Keysight N1911A

MEASurement Commands 2
N1911A/1912A P-Series Power Meters Programming Guide 137
FETCh[1]|2|3|4[:SCALar][:POWer:AC]:DIFFerence?
[<expected_value>[,<resolution>[,<source list>]]]
This command sets the specified window’s measurement function to power
difference with relative mode off, recalculates the measurement and places the
results on the bus. The result is a power based measurement and is expressed in
the units defined by UNIT[1]|2|3|4:POWer.
Syntax
Parameters
Refer to “Optional Parameters” on page 112 for additional details on the
parameters in this command.
:POW
:AC
:SCAL
:DIFF
?
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
[a]
resolution A numeric value for the resolution. If it is unspecified the
current resolution setting is used. If a value is entered it
should correspond to the current resolution setting otherwise
an error occurs.
1 to 4
[b]
1.0, 0.1, 0.01, 0.001
DEF
[a]