8494/95/96G/H Operating And Service Manual 13
Operating Instructions
Procedure 1. Connect equipment as shown in Figure 4 on page 12 with the attenuator
set to 0 dB attenuation.
2. Set the test oscillator to 0.3 Vrms at 1 kHz.
3. Set SWR meter range to 2 dB (expanded) [or for the 8494G/H to 10 dB
(expanded)] and adjust its bandwidth to center of adjustment range. Fine
tune oscillator frequency to obtain maximum meter indication.
4. Set attenuator and SWR meter range sw itch as listed in Tabl e 4 and
verify that SWR meter indicates within limits shown.
Table 4 Attenuator and SWR Settings
SWR Meter Range
(dB) Attenuation (dB) Meter Indication (dB)
Minimum Actual Maximum
8494G/H 8495G/H
8496G/H 8494G/H 8495G/H 8496G/H 8494G/H 8495G/H
8496G/H 8494G/H 8495G/H
8496G/H 8494G/H 8495G/H
8496G/H
10 2 0 0 0 - - Set to 0.0 Set to 0.5 - -
10 6 1 10 10 0.40 1.40 - - 0.60 1.60
10 12 2 20 20 0.90 0.30 - - 1.10 0.70
10 16 3 30 30 1.35 1.25 - - 1.65 1.75
10 122 4 40 40 1.85 0.15 - - 2.15 0.85
12 26 5 50 50 0.35 1.10 - - 0.65 1.90
12 32 6 60 60 0.85 0.00 - - 1.15 1.00
12 36 1
1. Adjust range by 2 dB, if needed, to obtain a on-scale indication.
7 70 70 1.30 0.90 - - 1.70 2.10
12 1 42 18 - 80 1.80 –0.15 - - 2.20 1.15
14 46 19 - 90 0.30 0.75 - - 0.70 2.25
14 52 1 10 - 100 0.80 –0.30 - - 1.20 1.30
14 56 111 - 110 1.75 0.60 - - 1.75 2.40