Programming an Analog Transmit Power Measurement
Last updated: October 28, 2004
This section provides an example of how to make Analog Transmit Power (ATXP) measurements via GPIB.
The following program example assumes that the mobile's antenna output is connected to the RF IN/OUT connector, and the mobile is on an analog voice channel (AVC). For information on configuring the test set to get the mobile on an active call, see
Establishing an Active Link with the Mobile Station
.
The basic procedure to test Analog Transmit Power is as follows:
-
Enter the expected power level.
-
Define the Analog Transmit Power Setup parameters as desired for triggering, measurement timeout, and multi-measurements.
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Use the INITiate:ATXPower command to trigger the measurement.
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Use the FETCh? command to obtain the measurement results.
Programming Example
10 !Set the expected power level.
20 OUTPUT 714;"SETup:ATXPower:CONTinuous Off" !Set the analog transmit power
30 !measurement to single trigger mode.
40 OUTPUT 714;"SETup:ATXPower:TIMeout 1S" !Set a timeout value of 1 second
50 !in case the measurement cannot be made.
60 OUTPUT 714;"SETup:ATXPower:COUNt:NUMBer 5" !Set multi-measurements to 5.
70 OUTPUT 714;"INITiate:ATXPower" !Start the measurement.
80 OUTPUT 714;"FETCh:ATXPower?" !Query the returned integrity indicator and the
90 !Average analog transmit power measurement.
100 ENTER 714;Integrity,Atxpower !Enter the returned values into variables.
110 IF Integrity=0 THEN !See if the integrity value = 0 (valid measurement).
120 ELSE
130 PRINT "Measurement problem; check for signal level over/under range condition."
140 END IF
150 END
Returned Values
The measurements returned by this program are:
-
Integrity returns the measurement integrity indicator (see
Integrity Indicator
); 0 means a successful measurement with no errors.
-
Atxpower returns the Average Analog Transmit Power measurement value in dBm.
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