R&S
®
CMW 500 GSM Applications
GSM Command Reference
Operating Manual 1202.3986.32 – 03 284
<Status> n=1 n=2 n=3 n=4 n=5 n=6 n=7 n=8 n=9 n=10
<offsetno>=5 to 14 OFF 0 0 0 0 0 0 0 0 0 0
<offsetno>=15 to 20 OFF 0 -15 -17 -19 -21 -23 -23 -23 -23 -23
8.4.2.15 Filter Settings
The following commands select the measurement filters (IF filters).
CONFigure:GSM:MEAS<i>:MEValuati
on:PVTime:FILTer <PvT Filter>
Selects the bandwidth of the IF filter for the "Power vs. Time" measurement.
<PvT Filter> G05M: 500 kHz Gauss filter
G10M: 1 MHz Gauss filter
Def. value: G05M
Example See Performing Single Shot Measurements
Characteristics Firmware version V1.00
8.4.2.16 EVM Measurement Results (Trace)
The following commands return the EVM trace results of the multi-evaluation
measurement for the "measured slot"
(CONFigure:GSM:MEAS<i>:MEValuation:MSLots).
FETCh:GSM:MEAS<i>:MEValuation:TRACe:EVMagnitude:CURRent?
FETCh:GSM:MEAS<i>:MEValuation:TRACe:EVMagnitude:AVERage?
FETCh:GSM:MEAS<i>:MEValuation:TRACe:EVMagnitude:MAXimum?
READ:GSM:MEAS<i>:MEValuation:TRACe:EVMagnitude:CURRent?
READ:GSM:MEAS<i>:MEValuation:TRACe:EVMagnitude:AVERage?
READ:GSM:MEAS<i>:MEValuation:TRACe:EVMagnitude:MAXimum?
Returns the values of the EVM traces. The results of the current, average and
maximum traces can be retrieved.
Returned values
<Reliability>, Reliability indicator
<EVM 1>,
...,
<EVM n>
n EVM results, depending on the type of modulation
8PSK modulation: 142 values (one value per symbol period)
GMSK modulation:588 values (four values per symbol period)
Range: 0 % to 100 %
Def. unit: %
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