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JD780A Series Analyzers
a.
Toggle the PN Offset soft key between Auto and Manual.
b.
Enter a value by using the numeric keys to set manually.
c.
Press the Enter soft key.
3.
To set the incremental step for the PN offset, complete the following steps:
a.
Press the PN Increment soft key.
b.
Enter a value by using the numeric keys.
c.
Press the Enter soft key.
4.
To set the threshold between Auto and Manual, complete the following steps:
a.
Press the Threshold soft key. Its default setting is -27 dB.
b.
Enter a value between -50 and zero by using the numeric keys to change the value in the
Manual mode.
c.
Press the Enter soft key.
5.
Toggle the MAC soft key and select the MAC Walsh code option: 64 or 128.
6.
To set the time interval, complete the following steps:
a.
Press the Time Interval soft key.
b.
Enter a value by using the numeric keys.
c.
Press the Enter soft key.
7.
To place the time cursor to analyze your measurements, complete the following steps:
a.
Toggle the Time Cursor soft key between On and Off to enable or disable the time cursor.
b.
Enter a value by using the numeric keys.
c.
Press the Enter soft key.
NOTE
When the time cursor is enabled, the measurement is put on hold and information about
the time cursor is displayed.
8.
Optional. Go to SAVE/LOAD > Save, and then select the save option from the choices available
for your measurement mode. See "Using save" on page 31 for more information.
Measurement example
Figure 191 MAC Codogram in full view with EV-DO signal analyzer
394
Using EV-DO Signal Analyzer
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