Example - HP E4418B Programming Manual

Power Meter Remote Operation
Setting Offsets

Example

The following example program, in HP Basic, details how to use the
channel and display offsets on an HP E4419B making a channel A/B ratio
measurement. The final result will be:
A
 
-------------------------- -
 
B
10 !Create I/O path name
20 ASSIGN @POWER TO 713
30 !Clear the power meter's interface
40 CLEAR @POWER
50 !Set the power meter to a known state
60 OUTPUT @POWER;"*RST"
70 !Configure the Power Meter to make the measurement
80 OUTPUT @Power;"CONF:POW:AC:RAT 20DBM,2,(@1),(@2)"
90 !Set the measurement units to dBm
100 OUTPUT @POWER;"UNIT:POW DBM"
110 !Set the power meter for channel offsets of -10 dB
120 OUTPUT @POWER;"SENS1:CORR:GAIN2 -10"
130 OUTPUT @POWER;"SENS2:CORR:GAIN2 -10"
140 !Enable the gain correction
150 OUTPUT @POWER;"SENS:CORR:GAIN2:STATe ON"
160 OUTPUT @POWER;"SENS2:CORR:GAIN2:STATe ON"
170 !Set the power meter for a display offset of -20 dB
180 OUTPUT @POWER;"CALC1:GAIN -20 DB"
190 PRINT "MAKING THE MEASUREMENT"
200 !Initiate the measurement
210 OUTPUT @Power;"INIT1:IMM"
220 OUTPUT @Power;"INIT2:IMM"
230 ! ... and get the result
240 OUTPUT @Power;"FETC:POW:AC:RAT? 20DBM,2,(@1),(@2)"
250 ENTER @Power;Reading
260 !
270 PRINT "The measurement result is ";Reading;"dB."
280 END
For further information on channel offsets refer to page 9-25 through
page 9-35.
For further information on display offsets refer to page 3-4.
1-52
10
–
 20 
dBm
–
 
10
–
dBm dB
HP E4418B/E4419B Programming Guide