MEASurement Commands 2
N1911A/1912A P-Series Power Meters Programming Guide 135
READ[1]|2|3|4[:SCALar][:POWer:AC]:DIFFerence?
[<expected_value>[,<resolution>[,<source list>]]]
This command sets the specified window’s measurement function to
difference mode with relative mode off, aborts 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.
INITiate:CONTinuous must be set to OFF on both channels, otherwise error –213,
“INIT ignored” occurs. If TRIGger:SOURce is set to BUS on either channel, error –214,
“Trigger deadlock” occurs.
:POW
:AC
?
:SCAL
:DIFF
Space
expected_value
DEF
resolution
,
DEF
source list
,
READ
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
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