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CMU-K20/21/22/23/24 Common: SPECtrum:MODulation
1115.6088.12 6.109
E-12
For <Mode> = IVAL, the <Samples> parameter is ignored and the CMU returns a single measurement value
corresponding to the abscissa value <Start>. If <Start> is located beween two test points with valid results then
the result is calculated from the results at these two adjacent test points by linear interpolation.
The subranges may overlap but must be within the total range of the
spectrum due to modulation
measurement.
Test points outside this range are not measured (result
NAN)
and do not enter into the ARIThmetical, MINimum
and MAXimum values.
By default, only one range corresponding to the total measurement range is used and all measurement values
are returned.
Measured Values
The commands of the following subsystems determine and return the results of the spectrum due to
modulation measurement. They correspond to the graphical menu
Spectrum
with its various display
elements.
Subsystem SPECtrum:MODulation
The subsystem
SPECtrum:MODulation
measures and returns the frequency spectum (due to modula-
tion) and compares it with tolerance values. The subsystem corresponds to the graphical measurement
menu
Spectrum.
READ[:SCALar]:SPECtrum:MODulation[:GMSK]?
Scalar
Results:
READ[:SCALar]:SPECtrum:MODulation:EPSK?
Start single shot measurement and return results
FETCh[:SCALar]:SPECtrum:MODulation[:GMSK]?
FETCh[:SCALar]:SPECtrum:MODulation:EPSK?
Read measurement results (unsynchronized)
SAMPle[:SCALar]:SPECtrum:MODulation[:GMSK]?
SAMPle[:SCALar]:SPECtrum:MODulation:EPSK?
Read measurement results (synchronized)
Returned values
Value range
Def. value
Def. unit
FW vers.
Reference Power,
Matching
–100.0 dBm to +100.0 dBm
INV | MATC | NMAT | OUT | NTR | NRAM | OFLW |
UFLW | NTSC | OFF
NAN
INV
dBm
–
V1.20
Description of command
These commands are always queries.
-
READ
starts a single shot measurement and returns the results.
-
FETCh
outputs the current results regardless of the measurement state.
-
SAMPle
waits until the results are valid for the first time (depending on the chosen statistic count) and then
outputs the results.
For more details refer to the description of measurement control in chapter 5 of the CMU200 operating manual.
深圳德标仪器
135-1095-0799
Содержание CMU-K20
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