prog.book : ch2meas.fm 38 Mon Feb 15 09:24:37 1999
MEASurement Instructions
READ[1|2][:SCALar][:POWer:AC]:RELative? [<expected_value>[,<resolution>[,<source list>]]]
2-38 HP E4418B/E4419B Programming Guide
READ[1|2][:SCALar][:POWer:AC]:RELative?
[<expected_value>[,<resolution>[,<source list>]]]
This command sets the specified window’s measurement function to single
channel with relative mode on, aborts then initiates the specified channel,
calculates the 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]:POWer:RATio. The relative value used is that set by the
CALCulate:RELative:MAGNitude:AUTO command.
Note INITiate:CONTinuous must be set to OFF, otherwise error -213,
“INIT ignored” occurs. If TRIGger:SOURce is set to BUS, error
-214, “Trigger deadlock” occurs.
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 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.
sensor dependent
DEF
1
READ
1
2
:POW
:AC
?
:SCAL
:REL
Space
expected_value
DEF
resolution
,
DEF
source list
,