Table of Contents
Advertisement
JD780A Series Analyzers
11.
Optional. To change the settings such as External Offset, press the Settings and then change
the settings as needed.
12.
Press the Continue soft key.
The instrument runs the testing on Ant 1. The Ant 1 tab appears with the updated result table
when the test is done.
13.
To run the testing on the next antenna (Ant 2), press the Run Test soft key and then repeat the
steps 11-12. You can do the testing on up to 10 distributed antennas for one radio band.
14.
To view test results for each antenna, press the Select Antenna soft key and then select the
antenna tab number to display on the screen.
15.
Optional. Press the Delete Test soft key to delete the selected antenna tab.
16.
Optional. Press the Retest Reference soft key to obtain reference measurement values again.
17.
Optional. To save your measurement results, go to SAVE/LOAD > Save and then perform
functions as you desire. See "Using save" on page 31 for more information.
Measurement example
Figure 140 DAS measurement with LTE - TDD signal analyzer
Performing power statistics CCDF measurements
The Power Statistics Complementary Cumulative Distribution Function (CCDF) measurement
characterizes the power statistics of the input signal. It provides PAR (Peak to Average power Ratio)
versus different probabilities.
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.
308
Using LTE – TDD Signal Analyzer
Advertisement
Table of Contents
