811
QPSK EVM Measurement
Meas Setup
Filter Alpha
Sets the alpha value for the root raised cosine (RRC) filter. This key is available only in WCDMA mode and while employing an RRC filter. Chip RateChanges the chip rate for the measurement.
Key Path Meas Setup, Advanced
Mode WCDMA
Preset ON
State Saved Saved in instrument state.
Range On|Off
Instrument S/W Revision Prior to A.02.00
Remote Command [:SENSe]:EVMQpsk:FILTer:ALPHa <real>
[:SENSe]:EVMQpsk:FILTer:ALPHa?
Example EVMQ:FILT:ALPH 0.5
EVMQ:FILT:ALPH?
Key Path Meas Setup, Advanced
Mode WCDMA, C2K, 1xEVDO
Notes This parameter is available only in the WCDMA mode. In other modes, this
key is invisible.
Preset 0.22
State Saved Saved in instrument state.
Min 0.01
Max 0.5
Instrument S/W Revision Prior to A.02.00
Remote Command [:SENSe]:EVMQpsk:CRATe <freq>
[:SENSe]:EVMQpsk:CRATe?
Example EVMQ:CRAT 2.5 MHz
EVMQ:CRAT?
Key Path Meas Setup, Advanced
Mode WCDMA, C2K, 1xEVDO
Notes Enter a frequency value to set the chip rate.