Service manual

Agilent 8494A/B, 8495A/B, 8496A/B Operating And Service Manual 9
Operator’s Check
Performance Tests The instrument can be tested to the accuracy of the “Specifications” on page
3, with an automatic network analyzer or equivalent equipment of suitable
accuracy. If an automatic network analyzer is available, test the instrument
using the procedures in the analyzer's operating manual.
NOTE The attenuators have no internal adjustments and should not be opened. If
defective, return the attenuator to the nearest Agilent Technologies office for
repair.
Table 2 Attenuation and SWR Settings
SWR Meter Range
(dB)
Attenuation (dB) Meter Indication (dB)
Minimum Actual Maximum
8494A/B 8495A/B
8496A/B
8494A/B 8495A/B 8496A/B 8494A/B 8495A/B
8496A/B
8494A/B 8495A/B
8496A/B
8494A/B 8495A/B
8496A/B
10 2 0 0 0 - - Setto0.0 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
1
22 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
1
8 - 80 1.80 –0.15 - - 2.20 1.15
14 46
1
9 - 90 0.30 0.75 - - 0.70 2.25
14 52
1
10 - 100 0.80 –0.30 - - 1.20 1.30
14 56
1
11 - 110 1.75 0.60 - - 1.75 2.40