JDS Uniphase CellAdvisor JD780A Series, User Manual

Page: 142 / 592

JD780A Series Analyzers
142
Using GSM/GPRS/EDGE Signal Analyzer
NOTE
Measurement items such as IQ Origin Offset, C/I, EVM RMS/Peak and EVM 95
th
are applicable only to EDGE signal measurements.
Performing auto measurements
The Auto Measure function of the JD780A series allows a complete signal profiling covering RF
characterization and modulation quality parameters of up to 10 different carriers, particularly useful on
an overlay architecture where base stations are transmitting in different frequencies.
The Auto Measure can be easily executed either by selecting a menu in the instrument or by running a
programmed scenario in the PC-based application so that the instrument automatically configure and
perform tests on every aspect of all the carriers.
Setting limit for auto measure
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.
5.
Optional . You can enable alarm sound that goes off if the measurement falls outside of the limit.
Toggle the Beep soft key between On and Off to enable or disable the beep sound.
6.
Optional . Go to SAVE/LOAD > Save , and then select Limit to save the limit settings.
See
“Using save” on page 31 for more information.
Setting measure setup
After configuring test parameters as described in the
“Configuring test parameters” on page 125, you