Programming a Decoded Audio Measurement

Last updated: December 3, 2008

This measurement is not applicable to GPRS or EGPRS.

This section provides an example of how to make a Decoded Audio (DAUDio) measurement. The following procedure assumes that an active link is established between the test set and the mobile station. See Establishing an Active GSM Link with the Mobile Station .

Configure decoded audio measurement parameters using the SETup subsystem.
Setup the audio source to stimulate the mobile station with a pulsed audio signal.
Start the decoded audio measurement using the INITiate subsystem.
Use the FETCh? command to obtain decoded audio measurement results.

Programming Example

 
10    OUTPUT 714;"SETUP:DAUDIO:CONTINUOUS OFF"         ! Configures the decoded audio
20                                                     ! measurement to single trigger mode.
30    OUTPUT 714;"AFGENERATOR:PULSE:STATE ON"          ! Audio signal must be pulsed.
40    OUTPUT 714;"AFGENERATOR:VOLTAGE:SAMPLITUDE 100MV"
50    OUTPUT 714;"AFGENERATOR:FREQUENCY 2.1KHZ"
60    OUTPUT 714;"SETUP:DAUDIO:FILTER:SFREQUENCY 2.1KHZ"! Specifies the tunable
70                                                      ! bandpass filter frequency
80                                                      ! and set the filter state to on.
90    OUTPUT 714;"INITIATE:DAUDIO"
100   OUTPUT 714;"FETCH:DAUDIO?"                        ! Fetch the decoded audio results.
110   ENTER 714;Ingerity,Decoded_audio
120   END

Returned Values

The measurements returned by this program are:

Integrity returns the measurement Integrity Indicator (0 means a successful measurement with no errors).
Decoded_audio returns the decoded audio measurement results in percent (%).

Programming a Decoded Audio Measurement

Programming Example

Returned Values

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