AC Amplitude (high-impedance) Adjustment
AC Amplitude (high-impedance) Adjustment
The instrument stores a calibration constant for each high-impedance attenuator path. Each path's gain coefficient is
calculated using two measurements: one with the waveform DAC at + output and one with waveform DAC at – out-
put. The setups, therefore, must be performed in pairs.
1. Connect the DMM to the channel output as shown below.
2. Use the DMM to measure the DC voltage at the front-panel connector for each setup in the following table.
Setup Nominal Signal
DC Level
10 +0.0028 V Output of -72 dB range
11* - 0.0028 V Output of -72 dB range
12 +0.007 V Output of -64 dB range
13* -0.007 V Output of -64 dB range
14 +0.017 V Output of -56 dB range
15* -0.017 V Output of -56 dB range
16 +0.044 V Output of -48 dB range
17* -0.044 V Output of -48 dB range
18 +0.11 V Output of -40 dB range
19* -0.11 V Output of -40 dB range
20 +0.28 V Output of -32 dB range
21* -0.28 V Output of -32 dB range
Agilent 33500 Series Operating and Service Guide 393
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