JDS Uniphase CellAdvisor JD780A Series, User Manual

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JD780A Series Analyzers
96
Using Interference Analyzer
3.
To change the mode, press the MEASURE hot key and then select the measurement mode:
Spectrogram , Dual Spectrogram , RSSI , Interference Finder , Spectrum Replayer , or Radar
Chart .
NOTE
If the Dual Spectrogram is selected, you can select the left or right measurement pane
in MEASURE SETUP to configure measurement parameters for the selected
spectrogram.
Configuring test parameters
Setting frequency
You need to set the frequency range to be measured either with the center frequency and span or with
the start and stop frequencies. You can also set the frequency with the channel number and span.
Procedure
To set the center frequency and span:
1.
Press the FREQ/DIST hard key.
2.
Toggle the Unit soft key and select Freq .
3.
Press the Center Frequency soft key.
4.
Enter a value by using the numeric keys. You can also use the rotary knob or the arrow keys.
5.
Select the unit: GHz , MHz , kHz , or Hz .
6.
Press the Span soft key, and then do one of the following:
–
To set the span manually, select Span , enter a value, and then select the unit.
–
To set the span automatically, select Full Span , Zero Span , or Last Span as needed.
NOTE
The Zero Span option is available only in the Spectrum mode. If you have selected Zero
Span , select TRIGGER > Free Run , External , GPS , Video , or Display Position .
To set the start and stop frequencies:
1.
Press the FREQ/DIST hard key.
2.
Toggle the Unit soft key and select Freq .
3.
Press the Start Frequency soft key.
4.
Enter a value by using the numeric keys. You can also use the rotary knob or the arrow keys.
5.
Select the unit: GHz , MHz , kHz , or Hz .
6.
Press the Stop Frequency soft key.
7.
Enter a value by using the numeric keys. You can also use the rotary knob or the arrow keys.
8.
Select the unit: GHz , MHz , kHz , or Hz .
To set the channel number and span:
1.
Press the FREQ/DIST hard key.
2.
Toggle the Unit soft key and select Channel .
3.
To select the standard channel, complete the following steps:
a. Press the Channel Std soft key. The standard channel window appears.