified step size as follows.
ZERO 200k 500k 1M 2M 5M 10M
20M 50M 100M 200M 500M 1G 2G FULL (3.3 GHz)
2658A
1. By rotating , the frequency span is changed in the specified step size as follows.
ZERO 200k 500k 1M 2M 5M 10M 20M
50M 100M 200M 500M 1G 2G 5G FULL (8.5 GHz)
2. By pushing , the frequency span is set to FULL SPAN. Under this condition, the instrument
will return to the former span when the rotary knob is rotated.
3. By pushing , the frequency span is set to ZERO SPAN.
NORMAL
SPAN
FULL
SPAN
ZERO
SPAN
SPAN
1GHz
50MHz 1MHz
F1 F2 F3 F4 F5 F6
FREQ F6
F5
SPAN
SPAN
F2
F3
24
4. When is pushed and then the setting is FULL or ZERO span, the frequency span is returned to
the last setting.
5. By pushing ~ , the frequency span in function menu is set.
8.1 Switching Frequency Band
2658A has three frequency bands.
The frequency band is automatically set to the appropriate band based on the center frequency and span.
(At the span less than 200 MHz, only one band is used.)
When the setting frequency range belongs to two bands, the lower band has priority.
The frequency connection point of two bands is fixed as follows.
Two bands
Frequency connection point
Base band and Band 1
-
3.4 GHz
Band 1- and Band 1+
6.2 GHz
Note: The spectrum may change a little at the frequency connection point.
For accurate measurement, center frequency and span should be set as the measured frequency range in one band.
Frequency band
Measured frequency range
Base band
50 kHz to 3.5 GHz
Band 1
-
3.3 GHz to 6.3 GHz
Band 1+
6.1 GHz to 8.5 GHz
F1
F4 F6
25
9. Reference Level <REFER>
When is pushed, the following function menu is displayed.
9.1 Setting of Reference Level
By rotating , the reference level is changed.
(Refer to “9.7 Reference Level Setting Range for Each Unit” for details.)
9.2 Change of Unit of A mplitude A xis
When is pushed, the unit is set as follows.
dBm dBμV dBmV dBV
9.3 Setting of Step Size of Reference Level
By pushing , the step size is changed to 10 dB or 1 dB.
9.4 On-Off Setting of Offset
By pushing , the offer set ON/OFF is changed.
9.5 Setting of Offset Level
1. By operating , the offset of reference level is set.
When external amplifier or attenuator is used, the display level can be matched by the offset.
The setting range is -50.0 to 50.0 dB.
The reference level is displayed including the offset.
* If the offset is set, “OFST” is displayed in Amplitude axis setting values display area.
Furthermore, the level at the marker point is displayed including the offset.
OFS STEP
1dB
OFFSET
OFF
OFSdB
0.0
IMP
50Ω
F1 F2 F3 F4 F5 F6
UNIT
dBm
RL STEP
1dB
REFER
F1
F2
F4
F5
26
* If the unit is changed to dBμV, dBmV, dBV or dBm, the offset is automatically changed.
2. By pushing , the step size of offset is changed. (10 dB, 1 dB, 0.1 dB)
9.6 Setting of Input Impedance
By pushing , the input compensation can be set to 50 Ω (no offset) or 75 Ω. (5.6 dB offset
compensation)
The reference level is adjusted automatically, based on the input impedance selection. When the input impedance
is set to 75 Ω, the reference level is displayed including offset and conversion of 75Ω. For the amplitude reading to
be correct, a coaxial 50 Ω /75 Ω impedance conversion adapter must be connected to the RF input.
* When “75 Ω” is selected, values in Amplitude axis setting values display area will change according to
75 Ω, and the offset is set to 5.7 dB (insertion loss of 50 Ω /75 Ω adapter ). Moreover, the offset can be
changed.
When the unit at marker point is set to W, V, V/m or other, it is converted correctly from dBm.
* Be sure to attach a coaxial 50 Ω /75 Ω impedance conversion adapter when selecting “75 Ω”
9.7 Reference Lev el Setting Range for Each Unit
Unit dBm dBμV dBmV dBV
Maximum
10
117
57
-3
Minimum
-40
67
7
-53
Minimum
(shifted spectrum data) -60 47 -13 -73
“Available unit in measuring function”
Unit dBμV/m (Electric field strength measurement)
dBμA/m
(Magnetic field strength
measurement)
Setting
M401
M402
M403
M404
M405
M406
CP-2S
Maximum
143
146
149
150
137
159
160 ~ 203
Minimum
93
96
99
100
87
109
110 ~ 153
Minimum
(shifted spectrum
data) 73 76 79 80 67 89 90 ~ 133
* When the reference level is set between “Minimum” and “Minimum (shifted spectrum data)”, the
spectrum of “Minimum” is shifted and displayed on the screen.
F3
F6
27
* When the reference level is set below “Minimum”, “*S/W AMP” is displayed in Amplitude axis setting
values display area on the screen.
Calculation formula (conversion from dBm)
● A[dBμV] = 107 + X [dBm] ● B[dBmV] = 47 + X [dBm] ● C[dBV] = -13 + X [dBm]
● D[dBμV/m] = 68.8 / λ×√(X/Gar) [dBm] λ : Wavelength[m] Gar : Antenna absolute gain[times]
● E[dBμA/m] = 107 + X + F[dBm] F : Probe calibration coefficient[dB] **changes depending on the
frequency.
9.8 Relationship Between Reference Level and ATT/AMP (at dBm)
Internal input attenuator (ATT) and IF amplifier (AMP) are automatically set to the optimum values based on the
reference level (REFER). (The input attenuator cannot be set independently.)
REFER
(dBm)
ATT
(dB)
AMP
(dB)
REFER
(dBm)
ATT
(dB)
AMP
(dB)
REFER
(dBm)
ATT
(dB)
AMP
(dB)
REFER
(dBm)
ATT
(dB)
AMP
(dB)
10 25 0
-3 12 0
-16 20 21
-29 7 21
9 24 0
-4 11 0
-17 19 21
-30 6 21
8 23 0
-5 10 0
-18 18 21
-31 5 21
7 22 0
-6 9 0
-19 17 21
-32 4 21
6 21 0
-7 8 0
-20 16 21
-33 3 21
28
* When the input signal level is higher than the proper level for 1st mixer’s terminal, harmonics distortion and
spurious are generated.
This product is designed so that the input signal level of 1st mixer is determined to proper level based on the
reference level.
5 20 0
-8 7 0
-21 15 21
-34 2 21
4 19 0
-9 6 0
-22 14 21
-35 1 21
3 18 0
-10 5 0
-23 13 21
-36 5 26
2 17 0
-11 4 0
-24 12 21
-37 4 26
1 16 0
-12 3 0
-25 11 21
-38 3 26
0 15 0
-13 2 0
-26 10 21
-39 2 26
-1 14 0
-14 1 0
-27 9 21
-40 1 26
-2 13 0
-15 0 0
-28 8 21
29
10. Display Scale <SCALE>
When is pushed, the following function menu is displayed.
10.1 Setting t he Function Key
1. By pushing , 10 dB/div display scale is set.
2. By pushing , 5 dB/div display scale is set.
3. By pushing , 2 dB/div display scale is set.
11. Resolution Bandwidth <RBW>
When is pushed, the following function menu is displayed.
11.1 MANUAL Mode
By pushing or rotating , MANUAL mode is set.
By rotating , RBW is set as follows.
2650A/2652A/2658A: 3kHz 10kHz 30kHz 100kHz 300kHz 1MHz 3MHz
2651: 3kHz 9kHz 30kHz 120kHz 300kHz 1MHz 3MHz
MANUAL
RBW
AUTO ALL AUTO
F1 F2 F3 F4 F5 F6
10div/
SCALE
5div/
2div/
F1 F2 F3 F4 F5 F6
SCALE
F1
F2
F3
RBW
F1
30
11.2 AUTO Mode
By pushing , the optimum RBW is set based on the frequency span and sweep time.
* When AUTO mode is set, “*” is displayed on the right end of RBW setting value display.
11.3 ALL A UTO Mode
By pushing , the optimum RBW, VBW and sweep time are set based on the frequency span.
* When ALL AUTO mode is set, “*” is displayed on the right end of each setting value display.
* When RBW is set to 3 kHz or 10 kHz, the selectivity at 60 dB becomes larger than an actual value due to SSB
phase noise.
12. Video Bandwidth <VBW>
When is pushed, the following function menu is displayed.
12.1 MANUAL Mode
By pushing or rotating , MANUAL mode is set.
By rotating , VBW is set as follows.
100Hz 300Hz 1kHz 3kHz 10kHz 30kHz
100kHz 300kHz 1MHz
12.2 AUTO Mode
By pushing , the optimum VBW is set based on the frequency span and sweep time.
When AUTO mode is set, “*” is displayed on the right end of VBW setting value display.
MANUAL
VBW
AUTO ALL AUTO
F1 F2 F3 F4 F5 F6
F2
F3
VBW
F1
F2
31
12.3 ALL A UTO Mode
By pushing , the optimum RBW, VBW and sweep time are set based on the frequency span.
* When ALL AUTO mode is set, “*” is displayed on the right end of each setting value display.
13. Sweep Axis / Detection Mode <SWEEP>
When is pushed, the following function menu is displayed.
* T.G. MODE [F6] is only for 2652A. This menu is not displayed on 2650A, 2651 and 2658A.
For the details, refer to “22. Tracking Generator Mode”. [F5] is only displayed when an external trigger signal is
detected at the trigger port.
13.1 MANUAL Mode
By pushing or rotating , MANUAL mode is set.
By rotating , sweep time is set as follows.
10ms 30ms 0.1s 0.3s 1s 3s 10s 30s
* For 2650A, 2651 and 2652A, when the setting is FULLSPAN, it cannot be set to 10 ms.
* For 2658A, when the setting is 5 GHz SPAN or FULLSPAN, it cannot be set to 10 ms.
13.2 AUTO Mode
By pushing , the optimum sweep time is set based on the frequency span and RBW.
* When AUTO mode is set, “*” is displayed on the right end of SWEEP setting value display.
13.3 ALL A UTO Mode
By pushing , the optimum RBW, VBW and sweep time are set based on the frequency span.
* When ALL AUTO mode is set, “*” is displayed on the right end of each setting value display.
13.4 Setting of Detection Mode
(For 2651, refer to “20. EMI test”)
F1 F2 F3 F4 F5 F6
DET
SMPL
TRIG
INT
T.G.
MODE
MANUAL
SWEEP
AUTO ALL AUTO
F3
SWEEP
F1
F2
F3
32
By pushing , the detection mode is set.
POS SMPL NEG
POS (Positive Peak): The maximum value of the sample points is detected.
SMPL (Sample): The momentary value of the sample points is detected.
NEG (Negative Peak): The minimum value of the sample points is detected.
13.5 Setting of Trigger Source
By pushing , the trigger source is set.
INT EXT
INT: The sweep is automatically repeated. This setting is normally used.
EXT: When the signal over the trigger level (0.56 V) is input to external trigger input, the sweep
starts. The sweep automatically starts without an input. (Available only for zero span)
14. AUTO Tuning <AUTO TUNE>
When is pushed, the spectrum with the maximum level is searched within full span, and then
it is adjusted to the center of the screen, and the optimum setting parameters are set.
* Set the frequency span before setting AUTO tuning.
* There is no function menu displayed for this mode. Auto tuning will execute upon pushing the key.
* The auto tuning does not operate normally in the following conditions.
1) Zero span
2) Full span
3) The signal level is –40 dBm or lower.
4) The signal frequency is 50 MHz or lower.
15. Hold / Run <HOLD/RUN>
By pushing , the sweep is switched to halt and continuance.
* There is no function menu displayed for this mode.
F4
F5
AUTO TUNE
HOLD / RUN
33
16. Calculation Function <CALC>
When is pushed, the following function menu is displayed.
* By pushing , the sweep is restarted.
* By pushing ~ , the calculation function is selected.
By rotating , the number of times of the sweep can be set.
16.1 NORMAL Mode
1. When is pushed, the normal mode is set. The calculation is not performed in this mode. The
number of times of the sweep is infinite. This mode is normally used.
* When this mode is set, “NORMAL” is displayed in the CALC area on the screen.
(Refer to “4. Explanation of Screen” for the details.)
16.2 MAX HOLD Mode
1. By the operation of , the number of times of the sweep in the MAX HOLD mode
is set.
2. The update spectrum data is compared with the data left last time at each point, and the larger one is retained
and displayed.
2 4 8 16 32 64 128
256 512 1024 * * (infinite)
* When this mode is set, “MAX --- (number of times)” is displayed in the CALC area on the screen.
(Refer to “4. Explanation of Screen” for the details.)
16.3 MIN HOLD Mode
1. By the operation of , the number of times of the sweep in the MIN HOLD mode
is set.
MIN HLD
* *
AVG
56
OVRWR
* *
SPRI FR
OFF
F1 F2 F3 F4 F5 F6
NORMAL
MAX HLD
* *
CALC
HOLD / RUN
F1 F5
F1
F2
F3
34
2. The update spectrum data is compared with the data left last time at each point, and the smaller one is retained
and displayed.
2 4 8 16 32 64 128
256 512 1024 * * (infinite)
* When this mode is set, “MIN --- (number of times)” is displayed in the CALC area on the screen.
(Refer to “4. Explanation of Screen” for the details.)
16.4 A VERAGE Mode
1. By the operation of , the number of times of the sweep in the AVERAGE mode is
set.
2. The simple averaging process is executed at each sweep.
2 4 8 16 32 64 128
256 512 1024
* When this mode is set, “AVG --- (number of times)” is displayed in the CALC area on the screen.
(Refer to “4. Explanation of Screen” for the details.)
16.5 OVERWRITE Mode
1. By the operation of , the number of times of the sweep in the OVER WRITE
mode is set.
2. The image on the screen is not cleared at each sweep, and the overwriting display is executed.
2 4 8 16 32 64 128
256 512 1024 * * (infinite)
* When this mode is set, “OVER WR” is displayed in the CALC area on the screen.
(Refer to “4. Explanation of Screen” for the details.)
* Only the last spectrum is saved.
16.6 SPURIOUS FREE Mode (2658A only)
1. By pushing , the SPRIOUS FREE mode, by which the spurious response at band 1- and band
1+ is simply deleted, is selected.
* “SPR” is displayed in CALC area on the screen.
(Refer to “4. Explanation of Screen” for the details.)
F4
F5
F6
35
* Differing from base band at which the up-conversion of input frequency is done with a frequency mixer, the
spurious response peculiar to band 1- and band 1+ is generated because the down-conversion is done at those
two bands.
* About SPURIOUS FREE mode
1. SPURIOUS FREE mode is a mode by which the spurious response peculiarly caused at band
1+ is simply deleted.
2. SPURIOUS FREE mode is especially effective in the measurement of a stationary wave.
3. If SPURIOUS FREE mode is used in measurement of a signal with level change or frequency
change, the phenomenon that the level goes down will occur.
4. The noise level goes down a little in case of a noise changing at random. In short, the same
phenomenon as MIN HOLD function happens.
* How to judge SPURIOUS response at band 1- and band 1+
The procedure for judging SPURIOUS response at band 1- and band 1+ is as follows.
1. Set the center frequency to < (current setting value) + f >.
2. The spectrum shifting left by f is a correct spectrum, but another spectrum shifting such as left
by 2f, left by 3f, right by f, right by 2f or right by 3f is a spurious response.
* “f ” should be changed according to SPAN for easy judgment. For reference;
f = SPAN / (10 to 50) (corresponding to 0.2 to 1 div)
Example: judging a spectrum displayed at 6.92 GHz
(setting : center frequency 6.92 GHz and SPAN 500 MHz)
1. Set the center frequency to < 6.92 GHz + 500 MHz/25 > = 6.94GHz.
2. A spectrum at 6.92 GHz (shifting left by f from 6.94 GHz) is correct. A spectrum at 6.98 GHz (shifting
right by 2f from 6.94 GHz) is spurious.
* Additionally, a spurious response mentioned above shifting right by 2f at band 1+ is largest, and other
spurious response are about 25 to 50 dB smaller than that.
17. Marker & Peak Search <MKR>
When is pushed, the following function menu is displayed.
● Main menu of marker function
F1 F2 F3 F4 F5 F6
CONV
dBm →W
NORMAL
MARKER
DELTA
OFF
CENTER FREQ
NORMAL ZONE
MKR
36
17.1 Mov ement and B asic Fun ction of Marker
1. By rotating , the marker moves.
2. By pushing , the normal marker mode is selected and the marker operates as an independent
marker.
The frequency and the level at the marker point are displayed in the lower right side.
3. When is pushed, the delta marker mode is selected, and the reference marker and
the active marker are displayed.
The frequency and the level at the marker points are displayed as follows;
Frequency = (freq. at active marker) – (freq. at reference marker)
Level = (level at active marker) – (level at reference marker)
4. By pushing , the marker is erased (marker off).
17.2 Normal Peak Search
● Menu of normal peak search
When is pushed, the following function menu is displayed.
1. When is pushed, the marker moves to the maximum peak position of spectrums.
2. When is pushed, the marker moves to the next highest peak. Fifty or less peaks are available.
3. When is pushed, the function menu is returned to the main menu of marker function.
17.3 Zone Peak Search
● Menu of normal peak search
When is pushed, the following function menu is displayed.
RETURN
F1 F2 F3 F4 F5 F6
PEAK
SEARCH
NEXT
PEAK
F1
F2
F3
F4
F1
F2
F6
F5
37
At the Zone mode, the marker automatically moves to the maximum peak point within the range set beforehand.
When entering this mode, the zone is displayed with thin blue shadow in the spectrum display area.
The marker moves to maximum level within this zone at each sweep.
The center of the zone can be adjusted by pressing
The width of the zone can be adjusted by pressing
Note: The marker does not move in HOLD.
17.4 Change Unit of Marker Level
When is pushed, the unit of the marker level is changed.
If the unit of the reference level is dBm, it can be changed to [dBm] [W].
If the unit of the reference level is dBμV, dBmV or dBV, it can be changed to
[dBμV, dBmV, dBV] [V].
If the unit of the reference level is dBμV/m, it can be changed to [dBμV/m] [V/m].
If the unit of the reference level is dBμA/m, it can be changed to [dBμA/m] [A/m].
Note: “V/M” is only displayed when the electric field strength measurement is selected
“A/M” is only displayed when the magnetic field strength measurement is selected
Each unit change as described above has their own sub-menu for more unit display options. They are
shown below:
[W] [W, mW, μW, nW, pW, fW]
[V] [V, mV, μV, nV]
[V/m] [V/m, mV/m, μV/m, nV/m]
[A/m] [A/m, mA/m, μA/m, nA/m]
18. Save / Load <SAVE/LOAD>
When is pushed, SAVE/LOAD menu is displayed as follows.
F1 F2 F3 F4 F5 F6
RETURN
ZONE
CENTER
WIDTH
F1
F2
F6
SAVE / LOAD
38
18.1 Selection of Storage Dev ice
1. When is pushed, the built-in flash memory is selected as a storage device.
When is pushed, the external USB memory is selected as a storage device.
* Install the USB memory in USB A- plug on the right side firmly. Refer to the figure below.
* Once you disconnect, then reconnect the same or a different USB flash memory drive, the 2650A series
will not automatically recognize the new USB drive. After connecting the drive, you must first press the
Save/Load key, followed by F5 key (USB) in order for the 2650A to "see" the new drive., then proceed as
described below.
.
F1 F2 F3 F4 F5 F6
PRE
SET
SAVE
MODE SELECT
LOAD DELETE
DEVICE
MEM
USB
PRE
SET
F4
F5
39
18.2 Save Funct ion
When is pushed, SAVE menu is displayed as follows.
1. In this function, the data is stored in the built-in memory or USB memory by CSV format.
The data stored in USB memory can be used with a personal computer as a CSV file.
“2650A_csvData” folder will automatically be created and the data will be stored in it as a file.
2. The object to be stored is selected with , or .
SPECT: The current spectrum on the screen is stored.
PARAM: The setting parameters are stored.
BOTH: The spectrum and setting parameters are stored as one file.
* The selected key will look pushed-in on the display.
3. When is pushed, SAVE is executed.
The data is stored based on the file name displayed in the active area (refer to “4. Explanation of screen”).
As for the file name, refer to “18.3 About File Name”.
Up to 200 files can be stored in the built-in memory.
Up to 1000 files can be stored in USB memory.
4. Pushing will return to the former menu.
18.3 About File Name
1. The file name is attached to the file stored using this function as follows.
LABEL-SP001.csv
(1) (2) (3) (4)
(1) Th is is the label e ntere d from t he lab el fun ctio n. Refer to “24.1 Label function.” Note: Symbols and
spaces are not recognized as a file name.
(2) S : The object stored is the spectrum (SPECT).
P: The object stored is the setting parameters (PARAM).
SP: The object stored is both of spectrum and setting parameters (BOTH).
(3) The consecutive three digit number from “000” is automatically attached if (1) and (2) are same.
(4) This is the extension showing CSV format and is automatically attached.
F1 F2 F3 F4 F5 F6
SPECT
OBJECT
PARAMM
BOTH
SAVE
EXECUTE
PRE
SET
RETURN
F1
F1 F2 F3
F4
F6
40
2. If the label is not named, “2650A” will be the first part of the file name instead. For example:
2650A_SP001.csv
3. About file name at the time of storage
When SAVE is selected, the file name is displayed in the active area following according to the above labeling
convention.
When SAVE is executed as it is, the data is stored with that file name. If the file exists in the storage device and
is rotated left before SAVE is executed, those file names are displayed one by one.
If SAVE is executed with an existing file name displayed, the data is overwritten on it.
18.4 Load Function
When is pushed, LOAD menu is displayed as follows.
1. When is rotated righ t or left, the stored file name is displayed one by one from the specified
storage device in the active area as follows.
1) The storage device in which the file is stored.
(USB: USB memory, MEM: built-in memory)
2) The file name selected.
3) Number attached to file
The files in the specified folder of the storage device are sorted in alphabetical order, and this shows that
number.
2. To search files, press
, and the file will be displayed in order of the number attached to it in the active area.
The search steps can be adjusted by pressing to search in steps of 10 files at a time or pressing
to search in steps of 100 files at a time.
Select it according to the number of stored files.
3. When is pushed, LOAD is executed.
* When SPECT is selected, a spectrum waveform is loaded. The setting parameters of loaded spectrum
are displayed in the setting parameters display area.
[Refer to “4. Explanation of screen” for details.]
F1 F2 F3 F4 F5 F6
RETURN
1
File Search Step
10
100
LOAD
EXECUTE
DISP
CLEAR
F2
1) USB : LOAD
2) 2650A_SP012.csv
3) 12
F1
F2
F3
F4
41
* When PARAM is selected, setting parameters are loaded.
* When the spectrum is loaded, the 2650A series enters HOLD state and the current spectrum disappears,
replacing it with the loaded spectrum on main display.
When is pushed right after, the loaded spectrum and a current spectrum are
displayed together.
4. When is pushed, the loaded spectrum can be cleared on display.
18.5 Delete Function
When is pushed, DELETE menu is displayed as follows.
1. The file name to be deleted is selected from the specified device with , and the active area will
indicate this name. As for the number of search steps, it is the same as “18.4 Load Function”.
2. When is pushed, DELETE is executed. The file displayed in the active area is deleted at this
time.
3. Repeat step 1 and 2 above to delete more than one file.
18.6 Presetting (Initialization)
(For 2651, refer to “20. EMI test”)
When is pushed, the setting parameters are reset to the preset values as shown below.
Items
Parameters
Center frequency
1 GHz
Frequency span
20 MHz
Reference level
10 dBm
Offset
0.0 dB
Impedance
50 Ω
Sweep time
30 ms
Detection mode
Sample mode (SMPL)
RBW
100 kHz
VBW
30 kHz
Display scale
10 dB/div
F1 F2 F3 F4 F5 F6
RETURN
1
File Search Step
10
100
DELETE
EXECUTE
HOLD/RUN
F5
F3
F4
F6
42
19. Measuring Function <MEAS>
When is pushed, the following function menu is displayed.
The measuring function can be selected as follows.
CH POWER ----------- Channel power measurement
ACP ----------------------- Adjacent channel leakage power measurement
OBW ---------------------- Occupied bandwidth measurement
E/F ANT ---------------- Electric field strength measurement
M/F PROBE ----------- Magnetic field strength measurement
FREQ COUNT --------- Frequency counter (factory option)
* Once the measuring function is set, when is pushed, the function menu is directly returned to the last
setting of the measuring function. In order to stop the measuring function or to select the other measuring function,
push [F6] key (MEAS OFF), then the function menu is returned to the main menu of the measuring function.
* Each of the four functions (Channel power, Adjacent channel leakage power, Occupied bandwidth and Frequency
counter) and the marker function cannot be used at the same time. When is pushed while each of the
four functions is selected, the measuring function will stop.
Similarly, when the measuring function is selected while using the marker function, the marker function will stop.
* Although 501 points can be displayed on the screen, the number of points calculated in the instrument is 1001.
19.1 Channel Power Measuremnt <CH POWER>
The total power in the specified frequency band is measured.
Two modes, TOTAL and BAND, are available.
• TOTAL mode [ By pushing (MODE), TOTAL mode is selected.]
The sum of power in the displayed spectrum specified by center frequency and frequency span is measured.
F1 F2 F3 F4 F5 F6
FREQ
COUNT
E / F
ANT
M / F
PROBE
OBW
CH POWER
ACP
F1
F2
F3
F4
F5
F6
MEAS
MKR
F1
MEAS
43
• BAND mode [ By pushing (MODE), BAND mode is selected.]
The sum of power in the band specified by band center and bandwidth is measured.
19.2 Adjacent Channel Leakage Power Measurement <ACP>
The adjacent channel leakage power is measured as the ratio of power in the range specified by offset frequency
and bandwidth to carrier power. Both leakage power at the upper and lower side are measured.
Furthermore, the method for measurement is selected out of three methods based on the classification of definition
of carrier power; total power method, reference level method and in-band method.
• Mode selection and measurement
[ By pushing (MODE), TOTAL, BAND or PEAK mode is selected.]
* “ACP TOTAL”, “ACP BAND” or “ACP PK” is displayed in MEAS area on the screen.
* “CP BAND” is d isplay ed in MEAS ar ea on the s creen.
* The meas ured value and the s etting p arameter a re
displayed at the l ower part of the screen.
1. By (BAND ENTER) ,
the band cen ter is s et.
2. By (BAND WIDTH) ,
the band width is set.
[Measuring Mode] [Measured Value]
[Setting parameter]
F2
F3
* “CP TOTAL” is displayed in MEAS area on the screen.
* The measured value is displayed at the lower right corner on
the screen.
[Measuring Mode]
[Measured Value]
F1
F1
F2
44
* The measured value and the setting parameter are displayed at the lower part of the screen.
• Definition of Reference Carrier for each Mode
1. By (ACP OFFSET) , the
offset frequency of adjacent channel is set.
* The offset is from the center frequency of the reference
carrier.
2. By (ACP WIDTH) , the
band width of adjacent channel is set.
3. By (REFERENCE CENTER) ,
the center frequency of the reference carrier is set.
* [F4] is only for TOTAL and BAND mode.
4. By (REFERENCE WIDTH) ,
the band width of reference carrier is set.
* [F5] is only for BAND mode.
[Measured value]
[Setting parameter]
[Measuring mode]
F2
F3
F4
F5
TOTAL (tota l power m ethod)
This is based on the sum of power in the
displayed s pectrum. The center frequency
of the reference carrier is set by [F4].
BAND (in-band method)
This is based on the sum of power in the
specified bandwidth. The center
frequency of the reference carrier is set by
[F4].
PEAK (reference level method)
This is based on the power of peak on the
screen. The center frequency of the
reference carrier is automatically set to the
peak on the screen.
45
19.3 Occupied Bandwidth Measurement <OBW>
It is possible to measure the occupied frequency bandwidth defined as the width of points at N(%) of the total
power (N% POWER), or as the width of points that are X(dB) lower than the peak level (XdB DOWN).
• N% POWER mode [ By pushing (MODE), N% POWER mode (N%) is selected.]
The bandwidth of points at N(%) of the total power is measured.
• XdB DOWN mode [ By pushing (MODE), XdB DOWN mode (X dB) is selected.]
The bandwidth of points that are X(dB) lower than the peak level is measured.
19.4 Electric Field Strength Measurement <E/F ANT>
Connecting a dipole antenna (option) to the RF input enables the measurement of the electric field strength.
Other than the optional antenna is also available by creating the original compensation data.
(Refer to “25.8 Writing of Original Compensation Data” for the details.)
F2
F3
[Measuring mode] [Measured value]
[Setting parameter]
* “OBW XdB” is displayed in MEAS area on the screen.
* The measured value is displayed at the lower right corner on the screen.
1. By (XdB) , the down level from
the peak level is set.
* Setting range : 0.1 to 99.0dB
2. By , the step size of XdB can be set to 1dB or 0.1dB.
* “OBW N%” is displayed in MEAS area on the screen.
* The measured value is displayed at the lower right corner on the screen.
1. By (RATIO %) , the percentage of the
total power is set.
* Setting range : 80.0 to 99.9%
2. By , the step size of RATIO % can be set to 1% or 0.1%.
F2
F3
F3
F1
[Measuring mode]
[Setting parameter]
[Measured value]
F1
F4
46
[Specifications of dipole antenna (The antenna gain and VSWR are specified at the center of frequency range.)]
* When M405 is used, the measurement errors will occur due to how to hold of instrument and influence of
human body, because M405 is ¼ λ whip antenna. The error value will be several dB or more. In order to
reduce the error, separate 2650A series from human body as much as possible.
• Mode Selection and Measurement
By pushing (ANT), the antenna (M401/M402/M403/M404/M405/M406/USER) can be selected
The measurement starts as soon as the antenna is selected.
Items M401 M402 M403 M404 M405 M406
Type Sleeve Sleeve Sleeve Sleeve ¼ λ whip Sleeve
Frequency range 0.8 to 1GHz 1.25 to 1.65GHz 1.7 to 2.2GHz 2.25 to 2.65GHz 300 to 500MHz 4.7 to 6.2GHz
Antenna gain >1dB >1dB >1dB >1dB >1dB >1dB
VSWR < 1.5 < 1.5 < 1.5 < 1.5 < 1.5 < 1.5
Dimensions 7.5φ ×280mm 7.5φ ×280mm 7.5φ ×210mm 7.5φ ×210mm 8.0φ ×212mm 7.5φ ×152mm
Weight Approx. 58g Approx. 60g Approx. 58g Approx. 56g Approx. 62g Approx. 54g
Reference level
setting range
(except for the
minimum value in
screen shift)
93 to 143
dBμV/m
96 to 146
dBμV/m
99 to 149
dBμV/m
100 to 150
dBμV/m
87 to 137
dBμV/m
109 to 159
dBμV/m
2650A series
* Turn the back to the signal source.
Connect to
RF INPUT.
Antenna
M401
M402
M403
M404
M405
M406
[Antenna connection] [Measurement environment]
F1
47
* “E/F M40X” or “E/F USER” is displayed in MEAS area on the screen.
* “USER” is the original compensation data which is created by the user.
(Refer to “25.8 Writing of Original Compensation Data” for the details.)
* The spectrum may exceed the area on the screen depending on the antenna gain compensation.
The unit of amplitude axis automatically changes into [dBμV/m].
* The optimum center frequency and frequency span are automatically set according to the antenna.
In addition, a spectrum other than the frequency range of the antenna is not displayed.
• Directivity of Antenna (reference data)
* The following are the data when the antenna is connected to RF input directly with no obstacles around.
Actually, the directivity changes due to the human body when handling the unit.
* However, the data of M405 is the reference data which is included the influence of the human body.
0°
90°
270°
180°
E plane: X-Y axis (X direction=0°)
M401 (900 MHz, E plane)
Antenna gain vs. Frequency
48
M404 (2.4 GHz, E plane)
Antenna gain vs. Frequency
M403 (2 GHz, E plane)
Antenna gain vs. Frequency
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
1.7 1.8 1.9 22.1 2.2
Ｆｒｅｑｕｅｎｃｙ （GHｚ）
ANT Gain (dBi)
M402 (1.5 GHz, E plane)
Antenna gain vs. Frequency
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
2.25 2.35 2.45 2.55 2.65
Ｆｒｅｑｕｅｎｃｙ （GHｚ）
ANT Gain (dBi)
49
19.5 Magnetic Field Strength Measurement <M/F PROBE>
The magnetic field distribution can be measured by using the magnetic field probe CP-2S (option).
M406 (5.4 GHz, E plane)
Antenna gain vs. Frequency
4.70
Frequency（GHz）
3.5
3
2.5
2
1.5
1
ANT Gain (dB)
4.95
5.20 5.45 5.70 5.95 6.20
M405 (horizontal plane)
Antenna gain vs. Frequency
F5
50
“Specifications of magnetic field probe CP-2S” (Refer to the operating manual of CP-2S for the details.)
• Mode Selection and Measurement
By pushing (PROBE), CP-2S or USER mode is selected.
The measurement starts as soon as the probe is selected.
* “M/F CP2S” or “M/F USER” is displayed in MEAS area on the screen.
* “USER” is the original compensation data which is created by the user.
(Refer to “25.8 Writing of Original Compensation Data” for the details.)
The unit of amplitude axis automatically changes into [dBμA/m].
* A spectrum other than the frequency range of the probe is not displayed.
Item
Specifications
Frequency range
10 MHz to 3 GHz
Space resolution (-6 dB)
approx. 0.25 mm
(depending on objects)
Reference level setting range: maximum
160 to 203 dBμA/m
Reference level setting range: minimum
(except for the minimum value in screen shift) 110 to 153 dBμA/m
Measurement error
approx. ±1 dB (probe simple substance)
[Magnetic field probe connection]
The tip of the magnetic field probe CP-2S is made of glass-ceramic board. Take
care when handling the probe even though the strength of the glass-ceramic
board is durable under normal operation.
F1
51
19.6 Frequency Counter <FREQ COUNT>
This function currently not supported.
20. EMI Test (2651)
20.1 Additional Function for EMI Test
Detection mode (Refer to “13.4 Setting of Detection mode”)
By pushing , the detection mode can be set.
POS SMPL NEG QP AV
In the 2651, QP detection and AV detection are added for EMI measurement.
POS (Positive Peak) : The spectrum of the maximum value between the sample points
SMPL (Sample) : The spectrum of the momentary value between the sample points
NEG (Negative Peak) : The spectrum of the minimum value between the sample points
QP (Quasi Peak) : The spectrum of the quasi peak value between the sample points
AV (Average) : The spectrum of the average value between the sample points
As for QP detection, the following characteristics are chosen according to RBW settings.
(based on CISPR16)
RBW charging
time constant
dis-charging
time constant
meter
time constant
9kHz 1ms 160ms 160ms
120kHz 1ms 550ms 100ms
• Preset (Initialization) (Refer to “18. Save / Load”)
In the 2651, the radiated emission measurement and the conducted emission measurement are added to the
preset as a default setting.
By pushing , the menu is displayed
NORMAL : The initial parameters of normal mode are set.
EMI-C : The initial parameters of conducted emission measurement are set.
EMI-R : The initial parameters of radiated emission measurement are set
In the radiated mission measurement, “USER” is selected as an antenna.
It is necessary to input the compensation data of antenna beforehand.
F6
F6 SWEEP
F6 SAVE/LOAD
F1
F2
F3
52
20.2 EMI Test
The QP detection is usually used in both of the radiated and conducted emission measurements, and the AV
detection is usually used in the conducted emission measurement. The measurement time can be shortened by
using them in the final measurement to the spectrums narrowed by the PK detection.
Conducted Emission Measurement
The conducted emission discharged through the power supply line is measured.
In this measurement, LISN* (Line Impedance Stabilization Network) device is needed.
The connection is shown in the figure below. Please refer to the manual of LISN for details of the
connection and notes.
1. Turn on the power of the 2651 after the connection.
2. Set the initial parameters of conducted emission measurement by pushing
. The setting parameters are as follows.
Center Frequency : 25.5 MHz
Frequency span : 50 MHz
RBW : 9 kHz
VBW : 1 MHz
Sweep time : 3 sec
Detection mode : Positive peak mode
3. Confirm whether the connection and the operation are correct by supplying the power to the EUT and
measuring.
4. Set the number of times of the sweep in the MAX HOLD mode by operating
.
5. Search the frequency of disturbance noise that exceeds the AV or QP limits by using the marker
function.
6. Set the center frequency to the point that exceeds the limits, the SPAN to 2 MHz and the SWEEP to
0.1 sec. And measure the frequency accurately.
Power Supply EUT
2651
LISN *
F6 SAVE/LOAD F2
F2 CALC
53
7. Moreover, measure the frequency detected in the above with QP or AV detection, then the SPAN is
200 kHz and the SWEEP is 10 sec.
Radiated Emission Measurement
The electric field strength of disturbance noise that EUT radiates in the air is measured.
1. Set the compensation data of the antenna beforehand.
Refer to “25.8 Writing original compensation data” for the details.
2. Turn on the power of the 2651 after connection.
3. Set the initial parameters of radiated emission measurement by pushing
. The setting parameters are as follows.
Center Frequency : 515 MHz
Frequency span : 1 GHz
RBW : 120 kHz
VBW : 1 MHz
Sweep time : 0.3 sec
Detection mode : Positive peak mode
4. Confirm whether the connection and the operation are correct by supplying the power to the EUT and
measuring.
5. Set the number of times of the sweep in the MAX HOLD mode by operating
.
6. Search the frequency of disturbance noise that exceeds the QP limits by using the marker function.
7. Set the center frequency to the point that exceeds the limits, the SPAN to 50MHz and the SWEEP to
30 msec. And measure the frequency accurately.
8. Moreover, measure the frequency detected in the above with QP detection, then the SPAN is 1MHz
and the SWEEP is 30 sec.
Antenna
2651
EUT
F6 SAVE/LOAD F3
F2
CALC
54
EMI standards (selected)
Frequency Quasi Peak Average
CISPR22 class A
Limits of co nducte d distur bance at
mains ports
0.15 MHz to 0.50 MHz
0.50 MHz to 30 MHz
79 dBuV
73 dBuV
CISPR22 class B
Limits of co nducte d distur bance at
mains ports
0.15 MHz to 0.50 MHz
0.50 MHz to 5 MHz
5 MHz to 30 MHz
66 to 56 dBuV
56 dBuV
60 dBuV
56 to 46 dBuV
46 dBuV
50 dBuV
Decreasing linearly with the logarithm of the
frequency
CISPR22 class A
Limits of ra diate d distur bance
30 MHz to 230 MHz
230 MHz to 1000 MHz
1000 MHz to 3000 MHz
3000 MHz to 6000 MHz
40 dBuV/m
47 dBuV/m
76 dBuV/m
80 dBuV/m
---
---
56 dBuV/m
60 dBuV/m
Measurement distance 10 m
CISPR22 class B
Limits of ra diate d distur bance
30 MHz to 230 MHz
230 MHz to 1000 MHz
1000 MHz to 3000 MHz
3000 MHz to 6000 MHz
30 dBuV/m
37 dBuV/m
70 dBuV/m
74 dBuV/m
---
---
50 dBuV/m
54 dBuV/m
Measurement distance 10 m
VCCI cl ass A
Limits of co nducte d distur bance at
mains ports
0.15 MHz to 0.50 MHz
0.50 MHz to 30 MHz
79 dBuV
73 dBuV
66 dBuV
60 dBuV
VCCI cl ass B
Limits of co nducte d distur bance at
mains ports
0.15 MHz to 0.50 MHz
0.50 MHz to 5 MHz
5 MHz to 30 MHz
66 to 56 dBuV
56 dBuV
60 dBuV
56 to 46 dBuV
46 dBuV
50 dBuV
Decreasing linearly with the logarithm of the
frequency.
VCCI class A
Limits of ra diate d distur bance
30 MHz to 230 MHz
230 MHz to 1000 MHz
40 dBuV/m
47 dBuV/m
---
---
Measurement distance 10 m
1000 MHz to 3000 MHz
3000 MHz to 6000 MHz
76 dBuV/m
80 dBuV/m
56 dBuV/m
60 dBuV/m
Measurement distance 3 m
VCCI cl ass B
Limits of ra diate d distur bance 30 MHz ~ 230 MHz
230 MHz ~ 1000 MHz 30 dBuV/m
37 dBuV/m ---
--- Measurement distance 10 m
1000 MHz to 3000 MHz
3000 MHz to 6000 MHz
70 dBuV/m
74 dBuV/m
50 dBuV/m
54 dBuV/m
Measurement distance 3 m
FCC part15 subpartB class A
Limits of co nducte d distur bance at
mains ports
0.15 MHz to 0.50 MHz
0.50 MHz to 30 MHz
79 dBuV
73 dBuV
66 dBuV
60 dBuV
FCC part15 subpartB class B
Limits of co nducte d distur bance at
mains ports
0.15 MHz to 0.50 MHz
0.50 MHz to 5 MHz
5 MHz to 30 MHz
66 to 56 dBuV
56 dBuV
60 dBuV
56 to 46 dBuV
46 dBuV
50 dBuV
Decreasing linearly with the logarithm of the
frequency.
FCC part15 subpartB class A
Limits of ra diate d distur bance 30 MHz to 88 MHz
88 MHz to 216 MHz
216 MHz to 960 MHz
over 960 MHz
39.1 dBuV/m
43.5 dBuV/m
46.4 dBuV/m
49.5 dBuV/m
---
---
---
---
Measurement distance 10 m
FCC part15 subpartB class B
Limits of ra diate d distur bance
30 MHz to 88 MHz
88 MHz to 216 MHz
216 MHz to 960 MHz
over 960 MHz
40 dBuV/m
43.5 dBuV/m
46 dBuV/m
54 dBuV/m
---
---
---
---
Measurement distance 3 m
(Note: Inform ation provided in this table serves as a reference only. B&K Precision is not liable f or any damage s due t o any mistakes in the table.)
21. Screen Control <DSPL>
When is pushed, the following function menu is displayed.
DSPL
55
21.1 Setting Screen Display Color
When is pushed, the color of screen display can be selected.
COLOR1 COLOR2 MONO
• COLOR1 : For normal use
• COLOR2 : For printing screen
• MONO : Monochrome
21.2 ON/OFF Switching of LCD Backlight
Use button to toggle the backlight ON or OFF.
21.3 Adjusting Brightness of LCD Backlight
Use to set the brightness. It can be set in the range of 0 to 100.
22. Tracking Generator Mode (2652A)
22.1 Specification of T.G. Function
Item
Specification
Frequency range
5 MHz to 3.3 GHz
Output Level
-10 dBm ± 1 dB @1 GHz(Fixed value)
Output flatness
±1.5 dB
Output impedance
50 Ω
Output VSWR
Less than 2.0
Output connector
N(J) connector
F1 F2 F3 F4 F5 F6
BRIGHT
80
COLOR
COLOR1
BACK LT
ON
F1
F2
F3
56
22.2 Description of I/O Connector
1) Input connector
N (J) connector
Input for an external signal
Make sure that the total power of input signals does not exceed +27 dBm.
2) Output connector
N (J) connector
It is an output terminal of Tracking Generator.
*Please set to “TG : OFF” to prevent the influence of the leak from the Tracking
Generator in case of disuse of the T.G. function..
22.3 ON/OFF Switching of T.G. Function
When is pushed, the following function menu is display.
1. When is pushed, T.G. MODE is set.
F1 F2 F3 F4 F5 F6
T.G.
MODE
MANUAL
SWEEP
AUTO ALL AUTO
DET
SMPL
TRIG
INT
SWEEP
F6
57
2. Each time is pressed, T.G. output is alternately switched to ON or OFF.
22.4 Normalizing Function
NORM ON: The input level is made flat to the red line on the screen.
1. When is pushed, the same function menu as the previous item is displayed.
2. When is pushed, TG. MODE is set.
3. Each time is pushed, the normalizing function is alternately switched to ON or OFF.
If the normalizing function is switched to ON, “NORM ON” is displayed on the screen.
* If the setting is changed as follows, the normalizing function is automatically turned off.
· The span is expanded. · The center frequency is changed beyond the range normalized.
( When SPAN is changed from FULL SPAN according to center frequency, it is turned off.)
· The magnetic field strength measurement is selected.
· The AUTO tuning is executed. · The power supply is turned off. · The presetting is executed.
* When the scale is 2 dB or 5 dB, the normalizing function does not operate correctly if the spectrum level is not
displayed at a proper position on the screen.
F1 F2 F3 F4 F5 F6
T.G.
ON
NORM
ON
F1
SWEEP
F6
F2
58
23. Storage/Print Screen Image <COPY>
The following function menu is displayed when is pushed.
23.1 Selection of Image Area
When is pushed, the image area to be stored or printed can be selected.
WHOLE : the whole screen image is stored or printed.
SPECT : only the spectrum display area is stored or printed.
23.2 Print on Printer
When pushing after connecting the printer (option), the area selected in 23.1 is printed.
23.3 Storage into USB Memory
When pushing after connecting USB memory (removable storage) to this unit, the area
selected in 23.1 is stored in USB memory in BMP (bit map) format. As for the file name, the number is
automatically set and incremented in the form “2650A_001.bmp”. In the case when some characters are
written in the label area, the file name will consist of it and the number put automatically such as
“LABEL001.bmp”. The folder “2650A_IMG” is automatically generated and these files are stored
inside.
To change the color of the display before print, refer to “21. Screen Control”.
F1 F2 F3 F4 F5 F6
AREA
WHOLE
PRINT
EXECT
Bmp → USB
COPY
MEM → USB
EXECT
COPY
F1
F2
F3
59
※ Once you disconnect, then reconnect the same or a different USB flash memory drive, the 2650A
series will not automatically recognize the new USB drive. After connecting the drive, you first must press the
Save/Load, followed by F5 key (USB) in order for the 2650A to "see" the new drive, then proceed with copying
data to the drive.
23.4 Transferring Internal Data to USB Memory in Lump Sum
When pushing after connecting USB memory (removable storage) to this unit, the data
stored in the internal memory with SAVE/LOAD function are transferred to USB memory in a lump
sum. During the transfer process, the screen on the lower right corner will display “Saving”. Wait until it
disappears, indicating that transfer is complete, before continuing operation. The folder “2650A_SaveAll”
is automatically generated and these files are stored inside.
※ Once you disconnect, then reconnect the same or a different USB flash memory drive, the 2650A
series will not automatically recognize the new USB drive. After connecting the drive, you must first press the
Save/Load key, followed by F5 key (USB) in order for the 2650A to "see" the new drive, then proceed as normal.
23.5 USB Printer (option)
The 2650A/2651 series enables a hard copy of the screen by connecting a USB printer (option) to USB A
plug with the included USB cable.
F5
60
* Turn on the power of the 2650A/2651 series unit first. After that, turn on the power of USB printer.
Otherwise, it will not work correctly.
23.6 USB Memory
USB memory can be used as a removable storage.
USB B plug
Printer
USB A plug
61
24. Utility Function <UTIL>
When is pushed, the following function menu is displayed.
Label Function : Enters the label menu for customizing filename.
Menu Off : Turns off menu and active area display.
Buzzer Setting : Sets the condition of the buzzer sound.
Clock Function Setting : Sets the built-in clock.
24.1 Label Function
When is pushed, the following function menu is displayed.
1. The kind of character to be written is selected with to .
012 : 0 to 9 (numeral)
abc : a to z (lower case alphabet)
ABC : A to Z (upper case alphabet)
@%* : Special characters ( ! ” # $ % & ’ ( ) * + , - . / : ; < = > ? @ [ ¥ ] ^ _ ` { Ω } µ)
*Note: Certain special characters may not be recognized or valid as a filename.
2. A block cursor will be display ed in the label display area.
By rotating , a number, small letter alphabet, capital letter alphabet or special character will
be indicated on the cursor position. Turn the knob until the desired label character is displayed.
3. When is pushed, the cursor position will move right by one character. And the previous character
is set.
F1 F2 F3 F4 F5 F6
012
abc
ABC
@%*
+
BACK SP
←
ENTER
→
F1 F2 F3 F4 F5 F6
LABEL
MENU
OFF
BUZZER
ALWAYS
CLOCK
CONFIG
UTIL
F1
F2
F3
F4
F1 UTIL
F1 F4
F1
F2
F3
F4
F6
62
4. When is pushed, the cursor position will move left by one character. To change the
character, turn the encoder. To delete, press F5 again. Characters previously entered can be deleted
by consecutively pushing F5.
5. When finished, press to exit the label menu.
24.2 Menu Off
By pushing , the display of the function menu and the active area can be turned off
temporarily.
24.3 Buzzer Setting
By pushing , the buzzer sound can be set to beep when keys are pressed or rotary encoder
is turned. The following three options are selectable by pressing F3 until the desired option is displayed.
OFF : The buzzer is off.
ALARM : The buzzer will sound off when an incorrect setting is made.
ALWAYS : The buzzer will sound whenever a key or the rotary encoder is
operated.
※ When the battery voltage becomes low during battery operation, the buzzer will sound.
(Even if OFF is selected, it will sound.)
24.4 Setting the Clock
When is pushed, the following function menu is displayed.
The year, month, day and time are displayed below the screen. (Refer to “4. Explanation of Screen”)
Set the year, month, day and time when 2650A/2651 series is used for the first time.
The time information is updated even if the power is turned off.
F1 F2 F3 F4 F5 F6
YEAR
08
MONTH
JUN
DATE
30
HOUR
23
MIN
50
ENTER
F5
F2
F3
F4 UTIL
UTIL
63
1. By rotating , the values for a selected parameter (choosen by pressing any button between F1 and F5)
can be changed.
2. Used to set the year. Two last digits of the y ear are displayed. This can be set from 00 to 99.
Used to set the month. This can be set from 1 to 12.
Used to set the date. This can be set from 1 to 31.
Used to set the hour. It is displayed in twenty-four hour format. Values can be set from 1 to 24.
Used to set the minute.
3. By pushing , the values which are set from item 2. above are saved. The values are updated only
when this key is pushed.
* The clock function of the 2650A/2651 series is driven by a dedicated LSI, and the power is supplied by a
built-in lithium battery.
F1
F2
F3
F4
F5
F6
64
25. USB Device Function
25.1 Outline
The 2650A/2651 series is equipped with two kinds of USB connecters; A and B plugs. The A plug is for USB
host and is connected to USB devices such as USB memory or printer. The B plug is for USB device and is
connected to USB host such as a personal computer. The device function is explained in this chapter.
As for the host function using USB A plug, refer to “23. Storage and print of screen image”.
25.2 How to Connect
When using the USB device, connect with the included USB cable as illustrated
25.3 Installation of Driver
An instrument specified USB driver is necessary in order to control the 2650A/2651 series with a PC via USB
interface, and should be installed in the PC prior to using the software. The driver along with instructions can be
downloaded from our website www.bkprecision.com. (Go to the Support section and select download). After the
downloaded file is unzipped, the 2650A/2651 series is connected to a PC with the USB cable and then the power
is turned on. The detection wizard for the USB driver starts on the PC screen the moment the power of the
2650A/2651 series is turned on, and install it following this wizard.
25.4 Sample Program
Please contact us at www.bkprecision.com to request a sample code which demonstrates how to write a
custom program using the commands in the following section.
USB A plug
USB B plug
65
25.5 Explanation of Command
* “CR(0D[HEX])+LF(0A[HEX])” is added to the end of every command. When the command is sent from PC,
2650A/2652A/2651 and 2658A return some responses, which include “OK” + CR + LF, “ERR” + CR + LF, or
“(response to command)” + CR + LF.
* By inputting “?” instead of “* *” for each command, the current setting parameters will be queried and a
response of the value will be received by the PC.
(Except for “ ---- Request” command and the command for inputting corrected data.)
1) Setting center frequency
Command : FREQ* * * * * * *
(* * * * * * *: Refer to “25.6 Input of frequency”)
Example: FREQ1.235G
Query: FREQ?
2) Request set marker
Command : FREQSETMK
* The center frequency is set according to the frequency of current marker position.
3) Setting frequency span
Command : SPAN* * * *
2650A, 2652A, 2651:
(* * * * = ZERO, 200K, 500K, 1M, 2M, 5M, 10M, 20M, 50M, 100M, 200M, 500M,
1G, 2G, FULL [unit : Hz])
2658A :
(* * * * = ZERO, 200K, 500K, 1M, 2M, 5M, 10M, 20M, 50M, 100M, 200M, 500M,
1G, 2G, 5G, FULL [unit : Hz])
Example: SPAN500K
Query: SP AN?
4) Setting reference level
Command : REF* * *
(* * * = -60 to 10 [1 step, unit : dBm] )
Example: REF 5
Query: REF?
5) Setting reference level unit
Command : UNIT * * * *
(* * * * = DBM, DBUV, DBMV, DBV)
Example: UNITDBUV
Command
Unit
DBM
dBm
DBUV
dBμV
DBMV
dBmV
DBV
dBV
* When the unit is other than dBm, convert
into dBm by using calculation formula in
“9.8 Relation between reference level and
ATT/AMP”.
66
6) Setting RBW
Command : RBW* * *
2650A, 2652A, 2658A :
( * * * * = 3K, 10K, 30K, 100K, 300K, 1M, 3M, AUTO, ALL [ unit : Hz ])
2651 :
( * * * * = 3K, 9K, 30K, 120K, 300K, 1M, 3M, AUTO, ALL [ unit : Hz ])
* ALL : The optimum RBW, VBW, and sweep time are set based on the frequency
span.
* AUTO : The optimum RBW is set based on the frequency span.
Example: RBW3M
Query: RBW?
7) Setting VBW
Command : VBW* * * *
( * * * * = 100, 300, 1K, 3K, 10K, 30K, 100K, 300K, 1M, AUTO, ALL [ unit : Hz ] )
* ALL : The optimum RBW, VBW and sweep time are set based on the frequency
span.
* AUTO : The optimum RBW is set based on the frequency span.
Example: VBW300
Query : VBW?
8) Selecting Measuring Function
Command : MEAS* * *
(* * * = CP, ACP, OBW, EF, MF,
FC, OFF)
Example: MEASOBW
(To change measuring function when in
a different measurement mode, set function OFF first by sending MEASOFF)
Query: MEAS?
9) Request measuring result
Command : MEASRES
* Example of measuring result
Channel power measurement ----- POW: - 25.5 dBm
Adjacent channel power measurement ----- L: - 47.7 dBc U: - 48.3 dBc
Occupied bandwidth measurement ----- C: 1.45 G W: 20.00 k
Frequency counter ----- FC: 2400.0000 M
* If the frequency counter is not installed, “Invalid for F/C” is responded.
* If the level of spectrum is low and unmeasurable, “Non Signal” is
responded.
Command
Measuring function
CP
Channel power measurement
ACP
Adjacent channel power measurement
OBW
Occupied bandwidth measurement
EF
Electric field strength measurement
MF
Magnetic f ield s trength measu rement
FC
Frequency counter (factory option)
OFF
OFF
67
10) Setting mode for channel power measurement
Command : CPMODE* * * * * * *
( * * * * * * * = TOTAL, BAN D)
Example: CPMODETOTAL
Query : CPMODE?
11) Setting zone center frequency for channel power measurement
Command : CPCNTR* * * * * * *
( * * * * * * *: = 0-500: screen position, center = 250)
Example: CPCNTR300
Query: CPCNTR?
12) Setting zone width for channel power measurement
Command : CPWIDTH* * * * * * *
( * * * * * * *: = 0-500: screen position, center = 250)
Example: CPWIDTH200
Query: CPWIDTH?
13) Setting mode for adjacent channel power measurement
Command : ACPMODE* * * * *
(* * * * * = TOTAL, BAND, PEAK)
Example: ACPMODEPEAK
Query: ACPMODE?
14) Setting band offset for adjacent channel power measurement
Command : ACPOFS* * * * * * *
( * * * * * * *: = 0-500: screen position, center = 250)
Example: ACPOFS100
Query: ACPOFS?
15) Setting bandwidth for adjacent channel power measurement
Command : ACPCHBW* * * * * * *
( * * * * * * *: = 0-500: screen position, center = 250)
Example: ACPCHBW30
Query: ACPCHBW?
16) Setting reference band center frequency for adjacent channel power measurement
Command : ACPREF* * * * * * *
Command
Mode
TOTAL
TOTAL (total power method)
BAND
BAND (in-band method)
PEAK
PEAK (reference level method)
Command
Mode
TOTAL
The sum of power on the screen is
measured.
BAND
The sum of power in the band specified is
measured.
68
( * * * * * * *: = 0-500: screen position, center = 250)
Example: ACPREF250
Query: ACPREF?
17) Setting reference bandwidth for adjacent channel power measurement
Command : ACPREFBW* * * * * * *
( * * * * * * *: = 0-500: screen position, center = 250)
Example: ACPREFBW50
Query: ACPREFBW?
18) Setting mode for occupied bandwidth measurement
Command : OBWMODE* *
( * * : N%, DB)
Example: OBWMODEN%
Query: OBWMODE?
19) Setting N% RATIO for occupied bandwidth measurement
Command : OBWRATIO* * *
(* * *: 80.0 to 99.9 [ 0.1 step , unit : %] )
Example: OBWRATIO85.6
Query: OBWRATIO?
20) Setting XdB DOWN for occupied bandwidth measurement
Command : OBWDB* * *
( * * *: 0.1 to 99.0 [ 0.1 step , unit : dB] )
Example: OBWDB45.3
Query: OBWDB?
21) Setting antenna for electric field strength measurement
Command : EFANT* * * *
( * * * *: M401 / M402 / M403
/ M404 / M405 / M406 / USER)
Example: EFANTM405
Query: EFANT?
22) Transfer user-compensation data for electric field strength measurement
Command : EFUSER* * * * *
(Refer to “25.8 Writing of Original Compensation Data” for the details.)
Example: EFUSER300M:0.0DBI,350M:1.0DBI
Command
Mode
N%
N% POWER mode
DB
XdB DOWN mode
Command
Antenna
M401
Setting data for M401
M402
Setting data for M402
M403
Setting data for M403
M404
Setting data for M404
M405
Setting data for M405
M406
Setting data for M406
USER
Setting data for user’s original antenna
69
23) Setting probe for magnetic field strength measurement
Command : MFPROBE* * * *
( * * * *: CP2S / USER)
Example: MFPROBECP2S
Query: MFPROBE?
24) Transfer user-compensation data for magnetic field strength measurement
Command : MFUSER* * * * *
(Refer to “25.8 Writing of Original Compensation Data” for the details.)
Example: MFUSER300M:0.0DBI,350M:1.0DBI
25) Start and Stop calculation function
Command : CALC* * *
(* * *: OFF / MAX / MIN / AVE / OVR)
Example: CALCMIN
Query: CALC?
26) Setting number of times to sweep for MAX HOLD
Command : MAXNO* * * *
( * * * * : 2 / 4 / 8 / 16 / 32 / 64 / 128 / 256 / 512 / 1024 / 0) * 0 = unlimited)
Example: MAXNO1024
Query: MAXNO?
27) Setting number of times to sweep for MIN HOLD
Command : MINNO* * * *
( * * * *: 2 / 4 / 8 / 16 / 32 / 64 / 128 / 256 / 512 / 1024 / 0) * 0 = unlimited)
Example: MINNO512
Query: MINNO?
28) Setting number of times to sweep for AVERAGE
Command : AVENO* * * *
( * * * *: 2 / 4 / 8 / 16 / 32 / 64 / 128 / 256 / 512 / 1024 / 0) * 0 = unlimited)
Example: AVENO16
Query: AVENO?
29) Setting number of times to sweep for OVERWRITE
Command : OVWNO* * * *
( * * * *: 2 / 4 / 8 / 16 / 32 / 64 / 128 / 256 / 512 / 1024 / 0) * 0 = unlimited)
Example: OVWNO128
Query: OVWNO?
Command
Calculation
OFF
OFF
MAX
MAX HOLD
MIN
MIN HOLD
AVR
AVERAGE
OVR
OVER WRITE
70
30) Setting display scale
Command : SCALE* *
( * *: 2 / 5 / 10 )
Example: SCALE10
Query: SCALE?
31) Setting sweep time
Command : SWEEP* * * *
( * * * * : 10M / 30M / 0.1S / 0.3S / 1S / 3S / 10S / 30S / AUTO / ALL)
Example: SWEEP0.1S
Query: SWEEP?
32) Setting detection mode
Command : DET* * *
( * * *: POS / NEG / SMP )
Example: DETPOS
Query: DET?
33) Setting trigger source
Command : TRG* * *
( * * *: INT / EXT)
Example: TRGEXT
Query: TRG?
34) Request AUTOTUNE
Command : AUTO * The response is returned after tuning.
35) Hold/Run function
Command : HOLD
Command : RUN
36) Request marker information
Command : MKRRES * Example of returned data : 1.42G -15dBm
Query: MKRRES?
Command
Sweep time
10M
10ms
30M
30ms
0.1S
0.1s
0.3S
0.3s
1S
1s
Command
Sweep time
3S
3s
10S
10s
30S
30s
AUTO
AUTO
ALL
ALL AUTO
Command
Display scale
2
2dB/div
5
5dB/div
10
10dB/div
Command
Trigger source
INT
Internal
EXT
External
Command
Detection mode
POS
Positive peak mode
NEG
Negative peak mode
SMP
Sample mode
QP
QP mode (only for MSA438E)
AVG
AVG mode (only for MSA438E)
71
37) Setting marker mode
Command : MKR* * * * *
( * * * * *: NORM / DELTA)
Example: MKRDELTA
Query: MKR?
38) Setting marker position by frequency
The position of active marker is set by frequency.
Command : NORMMKR* * * * * *
( * * * * * * *: Refer to “25.6 Input of Frequency”)
Query: NORMMKR?
39) Setting marker position by number of points on horizontal axis
The position of active marker is set by number of points on horizontal axis.
Command : MKRPOSI* * *
( * * *: 0 to 500 ; 0 = far left, 500 = far right)
Example: MKRPOSI40
40) Setting peak search mode
Command : PEAK* * * *
( * * * * : NORM / ZONE)
Example: PEAKZONE
Query: PEAK?
41) Request peak search
Command : PKSEARCH* *
( * *: 01 / 02 / 03 / 04 / 05 / 06
/ 07 / 08 / 09 / 10 / 11)
Example: PKSEARCH09
42) Setting zone center frequency for peak search
Command : PKCNTR* * * * * * *
( * * * * * * *: Refer to “25.6 Input of Frequency”)
Example: PKCNTR1.345G
Query: PKCNTR?
43) Setting zone width for peak search
Command : PKWIDTH* * * * * * *
( * * * * * * *: Refer to “25.6 Input of Frequency”)
Example: PKWIDTH256M
Query: PKWIDTH?
Command
Marker mode
NORM
Normal marker
DELTA
Delta marker
Command
Destination of marker
01
The maximum peak on the screen
02
The 2nd peak on the screen
· · ·
· · ·
11
The 11th peak on the screen
Command
Peak search mode
NORM
Normal peak search
ZONE
Zone peak search
72
44) Setting unit of marker
Command : CONV* * *
( * * *: DBM / W / DBV / V / DBUVM / VM)
Example: CONVDBUVM
Query: CONV?
45) Request print on printer
Command : PRTSIW
USB printer connected to USB A plug prints.
46) Request for transfer of spectrum
Command : SRS* * * *
( * * * *: CURR / 000 to 199)
Example: SRSCURR
*The number of the commands is given to the saved file.
*Refer to “25.7 Transfer of Spectrum Data” for the returned data.
47) Request for transfer of spectrum in USB memory
Command : SRSU* * * *
( * * * *: 000 to 199)
Example: SRSU111
* The number of the command is given to the saved file.
* Refer to “25.7 Transfer of Spectrum Data” for the returned data.
48) Request for transfer of spectrum data of 1001 points
Command : SRSF * Refer to “25.7 Transfer of Spectrum Data” for the returned
data.
49) Request preset
Command : PRESET
50) Setting remote control
Command : REMOTE* * *
( * * *: ON / OFF)
Example: REMOTEON
Query: REMOTE?
Command
Unit of marker
DBM
dBm
W
W
DBV
dBV
V
V
DBUVM
dBμV/m
VM
V/m
Command
Transferred spectrum
CURR
Current spectrum
000
Spectrum data of 000
· · ·
· · ·
199
Spectrum data of 199
Command
Transferred spectrum
000
Spectrum data of 000 in USB memory
· · ·
· · ·
199
Spectrum data of 199 in USB memory
Command
Remote control
ON
Operation by function key and encoder cannot be done.
Control the unit with USB commands.
OFF
Operation by function key and encoder can be done.
USB commands are available
73
* When the remote control is ON, “REMOTE” is displayed in the operating
information area on the screen. ( Refer to “4. Explanation of Screen” for the details.)
51) Single sweep
Command : CAPT * It sweeps only once and will be in a HOLD state.
52) Setting offset level
Command : OFFSET* * * * *
(* * * * *: -50.0 to 50.0 [0.1 step, unit: dB] )
Example: OFFSET-25.6
Query: OFFSET?
53) Setting input impedance
Command : IMP* *
(* * : 50 / 75)
Example: IMP75
Query: IMP?
* When the input impedance is selected, the offset level is set as described above.
54) Clearing spectrum data and parameter
Command : MCLR* * *
( * * *: ALL / 000 to 199)
Example: MCLRWALL
* For internal memory only .
55) Setting character for label
Command : LBL* * *
( * * *: The number of characters is 16 or less)
Example: LBLsample_spectrum
Query: LBL?
56) Setting clock
Command : CLC * * * * * * * *
( * * * * * * * * : aabbccdd ; aa: two last digits of year, bb: month (01 to 12), cc: hour
(00 to 23), dd: minute (00 to 59)
Example: CLC0902111103
Query: CLC?
Command
Offset level
50
Offset level is set to 0dB.
75
Offset level is set to 5.7dB.
Command
Cleared data
ALL
All of spectrum data
000
Spectrum data of 000
· · ·
· · ·
199
Spectrum data of 199
74
57) Setting tracking generator
Command : TG* * *
( * * *: ON / OFF)
Example: TGON
Query: TG?
58) Setting normalizing function
Command : NORM* * *
( * * *: ON / OFF)
Example: NORMOFF
Query: NORM?
59) Save/Load function
Command : DEV***
( * * *: MEN/USB)
60) Request On/Off of Offset Level
Command: OFFSETOF?
*Returned data: ON or OFF.
61) Request firmware version
Command: VER
25.6 Input of Frequency
The frequency is input as follows.
* * * * * * * : 0.0k to 999.9k (0.1 step, unit: Hz)
: 0.0M to 999.9M (0.1 step, unit: Hz)
: 0.0000G to 3.3G (0.0001 step, unit: Hz) ---- 2650A, 2652A, 2651
: 0.0000G to 8.5G (0.0001 step, unit: Hz) ---- 2658A
* The offset frequency and the zone width can be input only in the range decided by the center frequency
and frequency span. If the value out of the range is input, an error occurs.
* The offset frequency and the zone width change when the frequency span is changed.
25.7 Transfer of Spectrum Data
75
The spectrum data outputs as a numeric string separated by commas “,”. [**.**, **.**, ……, **.**]
The unit is dBm, and it is available up to two decimal places.
• Description
String Explanation Example
SPECT
The data which follows the string "SPECT" is the spectrum data.
SPECT
* *, * *, · · ·
It is the spectrum data. This string consists of all data points
separated by a comma “,” after each data value, and the string
can have a total of ten data points per line. For example,
transferring spectrum data of 1001 points require a total of 101
lines.
-102.01, -102.03, · · ·, · · ·,
-110.12,
25.8 Writing of Original Compensation Data
When antennas or probes other than the option is used in electric field strength measurement or magnetic field
strength measurement, it is necessary to write each original compensation data into the unit.
Please write the data into the unit according to the following description.
There are two methods for writing. Either use the 2650A PC Software or write a custom program using interface
commands.
1) Preparation items
* Windows PC (with USB interface) [The writing can be done with 2650A/2651 series unit only.]
* 2650A PC software (Refer to 3) below)
2) Example of writing data
As an example, the compensation data (antenna gain) of antenna M405 and the compensation data
(compensation coefficient) of magnetic field probe CP-2S are shown below.
* Compensation data (antenna gain) of antenna M405
Frequency
300MHz
350MHz
400MHz
450MHz
500MHz
Antenna gain
0.0dBi
1.0dBi
1.4dBi
1.4dBi
0.0dBi
* Compensation data (compensation coefficient) of magnetic field probe CP-2S
Frequency
10MHz
100MHz
1GHz
2GHz
3GHz
Compensation
coefficient 86.7dB 69.2dB 50.7dB 44.9dB 40.1dB
* Data of ten points or less can be written. 0Hz is not valid as a data point.
3) Using 2650A PC software for writing
1. Create the text file of compensation data.
76
Create a new text file, and open it with a text editor.
Write the frequency and compensation data in the following format.
* Format
“frequency”: ”compensation data”, “frequency”: “compensation data”, · · ·
Example of M405
300M:0.0DBI,350M:1.0DBI,400M:1.4DBI,450M:1.4DBI,500M:0.0DBI
* Write the unit with a capital letter as it is case sensitive. G (GHz) is also available.
2. Write the text file into the unit with 2650A PC software.
Connect the personal computer to 2650A series with the included USB cable and turn on the power of
the 2650A/2651 series.
From the upper menu of the PC software,
select [File] → [Write E/F User Data] in case of electric field strength measurement, or
select [File] → [Write M/F User Data] in case of magnetic field strength measurement.
When the text file created beforehand is selected, the data is written.
* Install the specified USB driver in the personal computer prior to using the PC software.
(Refer to “25.3 Installation of Driver”)
4) Method of using original program for writing
1. Prepare the USB communication software.
Connect the personal computer to the 2650A/2651 series with the included USB cable and turn on the
power of the 2650A/2651 series.
2. Write the data into the unit.
Transfer the data in the following format with the USB communication software.
* Format
In case of electric field strength measurement;
EFUSER “frequency”: ”compensation data”, “frequency”: “compensation data”, · · ·
In case of magnetic field strength measurement;
MFUSER “frequency”: ”compensation data”, “frequency”: “compensation data”, · · ·
Example of CP-2S
MFUSER10M:86.7DB,100M:69.2DB,1G:50.7DB,2G:44.9DB,3G:40.1DB
* Write the unit with a capital letter as it is case sensitive. G (GHz) is also available.
3. When the writing ends correctly, “OK” is returned.
5) How to use
Set the measuring function of the 2650A/2651 series to electric field strength measurement mode or
magnetic field strength measurement mode.
By pushing [MEAS] → [E/F ANT], electric field strength measurement mode is set.
By pushing [MEAS] → [M/F PROBE], magnetic field strength measurement mode is set.
Select “USER” from antennas or probes on the display by pushing [F1].
Then, the measurement by the written data will begin.
* The written data remains even if power is turned off.
* The measuring mode returns to a usual measurement mode when turning off power.
6) About antenna gain
77
In the following context, the antenna gain means an absolute gain.
When the antenna gain is a relative gain, it can change into an absolute gain by adding +2.15 dB.
Absolute gain [dBi] = Relative gain [dBd] + 2.15 dB
As a reference, the conversion formula to electric field strength is indicated below:
E = √(480π2 x Pa) / (Ga x λ2))
E: Electric field strength [V/m]
Pa: Received electric power [W]
Ga: Antenna gain [times] = 10(antenna gain [dBi] ÷ 10)
λ : Wavelength [m] = (3 × 108) ÷ frequency [H z]
26. Option
Dipole antenna M401 to M406 Connector : N (P)
Refer to “19.4 Electric Field Strength Measurement” for the
details.
Magnetic field probe CP-2S.
Refer to “19.5 Magnetic Field Strength Measurement” for the
details.
USB printer With AC adaptor and one roll of paper
Refer to “23. Storage / Print of Screen Image” for the details.
Roll printer (10 rolls) For USB printer
Specification
Frequency range
:
10 MHz to 3 GHz
Space resolution
:
approx.0.25 mm (depending on objects)
Dimensions
:
outside 12 φ ×135 mm
probe tip 2 mm(W)×1 mm(T)
Connectors
:
SMA(P)
Specification
Printing method
:
Thermal line dot method
Paper
:
80 mm width thermal paper
Power source
:
internal : AA-sized alkaline battery (4 pcs)
external : 7.5 VDC/3 A (dedicated AC
adapter)
Dimensions
:
134(W)×60(H)×180(D) mm
Weight
:
approx.450 g (mainframe only)
78
27. Basic Performance Test
(2650A/2651/2652A/2658A)
To keep the quality of the unit, regular performance testing is recommended. This section describes a method and
specification of basic performance testing. If a problem is found in the results of basic performance testing, or formal
testing is required,please contact B&K Precision.
27.1 Frequency Characteristics
Adjust the output level of the spectrum analyzer calibration unit (thereafter, “calibration unit”) so that the displayed
power value is -15dBm at each frequency for this unit, and measure the absolute value with a receiver for
calibration (microwave power meter, etc.).
Setting of 2650A/2652A/2651/2658A
Specifications Measurement
value Judgment
Center frequency
Frequency span
RBW *1)
50 kHz
200 kHz
10 kHz
Within Reference±2.6 dB±1dot
100 kHz
200 kHz
30 kHz
Within Reference±2.6 dB±1dot
1 MHz 2 MHz 100 kHz Within Reference±2.6 dB±1dot
10 MHz
10 MHz
3 MHz
Within Reference±2.0 dB±1dot
100 MHz
10 MHz
3 MHz
Reference
1 GHz
10 MHz
3 MHz
Within Reference±1.0 dB±1dot
2 GHz
10 MHz
3 MHz
Within Reference±1.0 dB±1dot
3.3 GHz
10 MHz
3 MHz
Within Reference±1.0 dB±1dot
6.2 GHz *2) 10 MHz 3 MHz Within Reference±1.0 dB±1dot
8.5 GHz *2) 10 MHz 3 MHz Within Reference±1.0 dB±1dot
*1) RBW switching error is included at RBW other than 3 MHz. *2) 2658A only
· Setting of 2650A/2652A/2651/2658A · Setting of calibration unit
Reference level
:
-15 dBm
Frequency
:
Same as a center frequency of
VBW
:
1 MHz
2650A/2652A/2651/2658A.
Sweep time
:
1 s
Detection mode
:
SMPL
Output power
:
Adjust the power indication of
2650A/2652A/2651/2658A to -15
dBm.
Display scale
:
2 dB/div
Spectrum analyzer calibration unit
Receiver for calibration
2650A/2651 series
[Connection diagram]
79
27.2 Accuracy of Reference Level
Adjust the output level of the calibration unit so that the displayed value of this unit is the 0th div from
the top, and calibrate the absolute value with the receiver for calibration (microwave power meter, etc.).
Setting of 2650A/2652A/2651/2658A Specifications Measurement value Judgment
Reference level
+10 dBm
within ±1.4 dB±1dot
0 dBm
within ±1.4 dB±1dot
-10 dBm within ±1.4 dB±1dot
-15 dBm
within ±0.8 dB±1dot
-20 dBm
within ±1.4 dB±1dot
-30 dBm
within ±1.4 dB±1dot
-40 dBm
within ±1.4 dB±1dot
* Input attenuator switching error is included at the reference level other than -15 dBm.
·Setting of 2650A/2652A/2651/2658A · Setting of calibration unit
Center frequency
:
100 MHz
Frequency
:
100 MHz
Frequency span
:
10 MHz
Output power
:
Adjust it so that the indicated
RBW
:
3 MHz
value of
2650A/2652A/2651/2658A
VBW
:
1 MHz
is at the 0th div from the top.
Sweep time : 1 s
Detection mode
:
SMPL
Display scale
:
2 dB/div
27.3 Display Accuracy of Center Fre quency
Measure the frequency with the peak search function of 2650A/2652A/2651/2658A.
Setting of 2650A/2652A/2651/2658A
Specifications
Measurement
value
Center
frequency
Judgment
Frequency
span
Center frequency Frequency span RBW
100 MHz
200 kHz
3 kHz
within ±50 kHz±1dot
±RBW x 6%
100 MHz
10 MHz
30 kHz
100 MHz
20 MHz
100 kHz
within ±360 kHz±1dot
±RBW x 20%
100 MHz
200 MHz
100 kHz
1 GHz
20 MHz
100 kHz
2 GHz 20 MHz 100 kHz
3.3 GHz *1
20 MHz
100 kHz
6.1 GHz *2
20 MHz
100 kHz
8.5 GHz *2
20 MHz
100 kHz
*1 2650A/2652A/2651 only *2 2658A only
· Setting of 2650A/2652A/2651/2658A · Setting of calibration unit
Reference level
:
-15 dBm
Frequency
:
Same as a center frequency of
2650A/2652A/2651/2658A.
VBW
:
AUTO
Sweep time
:
1 s
Output power
:
-15 dBm
Detection mode
:
SMPL
* However, calibrate the signal generator in advance.
Display scale
:
10 dB/div
80
27.4 Display Accuracy of Frequency Span
Adjust the frequency of the calibration equipment so that the peaks are at the positions of f1 and f9, and
measure the frequencies of f1 and f9. Calculate from f1 and f9 the display accuracy of the frequency span.
*1 2650A/2652A/2651 only *2 2658A only
· Setting of 2650A/2652A/2651/2658A · Setting of calibration unit
Reference level
:
-15 dBm
Frequency
:
Adjust it to the positions of f
1
VBW
:
AUTO
and f9.
Sweep time
:
1 s
Output power
:
-15 dBm
Detection mode
:
SMPL
Display scale
:
10 dB/div
27.5 Linearity of A mplitude A xis
Adjust the level of the calibration unit so that the peak is at the top of the amplitude axis (0th div), and regard the
point set at that time as the reference. Gradually lower the output, starting from the reference, and measure the
amplitude value of 2650A/2652A/2651/2658A.
Setting of
2650A/2652A/2651/2658A Output of calibration unit Specifications Measurement
value Judgment
Display scales
10 dB/div
XdBm (adjust it to the 0th div)
Reference(-15 dBm)
X-10 dBm Within -25 dBm±0.8 dB±1dot
5 dB/div XdBm (adjust it to the 0th div) Reference(-15 dBm)
X-5 dBm Within -20 dBm±0.4 dB±1dot
2 dB/div
X
dBm (adjust it to the 0th div) Reference(-15 dBm)
X-2 dB Within -17 dBm±0.2 dB±1dot
·Setting of 2650A/2652A/2651/2658A · Setting of calibration unit
Setting of 2650A/2652A/2651/2658A Specifications f1
Measurement
value
f9
Measurement
value (f9 - f1) Judgment
Frequency span
Center
Frequency RBW
200 kHz 100 MHz 3 kHz within ±180 kHz ×3% ±1dot
10 MHz 100 MHz 100 kHz within ±8 MHz ×3%±1dot
20 MHz
100 MHz
300 kHz
within ±18 MHz ×3%±1dot
200 MHz 100 MHz 3 MHz within ±180 MHz ×3%±1dot
500 MHz 1 GHz 3 MHz within ±400 MHz ×3%±1dot
2 GHz
1 GHz
3 MHz
within ±1.8 GHz ×3%±1dot
FULL(3.3 GHz)*1 1.65 GHz 3 MHz within ±2.64GHz ×3%±1dot
2 GHz *2 4.8 GHz 3 MHz within ±1.8 GHz ×3%±1dot
2 GHz *2
7.4 GHz
3 MHz
within ±1.8 GHz ×3%±1dot
FULL(8.5 GHz)*2 4.25 GHz 3 MHz within ±7.65 GHz ×3%±1dot
* f
1
:
1st div from the left on the spe ctrum dis play
f
9
: 9th div from the left on the spe ctrum dis play
81
Center frequency
:
100 MHz
Frequency
:
100 MHz
Reference level
:
-15 dBm
Frequency span
:
10 MHz
RBW
:
3 MHz
VBW
:
1 MHz
Sweep time
:
1 s
Detection mode SMPL
82
SERVICE INFORMATION
Warran t y S erv i ce : Please g o the suppor t a nd se rv ice secti on on our website www.bkprecision.com to obta i n a RMA #. Re tur n the pr oduct in
the origi nal packag i ng with pr oof of purc hase to the addr e ss be l ow . C learly s tat e on the RMA the pe rf orma nce pr oblem a nd retur n a ny lea ds ,
probes, connec tor s and a cces s ories t hat y ou are using with the dev ic e .
Non-Warranty Service: Plea se go the support a nd s e rvice sec tion on our webs i te www.bkprecision.com to obta i n a RMA #. R etur n the
product in t he orig inal pac kag ing t o the addres s be low. C lea rly state on the R MA the perf orma nce pr oblem and re t urn any lea ds, pr obe s ,
connectors a nd ac cess ori es t ha t you ar e usi ng with the dev ic e . C ustom ers not on a n ope n a cc ount m us t i nclude pay m ent in t he form of a m oney
order or cre dit ca r d. For the m os t curre nt r e pair cha rges pl ease refer to t he serv ice and s upport s ect ion on our webs i te.
Return all mer c handis e to B&K Pr ec ision C orp. w ith pre-paid shipping. The flat-rate repair charge for Non-Warranty Servic e does not in clude
return shippi ng . Re tur n s hipping to locations in N ort h Amer ica is include d f or Warr a nty Serv ice . For ove rnig ht s hi pment s and non-North
American s hipping fees please contact B&K Precision Corp.
B&K Precision Corp.
22820 Savi Ranch Parkw ay
Yorba L inda, C A 92887
www.bkprecision.com
714-921-9095
Include with the returned instrument your complete return shipping address, contact name, phone number and description of problem.
LIMITED THREE-YEAR WA RRANTY
B&K Precisi on C orp. wa r rants t o the or iginal pur c has er tha t its pr odu cts and the c om pone nt par ts thereof, will be free f rom defects in
workmanship a nd m ate r ials for a peri od of three years from date of purchase.
B&K Precision Corp. wil l, w i thout cha rge, re pair or re plac e , at i ts op ti on, defe cti ve produc t or com pon e nt parts. R etur ne d produc t m ust be
accompanied by proof of the purchase date in the form of a sales receipt.
To obtain war ranty c ove rage in t he U. S.A ., this pr oduc t m ust be regi ste red by com pleti ng a war ranty re gi stra t ion f orm on our we bs ite
www.bkprecision.com wit hin f if tee n (15) day s of pur c hase.
Exclusions: This warranty does not apply in the event of misuse or abuse of the product or as a result of unauthorized alterations or
repairs. The warranty is void if the serial number is altered, defaced or removed.
B&K Precisi on C orp. s hall not be l iable f or any c onseque nt ia l damages , inc l uding w it hout l im ita tion dam ages resulting from loss of use. Some
states do not a ll ow limi tati ons of inc i denta l or conse que nt ial dam age s . So t he above lim itat ion or ex c lusion m ay not a pply to you.
This warranty gives you specific rights and you may have other rights, which vary from state-to-state.
B&K Precision Corp.
22820 Savi Ranch Parkw ay
Yorba L inda, C A 92887
www.bkprecision.com
714-921-9095
83
22820 Savi Ranch Parkway
Yorba Linda, CA 92887
www.bkprecision.com
© 2009 B&K Precision Corp.
Printed in Japan
