Frequency Range
and Attenuation
Specifications
Specifications
Instrument Frequency Range Attenuation
8494G dc to 4 GHz 0 dB to 11 dB in 1 dB steps
8494H dc to 18 GHz 0 dB to 11 dB in 1 dB steps
8495G dc to 4 GHz 0 dB to 70 dB in 10 dB steps
8495H dc to 18 GHz 0 dB to 70 dB in 10 dB steps
8496G dc to 4 GHz 0 dB to 110 dB in 10 dB steps
8496H dc to 18 GHz 0 dB to 110 dB in 10 dB steps
Attenuation Accuracy
8494G/H 8495G/H
8496G/H
AttenuationSelection
(dB)
1 10 0.2 0.3 0.7 0.2 0.5 0.6 0.2 0.5 0.6
2 20 0.2 0.3 0.7 0.4 0.7 0.8 0.4 0.7 0.8
3 30 0.3 0.4 0.7 0.5 0.9 1.2 0.5 0.9 1.2
4 40 0.3 0.4 0.7 0.7 1.2 1.6 0.7 1.2 1.6
5 50 0.3 0.5 0.7 0.8 1.5 2.0 0.8 1.5 2.0
6 60 0.3 0.5 0.8 1.0 1.8 2.4 1.0 1.8 2.4
7 70 0.4 0.6 0.8 1.2 2.1 2.8 1.2 2.1 2.8
8 80 0.4 0.6 0.8 - - - 1.3 2.4 3.2
9 90 0.4 0.6 0.8 - - - 1.5 2.7 3.6
10 100 0.4 0.6 0.9 - - - 1.6 3.0 4.0
11 110 0.5 0.7 0.9 - - - 1.8 3.3 4.4
8494G 8494H 8495G 8495H 8496G 8496H
dc–4
GHz
( dB): (Referenced from 0 dB)
dc–12.4
GHz
12.4–18
GHz
dc–4
GHz
dc–12.4
GHz
12.4–18
GHz
dc–4
GHz
dc–12.4
GHz
12.4–18
GHz
6 8494/95/96G/H Operating And Service Manual
Maximum SWR
Specifications
Instrument Frequency Range (GHz) Maximum SWR
8495G dc to 4 1.35
Maximum Residual
Attenuation
8495H dc to 8
8 to 12.4
12.4 to 18
8494G,
8496G
8494H,
8496H
Instrument Maximum Residual Attenuation
8494G,
8494H
8495G,
8495H
8496G,
8496H
dc to 4 1.5
dc to 8
8 to 12.4
12.4 to 18
0.6 dB + 0.09 dB/GHz
0.4 dB + 0.07 dB/GHz
0.6 d8 + 0.09 dB/GHz
1.35
1.5
1.7
1.5
1.6
1.9
Attenuation Repeatability
RF Power Handling
Capability
Solenoid Drive
0.01 dB typical after 5 million cycles
1 W average, 100 W peak with maximum pulse width of 10 microseconds
(all models)
Solenoids Drive Coil Voltage Switching Current
All models
(approximately)
1. For serial number prefixes below 1722S, change 125mA to 110mA.
20 to 30 Vdc 125 mA
1
at 24V
(190Ω, 65mH)
8494/95/96G/H Operating And Service Manual 7
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