Rohde & Schwarz CMU-K20, Operating Manual

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Signalling: POWer:ABURst CMU-K20/21/22/23/24
1115.6088.12 6.138 E-12
Subsystem SUBarrays:POWer
The subsystem SUBarrays:POWer defines the measurement range and the type of output values.
CONFigure:SUBarrays:POWer:ABURst[:GMSK] Definition of Subarrays
<Mode>,<Start>,<Samples>{,<Start>,<Samples>}
<Mode> Description of parameters Def. value Def. unit
ALL |
ARIThmetical |
MINimum |
MAXimum |
IVAL, Return all measurement values
Return arithm. mean value in every range
Return minimum value in every range
Return maximum value in every range
Return single interpolated value at <Start> ALL –
<Start>
Description of parameters Def. value Def. unit
–10 bit to 96 ¾ bit, Start time in current range –10 bit
<Samples>
Description of parameters Def. value Def. unit FW vers.
1 to 428 Number of samples in current range 428 – V3.0
Description of command
This command configures the
READ:SUBarrays:POWer..., FETCh:SUBarrays:POWer...,
and
SAMPle:SUBarrays:POWer
commands. It restricts the measurement to up to 32 subranges where either all
measurement results (the number of which is given by the second numerical parameter) or a single statistical
value is returned. The subranges are defined by the start time and the number of test points which are located on
a fixed, equidistant grid with a step width of ¼ bit. If <Start> does not coincide with a test point then the range will
start at the next test point that is larger than <Start>.
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 POWer 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 access burst power
measurement. They correspond to the graphical menu
Power with its various display elements.
Subsystem POWer:ABURst...
The subsystem POWer:ABURst... contains the commands for measurement and output of the access
burst power and its comparison with tolerance values. The subsystem corresponds to the graphical
measurement menu
Power.
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