JDS Uniphase CellAdvisor JD780A Series, User Manual

Page: 303 / 592

JD780A Series Analyzers
Using LTE
– TDD Signal Analyzer
303
Setting measure setup
After setting frequency as described in the
“Configuring test parameters” on page 265, you can
continue your measurement.
Procedure
1.
Press the MEASURE SETUP hot key.
2.
Press the Bandwidth soft key.
3.
Select the nominal channel bandwidth to be measured, from the following choices:
–
1.4 MHz , 3 MHz , 5 MHz , 10 MHz , 15 MHz , and 20 MHz
4.
Press the Sector soft key, and then select the sector option: Alpha , Beta , or Gamma .
5.
To set external offset, complete the following steps:
a. Toggle the External Offset soft key and select On .
b. Enter a value by using the numeric keys.
c. Press the dB soft key.
6.
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.
7.
Press the Run Test soft key to start to run a test.
The Auto Measure Results window appears at the end of the test.
8.
When prompted on the screen, connect the cable from the Spectrum Analyzer RF In port of the
instrument either to Antenna Port 0 or Antenna Port 1 of the eNode-B, and then change the TM
mode on the eNode-B side.
9.
Press the Continue soft key to continue testing.
10.
Repeat the steps 8-9 until completion of the test.
A conformance test report appears at the end of the test.
11.
Optional . To stop running the test, press the Abort soft key.
Maintenance test
The Auto Measure function of the JD780A series allows a complete signal profiling covering RF
characterization and modulation quality parameters of up to 20 different carriers, particularly useful on
an overlay architecture where base stations are transmitting in different frequencies.
Following settings are required only when you run the Auto Measure Maintenance Test on the
instrument using
“Current” configuration setting. Additional settings are not required when you run Auto
Measure using a scenario generated in the PC application software, JDViewer.
Setting limit for maintenance test
You can set test limits for test item(s) in the auto measurement.
Procedure
1.
Press the LIMIT hot key.
2.
Press the RF Test Limits soft key, and then enable test limits as desired.
3.
Press the PvsT Test Limits soft key, and then enable test limits as desired.
4.
Press the Modulation Test Limits soft key, and then enable test limits as desired.