HP 8902A Quick Reference Manual page 316

Model
8902A
Operation
COMMENTS
Inherent IF Component
AM
OUTPUT
contains a significant IF component which is greatest when operating at a carrier
frequency of 150 kHz.
RF
Peak Detector Measurements of AM Output
The accuracy of measurements made on the AM
OUTPUT
signal could be degraded if RF level
measurements are made using the RF peak detector (Special Function 35.0).
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