Measurement Control CMU
1100.4903.12 5.34 E-8
Generator Status
The generator status can be queried by means of the FETCh...? command:
FETCh command
FETCh:<meas_obj>:STATus?
Return the current generator status. The FETCh... command can be used to
poll the generator status. The FETCh... query returns one of the following gen-
erator states:
OFF generator is in the OFF state (default status after *RST or due to
ABORt... command).
RUN generator running (RUN state after INITiate... command).
ERR generator is in the OFF state because it could not be started with an
INITiate... command for lack of resources (e.g. the RF connec-
tor is already in use by another generator).
Measurement Statistics
The repetition mode defines how many evaluation periods are measured if the measurement is not
stopped explicitly (measurement control commands STOP..., ABORt...) in the meantime. In case
of remote control the three repetition modes Single Shot, Continuous and Counting are available
(Counting is not available in manual control, see Chapter 3).
Table 5-7 Repetition mode in remote control
Repetition mode Description Command
Single Shot The measurement is stopped after one
evaluation period, i.e., after evaluation of
the trace over the whole time/frequency
range.
CONFigure:<meas_obj>:CONTrol:REPetition
SINGleshot, <StopCondition>, <Stepmode>
(in RF: <meas_obj> = POWer | SPECtrum)
Continuous The measurement is continued until
explicitly stopped. Results are valid after
one evaluation period and updated after
the next evaluation period has been
terminated.
CONFigure:<meas_obj>:CONTrol:REPetition
CONTinuous, <StopCondition>, <Stepmode>
(in RF: <meas_obj> = POWer | SPECtrum)
Counting Repeated single shot measurement with
a definite number of evaluation periods.
The stepping mode (<Stepmode> =
STEP | NONE) determines whether the
measurement is stopped after each
evaluation period or not, see section
Measurement Control Com-
mands and States
on page 5.28.
CONFigure:<meas_obj>:CONTrol:REPetition
1 ... 10000, <StopCondition>, <Stepmode>
(in RF: <meas_obj> = POWer | SPECtrum)
(A counting measurement with 1 evaluation period is equiva-
lent to a single shot measurement.)
The statistical evaluation is more refined for the digital network tests, see the relevant operating manu-
als. In particular, the counting mode is extended by introduction of statistics cycles consisting of an
integer number of evaluation periods.
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