User`s guide

Functions and Measurements 3

N9320A Spectrum Analyzer 55

5 Increase measurement sensitivity and smooth the noise:

Press > Res Bw > 30 > KHz

Press > Video Bw > 300 > KHz

A decrease in displayed amplitude is caused by tracking

error

6 Use peak tracking to correct the frequency offset:

Press > Tracking Generator > More > Tracking Peak

Tracking error occurs when the output frequency of the

tracking generator is not exactly matched to the input

frequency of the analyzer. The amplitude should return to

the value that was displayed prior to the decrease in

resolution bandwidth.

7 Connect the cable from the tracking generator output to the

analyzer input. Store the frequency response in trace 3 and

normalize:

Press > Tracking Generator > More > Normalize > Store Ref (1

→ 3) > Normalize (On)

8 Reconnect the DUT to the analyzer and change the

normalized reference position:

Press > Tracking Generator > More > Normalize > Norm Ref

Posn > 8

NOTE

To reduce ripples caused by source return loss, use 6 dB or greater

output attenuation. Tracking generator output attenuation is normally

a function of the source power selected. However, the output

attenuation may be controlled in the Tracking Generator menu.

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