JDS Uniphase CellAdvisor JD780A Series, User Manual

Page: 292 / 592

JD780A Series Analyzers
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Using LTE
– TDD Signal Analyzer
Figure 134 Control channel measurement with LTE - TDD signal analyzer (MBMS On)
NOTE
You can use the LIMIT hot key to analyze your measurements with the user-definable
limit and Pass/Fail indication. See
“Setting limit for modulation tests” on page 300 for
more information.
Using marker
You can use the MARKER hard key to place a marker on a resource block and display the IQ diagram
for the selected resource block.
Procedure
1.
Press the MARKER hard key.
2.
Press the Channel soft key to select the channel to be displayed in the IQ diagram.
The channel P-SS is selected by default.
3.
Turn the rotary knob to move the highlight from one to another in the channel summary table.
4.
Toggle the Marker View soft key between On and Off to display or dismiss the result of the
selected channel.
Subframe
The Subframe measures the modulation accuracy of all the data and control channels at the specified
subframe (1 ms).
Setting measure setup
After configuring test parameters as described in the
“Configuring test parameters” on page 265, 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