Agilent Technologies N9320A Guide de l'utilisateur télécharger pdf (Page 54)

46 N9320A Spectrum Analyzer

3 Functions and Measurements

5 Turn off the signal track function:

Press > Signal Track (Off)

6 Measure the excursion of the signal with maximum hold:

Press > Max Hold

As the signal varies, maximum hold maintains the maximum

responses of the input signal. Annotation on the left side of

the screen indicates the trace mode. For example, M1 S2 S3

indicates trace 1 is in maximum- hold mode, trace 2 and

trace 3 are in store- blank mode.

7 Activate trace 2 and change the mode to continuous sweep:

Press > Select Trace > Trace 2

Press Clear Write

Trace 1 remains in maximum hold mode to show any drift

in the signal.

8 Slowly change the frequency of the signal generator. Your

analyzer display should look similar to Figure 15.

Figure 15 Viewing a Drifting Signal With Max Hold and Clear Write

Frequency

View/

Tra c e

View/

Tra c e

1 2 ... 49 50 51 52 53 54 55 56 57 58 59 ... 177 178

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Agilent Technologies N9320A Guide de l'utilisateur Page 54