Nominal ATTN (dB) Deviation (dB)
10, 20 + 0.90
30 + 1.25
Model 79 dc to 5.0 GHz
High Power Fixed Coaxial Attenuators 150 Watts
7/16 Connectors!
Specifications
NOMINAL IMPEDANCE: 50 Ω
FREQUENCY RANGE: dc to 5.0 GHz
Features
oOptimized for Wireless OEM & Test Applications.
oLow Intermodulation Design.
oDesigned to meet environmental requirements of
MIL-A-3933.
POWER RATING (mounted horizontally): 150 watts
average (unidirectional) to 25°C ambient temperature,
derated linearly to 15 watts @ 125°C. Note: 3 dB model can
handle 300 Watts average derated linearly to 30 watts @
125°C. 10 kilowatt peak (5 µsec pulse width; 0.75% duty
cycle). Maximum power rating into output port is 20 watts
average.
POWER COEFFICIENT: <0.0001 dB/dB/watt
TEMPERATURE COEFFICIENT: <0.0004 dB/dB/°C
TEMPERATURE RANGE: -55°C to 125°C
CALIBRATION: Insertion loss test data supplied at 0.05,
1.0, 2.0, 3.0, 4.0 and 5.0 GHz. Other test data can be pro-
vided at additional cost.
CONNECTORS: 7/16 connector that conforms to DIN
47223, IEC 169-4, VG 95250, CECC 22 190.
Connector Options Type/Description
1 7/16 Female
2 7/16 Male
CONSTRUCTION: Black, finned aluminum body, silver
plated brass connectors.
WEIGHT: 1,248 g (2.75 lbs.) maximum
MAXIMUM DEVIATION OVER FREQUENCY:
Frequency (GHz) SWR
dc - 3 1.20
3 - 5 1.35
MAXIMUM SWR:
MODEL NUMBER DESCRIPTION:
Example:
79 - XX -XX
Basic
Model
Number
Attenuation
Value (dB)
Connector Options
1st digit is input side
2nd digit is output side
PHYSICAL DIMENSIONS:
3rd ORDER INTERMODULATION: Reflected Levels (IM3),
-100 & Through Levels (IM3), -110 dBc with two input sig-
nals @ 869 MHz and 891 MHz with average carrier power
levels of +43 dBm each.
Connector DIM A +0.8 (0.3)
7/16 Male 32.3 (1.27)
7/16 Female 30.7 (1.21)
NOTE: All dimensions are given in mm (inches) and are maximum, unless otherwise specified.
5305 Spectrum Drive, Frederick, MD 21703-7362 TEL: 301-846-9222, 800-638-2048 Fax: 301-846-9116
web: www.weinschel.com email: sales@weinschel.com
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10/23/01
