JDS Uniphase CellAdvisor JD780A Series, Руководство пользователя

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JD780A Series Analyzers
Using Power Meter
551
Selecting measurement mode
Procedure
1.
Press the MODE hard key.
2.
Select More (1/2) > Power Meter > Internal RF Power Meter .
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.
See
“Appendix C – Band, frequency & channel standard” on page 571 for more information.
b. Select the band to be measured by using the rotary knob, the arrow keys, or the Page
Up/Page Down soft keys.
c. Press the Select soft key or the rotary knob to confirm the selection.