Rohde & Schwarz CMU-K20, Operating Manual

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CMU-K20/21/22/23/24 Common: MODulation:MERRor
1115.6088.12 6.101 E-12
Scalar Results:
READ[:SCALar]:MODulation:MERRor:EPSK? Start single shot meas. and return results
FETCh[:SCALar]:MODulation:MERRor:EPSK? Read out meas. results (unsynchronized)
SAMPle[:SCALar]:MODulation:MERRor:EPSK? Read out measurement results (synchronized)
Returned values Value range Def. value Def. unit FW vers.
95thPercentileMErr
MErrPeak (x3),
MErrRMS (x3),
OriginOffset (x3),
FrequencyError (x3),
AvgBurstPowerCurr,
BurstsOutOfTol 0.0 % to 100.0 %
0.0 % to 100.0 %
0.0 % to 100.0 %
–100.0 dB to +100.0 dB
–1000.0 Hz to +1000.0 Hz
–137 dBm to +53 dBm
0.0 % to 100.0 % NAN
NAN
NAN
NAN
NAN
NAN
NAN
%
%
%
dB
Hz
dBm
% V2.15
Description of command
These commands are always queries. They start a modulation measurement and output all scalar measurement
results (see chapter 4), either for the whole burst or for the 1
st
ten valid symbols in the burst. The calculation of
results in an average or peak measurement is described in chapter 3 (see calculation of statistical quantities ).
The symbol (x3) behind a value indicates that the list contains three results corresponding to the Current , the
Average, and the MMax value.
CALCulate:MODulation:MERRor:EPSK:LIMit:MATChing? Bursts out of Tolerance
Returned values Value range Def. value Def. unit FW vers.
95thPercentileMErr
MErrPeak (x3),
MErrRMS (x3),
OriginOffset (x3),
FrequencyError (x3)
For all measured values:
NMAU | NMAL | INV | OK INV
INV
INV
INV
INV –
–
–
–
– V2.15
Description of command
This command is always a query. It indicates whether and in which way the error limits for the scalar measured
values (see above command) have been exceeded. The symbol (x3) behind a value indicates that the list con-
tains three results corresponding to the
Current , the Average, and the MMax value. The limits are defined with
the
CONFigure:MODulation:OEMP
... commands.
The following messages may be output for all measured values:
NMAU Underflow of tolerance value
not matching, underflow
NMAL Tolerance value exceeded
not matching, overflow
INV Measurement invalid
invalid
OK all tolerances matched
深圳德标仪器
135-1095-0799