MEASurement Commands 2
N1911A/1912A P-Series Power Meters Programming Guide 119
FETCh[1]|2|3|4[:SCALar][:POWer:AC]:DIFFerence:
RELative? [<expected_value>[,<resolution>[,<source list>]]]
This command sets the specified window’s measurement function to power
difference with relative mode on, recalculates the measurement and places
the results on the bus. The result is a ratio based measurement and is
expressed in the units defined by UNIT[1]|2|3|4:POWer:RATio. The
relative value used is that set by the
CALCulate:RELative:MAGNitude:AUTO command.
Syntax
Parameters
Refer to “Optional Parameters” on page 90 for additional details on the
parameters in this command.
:POW
:AC
:SCAL
:DIFF
:REL
?
Space
expected_value
DEF
resolution
,
DEF
source list
,
FETC
1
2
3
4
Item Description/Default Range of Values
expected_value
(for the expected
power level)
The expected power level parameter can be
set to DEF or a numeric value. If a value is
entered it should correspond to that set by
CONFigure otherwise an error occurs.The
units of measurement are dBm and W. The
default units are defined by UNIT:POWer.
sensor dependent
DEF
1
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