prog.book : chapter1.fm 46 Mon Feb 15 09:24:37 1999
Power Meter Remote Operation
Using Frequency Dependent Offset Tables
1-46 HP E4418B/E4419B Programming Guide
Making the Measurement
To make the power measurement, set the power meter for the frequency of
the signal you want to measure. The power meter automatically sets the
calibration factor. Use either the INITiate,FETCh? or the READ? query
to initiate the measurement as shown in the following program segments:
INITiate Example
ABORt1
CONFigure1:POWer:AC DEF,1,(@1)
SENS1:CORR:CSET2:SEL "Offset1"
SENS1:CORR:CSET2:STAT ON
SENSe1:FREQuency 500KHZ
INITiate1:IMMediate
FETCh1?
READ? Example
ABORt1
CONFigure1:POWer:AC DEF,2,(@1)
SENS1:CORR:CSET2:SEL "Offset1"
SENS1:CORR:CSET2:STAT ON
SENSe1:FREQuency 500KHZ
READ1?
Note If the measurement frequency does not correspond directly to a
frequency in the frequency dependent offset table, the power
meter calculates the offset using linear interpolation.
If you enter a frequency outside the frequency range defined in the
frequency dependent offset table, then the power meter uses the
highest or lowest frequency point in the table to set the offset.
To find out the value of the offset being used by the power meter to
make a measurement, use the query command:
SENSe:CORRection:GAIN4|FDOFfset[:INPut][MAGNITUDE]?
The response may be an interpolated value.
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