HP E4418B Programming Guide

prog.book : ch2meas.fm 31 Mon Feb 15 09:24:37 1999
MEASurement Instructions
FETCh[1|2][:SCALar][:POWer:AC]:RATio? [<expected_value>[,<resolution>[,<source list>]]]
HP E4418B/E4419B Programming Guide 2-31
FETCh[1|2][:SCALar][:POWer:AC]:RATio?
[<expected_value>[,<resolution>[,<source list>]]]
This command is only relevant for the HP E4419B power meter.
This command sets the specified window’s measurement function to power
ratio with relative mode off, 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]:POWer:RATio.
Syntax
Parameters
Refer to “The 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
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
2
1.0, 0.1, 0.01, 0.001
DEF
1
FETC
1
2
:POW
:AC
:SCAL
:RAT
?
Space
expected_value
DEF
resolution
,
DEF
source list
,

HP E4418B Specifications

General

Brand	HP
Model	E4418B
Category	Measuring Instruments
Language	English