Rohde & Schwarz CMW 500 - Page 297

R&S
®
CMW 500 GSM Applications
GSM Command Reference
Operating Manual 1202.3986.32 – 03 277
<Time
Start>
[Xs]
<Time
End>
[Xs]
<Rel Start> (=<Rel
End>) [dB]
<Abs Start> (=<Abs End>)
[dBm], <Status>
<Status
Area>
<number>=3 538.8 542.8 2.4 OFF ON
Useful part 8PSK
<Time
Start>
[Xs]
<Time
End>
[Xs]
<Rel Start> (=<Rel
End>) [dB]
<Abs Start> (=<Abs End>)
[dBm], <Status>
<Status
Area>
<number>=1 542.8 552.8 GMSK: 1, 8PSK: 4 OFF ON
<number>=2 552.8 560.8 -6 OFF ON
<number>=3 560.8 570.8 -30 -17/-20, ON ON
<number>=4 570.8 580.8 -59/-48 -36/-48, ON ON
Falling edge GMSK and 8PSK
CONFigure:GSM:MEAS<i>:MEValuation:LIMit:GMSK:PVTime:LOWer:UPARt<nu
mber>:STATic
CONFigure:GSM:MEAS<i>:MEValuation:LIMit:EPSK:PVTime:LOWer:UPARt<num
ber>:STATic
<Time Start>, <Time End>, <Rel Start>, <Rel End>, <Abs Start Status> | <Abs
Start>, <Abs End Status> | <Abs End>, <Status Area>
These commands define and activate lower limit lines for the measured power vs. time.
The lines apply to the "useful part" of a burst for modulation schemes GMSK or 8PSK
(EPSK). Each line may consist of several areas for which relative and absolute limits
can be defined (if both are defined the lower limit overrules the higher one).
<number> Number of the area
Range: 1 to 5
Def. value: 1
<Time Start>,
<Time End>,
Start and end time of the area
Range: -50 fs to +600 fs
Def. values: see table below
<Rel Start>,
<Rel End>,
Start and end level of the relative limit for the area
Range: -100 dB to +20 dB
Def. values: see table below
<Abs Start Status>, ON: Enable the defined start level of the absolute limit
OFF: Disable the defined start level of the absolute limit
Def. values: see table below
<Abs Start>, Set start level of the absolute limit for the area. The status is left
unchanged.
Range: -90 dBm to +50 dBm
Def. values: see table below
深圳德标仪器 135-1095-0799