2 MEASurement Commands
152 N1911A/1912A P-Series Power Meters Programming Guide
MEASure[1]|2|3|4[:SCALar][:POWer:AC]:DIFFerence?
[<expected_value>[,<resolution>[,<source list>]]]
This command applies to the N1912A power meter only, as it needs two
measurement channels to make sense.
This command sets the specified window’s measurement function to
difference mode with relative mode off, aborts, configures then initiates
both Channel A and B, calculates the difference measurement result and
places the result 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 90 for additional details on the
parameters in this command.
:POW
:AC
?
:SCAL
:DIFF
Space
expected_value
DEF
resolution
,
DEF
source list
,
MEAS
1
2
3
4
Item Description/Default Range of Values
expected_value
(for the expected
power level)
The power meter ignores the numeric value
entered in this parameter. Any value entered is
treated like DEF.
sensor dependent
DEF
1