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Figure 2a-3
Log and Linear Amplifier Adjustment Location
11.Set the 10 dB step attenuator to 60 dB. Adjust A14R10 OFFSET for
the DMM reading of 250 mV ±2 mV.
12.Repeat
13.Set the 10 dB step attenuator to 30 dB. Adjust the A14R23 SLOPE
for a DMM reading of 625 mV ±2 mV.
14.Set the 10 dB step attenuator back to 0 dB. Adjust the A14R69
−30 dB for a DMM reading of 1000 mV ±1 mV.
15.Repeat
16.Set the 10 dB step attenuator to 10 dB. Adjust the A14R23 SLOPE
for a DMM reading of 875 mV ±2 mV.
17.Set the 10 dB step attenuator back to 0 dB. Adjust the A14R39
−10 dB for a DMM reading of 1000 mV ±2 mV.
18.Repeat
19.Repeat
Chapter
step 10
and
step 11
step 13
and
step 14
step 16
and
step 17
step 10
to
step 18
2a
Making Adjustments: If 3335A Source Not Available
until no further adjustment is necessary.
until no further adjustment is necessary.
until no further adjustment is necessary.
until the limits in
Table 2a-3
7a. Log and Linear Amplifier
are met.
189
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Troubleshooting
