Figure 12. Identifying Analyzer Distortion (O Db Atten); Figure 13. Identifying Analyzer Distortion (10 Db Atten) - Agilent Technologies N9340A User Manual

Figure 12 Identifying Analyzer Distortion (O dB atten)
Figure 13 Identifying Analyzer Distortion (10 dB atten)
The marker amplitude readout comes from two
sources:
•
•
Large marker readout indicates significant
measurement errors. Set the input attenuator to
minimize the absolute value of marker.
N9340A User's Guide
Increased input attenuation causes poorer
signal- to- noise ratio. This causes the marker
to be positive.
The reduced contribution of the analyzer
circuits to the harmonic measurement causes
the Marker to be negative.
Making Measurements 4
57