Rohde & Schwarz CMU-K20, Operating Manual

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CMU-K20/21/22/23/24 Common: POWer:FRAMe
1115.6088.12 6.53 E-12
Single Result
READ[:SCALar]:POWer:FRAMe:FPOWer<nr>? Start single shot measurement and return results
FETCh[:SCALar]:POWer:FRAMe:FPOWer<nr>? Read out measurement results (unsynchronized)
SAMPle[:SCALar]:POWer:FRAMe:FPOWer<nr>? Read out measurement results (synchronized)
Returned Values Description of parameters Def. value Def. unit FW vers.
–100 dBm to 100 dBm Avg. power in slot <nr> NAN dBm V2.15
Description of command
These commands are always queries. They start a measurement and return the average power in a particular
frame (numbered by <nr>=1 to 256, corresponding to frame 0 to frame 255 of the graphical user interface).
P/Slot Graph Results
READ:ARRay:POWer:FRAMe? Start single shot measurement and return results
FETCh:ARRay:POWer:FRAMe? Read out measurement results (unsynchronized)
SAMPle:ARRay:POWer:FRAMe? Read out measurement results (synchronized)
Returned Values Description of parameters Def. value Def. unit FW vers.
–100 dBm to 100 dBm,
...
–100 dBm to 100 dBm Avg. power in slot 0,
...,
Avg. power in slot Slot 255 NAN,
...,
NAN dBm,
...,
dBm V2.15
Description of command
These commands are always queries. They start a measurement and return all measurement results. The
returned list contains the average burst power of the mobile phone in 256 consecutive timeslots.
Subarray Results
READ:SUBarrays:POWer:FRAMe? Start single shot measurement and return results
FETCh:SUBarrays:POWer:FRAMe? Read out measurement results (unsynchronized)
SAMPle:SUBarrays:POWer:FRAMe? Read out measurement results (synchronized)
Ret. values per subrange Description of parameters Def. value Def. unit FW vers.
–100 dBm to 100 dBm,
...
–100 dBm to 100 dBm Avg. power in first slot,
...,
Avg. power in last slot NAN
...
NAN dB
...
dB V2.15
Description of command
These commands are always queries. They output the burst power versus time in a fixed ¼- bit pattern and in
the subranges defined by means of the
CONFigure:SUBarrays:POWer[:NORMal][:GMSK]:MPR
command.
In the default setting of the configuration command the
READ:SUBarrays..., FETCh:SUBarrays..., and
SAMPle:SUBarrays...
command group is equivalent to the
READ:ARRay..., FETCh:ARRay..., and
SAMPle:ARRay...
command group described above.
The
CONFigure:SUBarrays:POWer[:NORMal][:GMSK]:MPR
command defines a maximum of 32
subranges. If one of the statistical modes
(ARIThmetical, MINimum, MAXimum)
is set, only one value is
returned per subrange.
The calculation of current, average, minimum, and maximum results is explained in chapter 3 (cf. display mode ).
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