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Chapter 17 Performing RFoOBSAI Testing
JD700B Series User’s Guide
693
8
Optional . Go to SAVE/LOAD > Save , and then select the save option from the choices available
for your measurement mode. See “Using save” on page 35 for more information.
Measurement example
Figure 413 CCDF measurement with RFoOBSAI LTE-FDD signal analyzer
Setting limit for RFoOBSAI signal analysis
By default, test limits specified in the standard are set for you. You can change thresholds if you desire.
Procedure
1
Press the LIMIT hot key.
2
To set a limit for RF analysis tests, press the RF Test Limit s soft key and then set limits as
needed, depending on where you are in the measurement mode.
To set the limit for Select Set
Channel power Channel Power High Limit, Low Limit
Occupied bandwidth Occupied BW High Limit
3
To set a limit for modulation tests, press the Modulation Test Limits soft key and then set limits
as needed, depending on where you are in the measurement mode.
To set the limit for Select Set
Frequency error Frequency Error High Limit, Low Limit
PDSCH error vector
magnitude if MBMS is off EVM > PDSCH EVM High Limit (QPSK)
High Limit (16 QAM)
High Limit (64 QAM)
PMCH error vector magnitude
if MBMS is on and a PMCH is
detected EVM > PMCH EVM High Limit (QPSK)
High Limit (16 QAM)
High Limit (64 QAM)
RMS for data error vector
magnitude EVM > Data EVM RMS High Limit
Peak for data error vector EVM> Data EVM Peak High Limit