RIGOL
Application Note
RX1000 RF Demo Kit
Sep. 2013
RIGOL Technologies, Inc.
RIGOL
RX1000 RF Demo Kit Application Note
I
Guaranty and Declaration
Copyright
© 2013 RIGOL Technologies, Inc. All Rights Reserved.
Trademark Information
RIGOL is a regist e red tradem ark of RIGOL Technol o gie s, In c.
Publication Number
APG02101-1110
Notices
RIGOL products are protected by pate nt law in and outside of P.R.C.
RIGOL reserves the right to modify or change parts of or all the specifications and pricing
policies at company’s sole decision.
Inform at ion in this publication replaces all previ ously corresponding material .
RIGOL shall not be lia ble for losses ca used by either incident al or consequential i n connection
with the furnishing, use or performance of this manual as well as any info rm ation contained.
Any part of this document is f orbidden to be copied or photocopied or rea rranged without prior
written appro val of RIGOL.
Product Certificati on
RIGOL guar ant ee s thi s product confo rms to t he national and in dust rial st anda rds in China as well
as the ISO9001:2008 standard and the ISO14001:2004 standard. Other international standard
conforman ce certification is in progress.
Contact Us
If you have any problem or requirement when using our products or this manual, please contact
RIGOL.
E-mail: service@rigol.com
Websites: www.rigol.com
RIGOL
RX1000 RF Demo Kit Application Note
II
Contents
Guaranty and Declaration ............................................................................................ I
Product Overview ........................................................................................................ 1
Hardware Modules ...................................................................................................... 2
To Control RX1000 Using PC Software ........................................................................ 3
Software Inst allat ion ..................................................................................................... 3
System and Installation Requirements ...................................................................... 3
Installation Procedures ........................................................................................... 3
To Connect RX1000 ....................................................................................................... 5
To Start the Software .................................................................................................... 7
In terface Layo ut ........................................................................................................... 8
To Control RX1000 Using DSG3000 ........................................................................... 10
Typical Applications .................................................................................................. 11
To Test the frequency conversion function of RX1000 ..................................................... 11
To Test the Band-pass Filter Characte risti cs ................................................................... 12
The Influence of the Performance of Amplifier on the System ......................................... 13
The Influence of the Performance of Filter on the System ............................................... 15
Specifications ............................................................................................................ 16
Accessories ............................................................................................................... 18
RIGOL
RX1000 RF Demo Kit Application Note
1
Product Overview
RX1000 RF Demo Kit (hereinafter referred to as RX1000) is a signal receiver kit released by RIGOL
to demonstrate the DSG3000 series RF si gnal gene rator.
RX1000 features:
Energized by USB.
Connected with PC for control through software.
When connected with DSG3000, it can be controlled via the built-in control interface of
DSG3000 without using the PC.
The frequency of the DSG3000 output signal is conve rted to the down-frequency by “switches”.
The down-frequency si gnal can be connected t o the input port of the s pect rum analyzer or the
oscilloscope to be used for the learning, operation and demonstration.
Provide 10 MHz reference signal output for easy clock synchronization with other devices.
Provide 500 MHz and 1 GHz local oscillator signal outputs.
Modular circuit design; provide interfaces for users to make separate measurement of any
component; enable to replace any component.
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RX1000 RF Demo Kit Application Note
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Hardware Modules
The appearance of RX1000 is as shown in Figure 1. The hardware modules of RX1000 include the
filter, amplifier, mixer and VGA. The schematic diagram is as shown in Figure 2.
Figure 1 RX1000 Appearance
USB port: used to connect the PC or RF signal generator (provide power for the modules and
control the modules).
J1, J2, J4, J6, J8: input RF signal.
J3, J5, J7, J9, J10: signal output terminal.
J11: output 500 MHz local oscillator signal.
J12: input external local oscillator signal.
J13: output 1 GHz local os cillator signal.
J14: output 10 MHz reference signal.
Low Noise
Amplifier
Filter
Filter
Mixer
Synthesizer
Variable Gain
Amplifier
Figure 2 RX1000 Schematic Diagram
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RX1000 RF Demo Kit Application Note
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To Control RX1000 Using PC Software
Software Installation
When using RX1000 with the PC, you have to install the PC control software of RX1000.
System and Installation Requirements
1. Hardware Configuration Requirements
Pro ce s s or: 1 GHz a n d great e r
Memory: 500 MB and greater
Display: 1024×768 or higher resolution
Hard Disk: 200 MB and great er
2. Running Environment
Operation System: Windows XP (32-bit), Windows 7 (32-bit), Wi ndows Vista (32-bit)
PC administrator privileges: use the administrator account to log into the PC
The RIGOL common PC software (Ultra Sigma 00.01.05.05 or higher version) has been
installed.
Installa ti on Procedures
1. Before installing the software, install Ultr a Sig ma 00.01.05.05 or higher versio n. For the
installation procedu res, refer to the relate d manual of Ultra Sigma .
2. RIGOL pro vides the insta llation pa ckage (in the C D in t he pr oduct pa ckage) of the PC contr ol
softw are of RX1000. Dou ble-click the RX1000 setup.exe file to enter the int erface as sh own
in the figure below and follow the instructions to finish the installation.
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RX1000 RF Demo Kit Application Note
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3. Click “Next” and start to install the sof tware.
4. The installation process finishes as shown in the figure below. At this point, you have
successfully installed the PC control software of RX1000 and the shortcut named “RX1000 RF
Demo Ki t” is displayed on the desktop.
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RX1000 RF Demo Kit Application Note
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To Connect RX1000
Connect RX1000 and the PC usin g USB cable. At this point, the “New Hardware Wizard” is displayed
on the PC. Please install the “USB Test and Measurement Device” driver f ollowing the instructions in
the wizard.
The steps are as follows:
1． Select “Install from a list or specific location (Advanced)” and click “Next”;
2． Select “Don’t search. I will choose the driver to install” and click “Next”;
3． Select “USB Test and Measurement Device” and click “Next”;
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RX1000 RF Demo Kit Application Note
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4． Click “Finish” after the installation is finished.
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RX1000 RF Demo Kit Application Note
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To Start the Software
After t he PC c ontrol s oftwa re of RX10 00 is successfu lly installed, you can start the softw are via
the following two methods.
1. Via the [Start] menu or the shortcut on the desktop
Click [Start] [All Programs] [RIGOL Technologies, Inc] [RX1000 RF Demo
Kit] [RX1000 RF Demo Kit] or do ubl e-click the shortcut named “RX100 0 RF D emo Ki t”
on the desktop to enter the software interface.
Note: the co mmunication between the software and RX1000 cannot be built automatically via
this method (even when the RX1000 is connected to the PC). The connection status is
when the s oftware is sta rted. You need to buil d the commu nication betwee n the software and
RX1000 manually by referring to the introductions in “Interface Layout”.
2. Via Ultr a Sigma
Connect RX1000 with the PC using the USB cable provided with the accessories;
Start the Ultra Sigma and search for the RX1000 connected;
As sh own i n th e figure bel ow , right-click the resour ce name of the RX10 00 connected and
select “RX1000 RF Demo Kit” to enter the software interface.
Figure 3 Start the Software via Ultra Sigma
Note: the communication between the software and RX1000 can be built automatically via
this method (make sure that your PC has been connected with RX1000 ). The connection status
is when the software is started.
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RX1000 RF Demo Kit Application Note
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Interface Layout
The interface of the P C control soft ware of RX1000 is a s shown i n t h e figure below.
Resource Name Connection Status
Figure 4 Interface Layout of the PC Control Software
1. Resource Name and Connection Status
When starting the software via Ultra Sigma, the software displays the resource name
automatically and the dropdown box is grayed out and disabled. At this point, the connection
status is denoting that the connection is successful. When starting the software via the
[Start] menu or shortcut on the desktop, the conne ction st atus is ; you need to click the
dropdown box and select the resource name of the RX1000 connected to build the
communication between the software and RX1000 manually. It takes some time (several
seconds) for the software to search the resources and please wait for the resource list patiently.
When multiple devices are connected to the PC, the resource names of all the devices will be
displayed in the dropdown list and please select the resource name started with
USB0::0x9906::0x2004 (all the resource names of R X1000 start with this character string).
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RX1000 RF Demo Kit Application Note
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2. Con tr ol Sw it c h es
After th e soft ware and RX1 000 are succ e ssful ly connected, you can control RX1000 via the
software interface. There are six switches (Sw1, Sw2, Sw3, Sw4, Sw5 and Sw6) on the
software interface and you can click the corresponding switch to control its state.
Sw1: when J12 is connected, connect the external local oscillator signal input from the J12
terminal; when the J12 is disconnected, connect t he internal 1 GHz local oscill ator signal.
Sw2: when J2 is connected, connect the signal input from the J2 terminal; when J2 is
disconnected, a mplify the signal passi ng through the band-pass filter or output it from the
J3 terminal.
Sw3: when J3 and J4 are connected, output signal from J3 or connect the signal input
from the J4 terminal; whe n J3 and J4 a re disconnected, a mplify the signal passing through
the band -pass filtering or the signal input from the J2 terminal.
Sw4: when J5 and J6 are connected, output signal from J5 or connect the signal input
from the J6 terminal; when J5 and J6 are disconnected, perform mixing on the s ignal
passing through the amplifier or the signal input from J4 terminal.
Sw5: when J7 and J8 are connected, output signal from J7 or connect the signal input
from the J8 ter minal; whe n J7 an d J 8 are disconnected, perfor m low-pass filtering on the
signal passing through the mixer or the signal input from the J6 terminal.
Sw6: when J9 is con nected, output signal fr om J9; when J9 is disconnected, adjust the
amplitude of the signal pass ing through the low -pas s filter or the signal input f rom the J8
terminal and then output it via J10.
3. Adjust VGA
Use the mouse to click the text box under the VGA on the software interface and modify the
value (gain code) in it. At this point, you can adjust t he amplitude of the si gnal output from the
J10 terminal (output voltage gain ). The gain code of VGA can be set from 0 to 255.
Output linear voltage gain (
Av
) and gain code (
Gc
) satisfy the following relationship:
))1(1( MSBPGVeinierGcAv ×−+××=
Therein,
=0.055744 V/V;
PG
=7.079458 V/V;
When
Gc
is from 0 to 127 (low gai n mode),
MSB
=0;
When
Gc
is from 128 to 255 (high g a i n m ode) ,
MSB
=1.
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RX1000 RF Demo Kit Application Note
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To Control RX1000 Using DSG3000
When using RX1000 with the DSG3000 series, you can control RX1000 using the built-in control
interface of DSG3000 without using the PC and PC control software.
1. Connect RX1000 and DSG3000 using the USB cable provided with the accessories.
2. Press at the front panel of the DSG3000 and press RX1000 to open the c ontrol
interface as shown in the figure below.
Figure 5 Built-in RX1000 Control Int erf a ce of DS G3 000
3. You can use the menu at the right to control the state of the six switches respectively. In
addition, y ou can als o use the VGA menu to a djust the a mplitude of the signal output from the
J1 0 t erminal. For more information, please refer to “Adjust VGA”.
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RX1000 RF Demo Kit Application Note
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Typical Applications
To Test the frequency conversion function of RX1000
Operation Steps:
1. Connect the DSG3 000 seri es RF signa l gen er ator and RX1000 us ing USB cable; connect the J1
terminal of the RX1000 and the RF output interface of the DSG3000 usin g an N-SMA cable ;
connect the J10 terminal of the RX1000 and the RF input interface of the spectrum anal yzer
using another N-SMA cable a s shown in Figure 6.
Explanation: when using the PC software to control RX1000, you can connect the PC and
RX1000 using USB cable . Then accord in g t o the above metho d t o connect the RF signal
generator, the RX1000 and the spectrum analyzer using N-SMA cables.
2. Configure the status of each switch via the built-in RX1000 control interface of DSG3000.
Switch Control Status Switch Status
Sw1 Disconnect J12 and connect J13 On
Sw2 Disconnect J2 Off
Sw3 Disconnect J3 and J4 Off
Sw4 Disconnect J5 and J6 Off
Sw5 Disconnect J7 and J8 Off
Sw6 Disconnect J9 Off
3. Output a 950 MHz signal from the RF output interface of the DSG3000 and input the signal
from the J1 t ermi n al of the RX1000.
4. Set the measurement parameters on the spectrum analyzer to get a 50 MHz signal.
Figure 6 Test the frequency conversion function of the RX1000
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RX1000 RF Demo Kit Application Note
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To Test the Band-pass Filter Characteristics
Operation Steps:
1. Connect the DSG3 000 seri es RF signa l gen er ator and RX1000 us ing USB cable ; connect the J1
terminal of the RX1000 and the RF output interface of the DSG3000 using an N-SMA cable;
connect the J3 terminal of the RX1000 and the RF input interface of the spectrum analyzer
using another N-SMA cable as s hown in Figure 7.
Explanation: when using the PC software to control RX1000, you can connect the PC and
RX1000 using USB cable. Then according to the above method to connect the RF signal
generator, the RX1000 and the spectrum analyzer using N-SMA cables.
2. Configure the status of each switch via the built-in RX1000 control interface of DSG3000.
Switch Control Status Switch Status
Sw1 Ignore Ignore
Sw2 Disconnect J2 Off
Sw3 Connect J3 and J4 On
Sw4 Ignore Ignore
Sw5 Ignore Ignore
Sw6 Ignore Ignore
3. Configure the parameters (e.g. enable the RF output, set the RF f requency or amplitude and
so on) on the RF signal generator. Output this signal from the RF output interface of the
DSG3000 and then input the signal from the J1 terminal of the RX1000.
4. Set the measurement parameters on the spectrum analyzer to get the measurement results.
Figure 7 Test the Band-pass Filter Characteristi cs
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RX1000 RF Demo Kit Application Note
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The Influence of the Performance of Amplifier on the
System
Operation steps:
1. Connect the DSG3 000 seri es RF signa l gen er ator and RX1000 us ing USB cable; connect the J1
terminal of the RX1000 and the RF output interface of the DSG3000 using an N-SMA cabl e;
connect the J10 terminal of the RX1000 and the RF input interface of the sp ectrum anal yzer
using another N-S MA ca bl e ; c onne ct t he amplifier to J3 and J 4 using two SMA-SMA cables (to
replace the internal amplifier of RX1000) as show n in Figure 8.
Explanation: when using the PC software to control RX1000, you can connect the PC and
RX1000 using USB cable . Then according to the above method to connect the RF signal
generator, the RX100 0, the spectrum analyzer and the amplifier module.
2. Configure the status of each switch via the built-in RX1000 control interface of DSG3000.
Switch Control Status Switch Status
Sw1 Disconnect J12 and connect J13 On
Sw2 Disconnect J2 Off
Sw3 Connect J3 and J4 On
Sw4 Disconnect J5 and J6 Off
Sw5 Disconnect J7 and J8 Off
Sw6 Disconnect J9 Off
3. Configure the parameters (e.g. enable the RF output, set the RF frequency or amplitude and
so on) on the RF signal generator. Output this signal from the RF output interface of the
DSG3000 and then input the signal from the J1 terminal of the RX1000.
4. Set the measurement parameters on the spectrum analyzer to get the measurement results.
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RX1000 RF Demo Kit Application Note
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Figure 8 The Influence of the Performance of Amplifier on the System
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RX1000 RF Demo Kit Application Note
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The Influence of the Performance of Filter on the System
Operation Steps:
1. Connect the DSG3 000 seri es RF signa l gen er ator and RX1000 us ing USB cable ; connect the J1
terminal of the RX1000 and the RF output interface of the DSG3000 using an N-SMA cabl e;
connect the J10 terminal of the RX1000 and the RF input interface of the sp ectrum anal yzer
using another N-SMA cable; connect the low-pass filter to J7 and J8 using two SMA-SMA cables
(to replace the internal low-pass filter of RX1000) as shown in Figure 9.
Explanation: when using the PC software to control RX1000, you can connect the PC and
RX1000 using USB cable. Then according to the above method to connect the RF signal
generator, the RX1000, the spectrum analyzer and the filter module.
2. Configure the status of each switch via the built-in RX1000 control interface of DSG3000.
Switch Control Status Switch Status
Sw1 Disconnect J12 and connect J13 On
Sw2 Disconnect J2 Off
Sw3 Disconnect J3 and J4 Off
Sw4 Disconnect J5 and J6 Off
Sw5 Connect J7 and J8 On
Sw6 Disconnect J9 Off
3. Configure the parameters (e.g. enable the RF output, set the RF frequency or amplitude and
so on) on the RF signal generator. Output this signal from the RF output interface of the
DSG3000 and then input the signal from the J1 terminal of the RX1000.
4. Set the measurement parameters on the spectrum analyzer to get the measurement results.
Figure 9 The Influence of the Performance of the Filter on the System
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RX1000 RF Demo Kit Application Note
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Specifications
This section lists the specifications of RX1000. The specifications can be guaranteed under the
following conditions: the temperature range is from 0℃ to 45℃; the instrument has been warmed
up for at least 30 minutes.
Parameter Explanation
Input Port
Inpu t Freque ncy (Stand a rd)
(Expansion) 950 MHz ± 20 MHz
50 MHz to 1000 MHz
Input Power ≤ 0 dBm
Output Port
Outpu t Frequency (Sta nda rd)
(Expansion) 50 MHz ±20 MHz
DC to 1000 MHz
Internal Local Oscillator Output
Output Frequency 5 00 MHz , 1000 MHz
Phase Noise -98 dBc/Hz@10 kHz, Typ ic al
Reference Frequency
Frequency 10 MHz
Temperature Stability ±1 ppm (0℃ to 45℃)
Agi ng Rate ±1 ppm/year
Output Power >0 dBm
Distortion
SHI +40 dBm
IP3 +20 dBm
Mixer
RF/LO Input Frequency Range 50 MHz to 1000 MHz
IF Outp u t Fre qu en cy Range DC to 1000 MHz
Local Oscillator Drive Pow er +7 dBm
Insertion Los s 8 dB (Maximum)
Band-pass Filte r
Center Frequency 950 MHz
1dB Bandwidth 30 MHz
Insertion Los s 3.2 dB (Typical), 4.0 dB (Maximum)
In-band Flatness 0.8 dB (Typical), 1.5 dB (Maximum)
Restrain at Center Frequency
±40 MHz >40 dB
Low-pass Filter
Stop Frequency 90 MHz
In-band Flatness 0.3 dB (Typical)
Variable Gain Amplifier
-3 dB Bandwidth 750 MHz
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RX1000 RF Demo Kit Application Note
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Gain -11 dB (Typical), 34 dB (Maximum)
NF 7 dB (Maximum Gain)
Amplifier
W orking Frequency DC to 2 GHz
Gain 20 dB (Typical)
P1dB >+5 dBm
NF 3.3 dB
USB Interface
Port B Socket
Protocol 1.1 Version
Environment Temperature
Working Temperature 0℃ to 45℃
St orag e Temperatur e -20℃ to 70℃
Relative Humidity <95%
Others
Connector Type SMA (JACK)
Po rt In put/out put Im peda nce 50 Ω
Powe r Co nsumption 1.5 W
Weight 0.7 kg
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RX1000 RF Demo Kit Application Note
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Accessories
Name
Specification & Quantity
RX1000 RF Demo Kit 1
USB Cable 1.5 m, 1
SMA-SMA Cable 100 mm, 3
N-SMA Cable 500 mm, 2
CD Include PC control s oftware inst allation progra m and application
note, 1
Kit Package 1
To order the above accessories, please contac t RIGOL.