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Chapter 4 Calibration and Adjustment
AC Amplitude (high-impedance) Adjustment (Channel 2)
4
AC Amplitude (high-impedance) Adjustment
(Channel 2)
The waveform generator stores a calibration constant for each high-
impedance attenuator path. The gain coefficient of each path is
calculated using two measurements; one with the waveform DAC at +
output and one with waveform DAC at – output. The setups, therefore,
must be performed in pairs.
1 Connect the DMM to the Channel 2 Output as shown below.
2 Use the DMM to measure the dc voltage at the front-panel Output
connector for each setup in the following table.
Nominal Signal
Setup DC level
57 +0.0028 V Output of -72 dB range
58* -0.0028 V Output of -72 dB range
59 +0.007 V Output of -64 dB range
60* -0.007 V Output of -64 dB range
61 +0.017 V Output of -56 dB range
62* -0.017 V Output of -56 dB range
63 +0.044 V Output of -48 dB range
64* -0.04 V Output of -48 dB range
65 +0.11 V Output of -40 dB range
66* -0.11 V Output of -40 dB range
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