Measurement Commands
READ[1]|2|3|4[:SCALar][:POWer:AC]:RATio? [<expected_value>[,<resolution>[,<source list>]]]
EPM-P Series Power Meters Programming Guide
2-51
READ[1]|2|3|4[:SCALar][:POWer:AC]:RATio? [<expected_value>[,<resolution>[,<source
list>]]]
This command sets the specified window’s measurement function to ratio
mode with relative mode off, aborts then initiates both channel A and B,
calculates the ratio measurement result and places the result 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
.
Note
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.
Syntax
Parameters
Refer to “Optional Parameters”, on page 2-3 for additional details on the
parameters in this command.
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
:POW
:AC
?
:SCAL
:RAT
Space
expected_value
DEF
resolution
,
DEF
source list
,
READ
1
2
3
4
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