JDS Uniphase CellAdvisor JD780A Series, User Manual

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JD780A Series Analyzers
Using LTE
– TDD Signal Analyzer
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This MIMO (Multiple Input Multiple Output) setting is activated only if the option 031 LTE-
Advanced TDD is installed with a license number. If not, the instrument sets this option to
2x2 by default. A 2x1 or 4x1 RF combiner is also required to able to test on MIMO
channels.
d. Press the Antenna Port soft key, and then select the option: Auto , 0 , 1 , 2 , or 3 .
If the option 031 LTE-Advanced TDD is not installed or if the MIMO is set to 2x2, the
antenna ports 2 and 3 are disabled.
e. Toggle the External Offset soft key and select On .
f. Enter a value by using the numeric keys, and then press the dB soft key.
g. To turn the Multimedia Broadcast Multicast Service (MBMS) feature on or off, toggle the
MBMS soft key and select On or Off . For proper MBMS testing, you need to set the
Subframe No with the same PMCH subframe number.
h. To set the Multicast Broadcast Single Frequency Network (MBSFN) detection automatically
or manually for MBMS testing, toggle the
MBSFN soft key and select Auto or Manual . An
automatically detected or manually entered MBSFN ID appears on the screen.
8.
To save your settings and results, go to SAVE/LOAD > Save and then perform functions as you
desire. See
“Using save” on page 31 for more information.
9.
Press the Run Test soft key to start to run a test.
The Auto Measure Results window appears at the end of the test.
10.
To stop running the test, press the Abort soft key.
11.
To change the view on the screen during the test, press the Display and then select the view
option from the following choices:
–
Screen : You can view each measurement screen as the test progresses.
–
Results : You can view a measurement result table as the test progresses.
–
Settings : You can view a measurement setting table as the test progresses.
Setting display
After completion of the auto measurement, the screen menu changes to Trace/Display so that you can
view the results in different forms.
Procedure
1.
Toggle the Display soft key and select the display option:
–
Result : to view the result table. The Display Result menu becomes activated.
–
Settings : to view the measurement settings for the auto measurement.
2.
Toggle the Display Result soft key and select the display result option:
–
Full : to view detailed measurement readings with the pass/fail indication.
–
Quick : to view only the Pass/Fail results.
–
Compare : to compare two measurement values for each test time with the Allowed %
Change setting on. You can view results vs. factory-defined or user-defined references.
3.
To view the measurement results for a different carrier, press the View Carrier soft key and then
select the carrier number to view.
4.
Press the Replace Reference soft key to replace existing reference values for comparison with
new measurement data.
5.
Press the Load From soft key to select the location from which references file to be loaded.