Parameter Interactions (cdma2000/1xEV-DV)

When using cdma2000 demodulation, changing one parameter may necessitate changes in other parameters to achieve the desired measurement. For example,

Chip Rate limits frequency span.
Minimum frequency span may limit the chip rate. (This may occur when playing back a recording or analyzing data from the stream interface.)
Measurement Interval and Measurement Offset are limited by the Result Length
Base Walsh Code Length setting may restrict choices for Despread Channel Walsh Code Length and CDP Layer Walsh Code Length.
Changing link Direction changes the valid limits for many parameters
1xEV-DV enables the following parameters:
- Predefined F-PDCH Active Channels
- Use Gated Modulation Detection

The following topics may help optimize your measurements and explain the reasons for changes made automatically by the VSA.