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Chapter 13 Using Mobile WiMAX Signal Analyzer
Measurement example
Figure 229 EVM vs. symbol measurement with Mobile WiMAX signal analyzer
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 436 for
more information. The Spectral Flatness and Frequency Error are not used in the EVM
vs. Subcarrier mode.
Setting limit for modulation tests
Procedure
1
Press the LIMIT hot key.
2
Press the Modulation Test Limits soft key to set the limits.
3
Select the test item(s) and set the limit(s) depending on your selected measurement mode:
To set the limit for
Spectral flatness
Frequency error
RMS for RCE
Peak for RCE
RMS for error vector magnitude
Peak for error vector magnitude
4
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.
5
Optional. Go to SAVE/LOAD > Save, and then select Limit to save the limit settings.
See "Using save" on page 32 for more information.
436
Select
Spectral Flatness
Frequency Error
RCE RMS
RCE Peak
EVM RMS
EVM Peak
JD700B Series User's Guide
Set
On/Off
High Limit
Low Limit
High Limit
High Limit
High Limit
High Limit
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