JD780A Series Analyzers
Using CDMA Signal Analyzer
351
Codogram
The Codogram displays how the code level is changing over time and makes it easier for you to view
traffic channels as they initiate and terminate and to track traffic channels call levels over time. The
Codogram measurements can be saved into an external USB memory so that a post-analysis can be
done with the application software JDViewer.
Setting measure setup
After configuring test parameters as described in the
“Configuring test parameters” on page 334, you
can continue your measurement. The measurement settings can be saved and recalled as a file. You
can also use JDViewer, PC application software to configure a measure setup, save as a file, and load
the file on to the instrument.
Procedure
1.
Press the
MEASURE SETUP
hot key.
2.
To set the Pseudo-Noise (PN) offset, complete the following steps:
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
More (1/2) >
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
More (1/2) >
Q-Paging
soft key between
On
and
Off
to enable or disable the quick
page channel that indicates the power of Quick Page Walsh code 80.
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.
Summary of Contents for CellAdvisor JD780A Series
Page 52: ...JD780A Series Analyzers 52 Getting Started Figure 6 Example of Web remote on Chrome...
Page 254: ...JD780A Series Analyzers 254 Using LTE FDD Signal Analyzer 3 RS SINR 4 S SS RSSI 5 P SS Power...
Page 323: ...JD780A Series Analyzers Using LTE TDD Signal Analyzer 323 3 RS SINR 4 S SS RSSI 5 P SS Power...
Page 390: ...JD780A Series Analyzers 390 Using EV DO Signal Analyzer 3 Pilot 4 MAC 64 5 MAC 128...
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Page 590: ...JD780A Series Analyzers 590 Appendix Figure 306 Append keywords window...
