How Do I Make a FM Broadcast test?

How to configure the parameters to perform FM receiver testing?

1. Turn off RF IN/OUT Amplitude Offsets.

   1. Press SYSTEM CONFIG key .
   2. Press RF IN/OUT Amptd Offset ( F5 ).
   3. Press RF IN/OUT Amptd Offset Setup ( F2 ).
   4. Set the RF IN/OUT Amptd Offset State to Off.

2. Set the Operating Mode to CW.

   1. Press CALL SETUP key .
   2. Set the Operating Mode to CW.

3. Configure the FM Broadcast Parameters .

   1. Press RF GEN Configure ( F10 ), this displayed the RF GEN Configure menu .
   2. Use the knob to scroll to and highlight FM Broadcast. The test set is in the correct mode to perform FM receiver testing.
   3. All the FM Broadcast parameters are now visible in the control menu and you can use the knob to set the FM Broadcast Parameters .

How to set up and test the Mobile Station's demodulated FM output?

This procedure provides an example method for testing the Mobile Station's FM receiver performance. It involves the test set's audio analyzer measurement capability.

1. Set up the FM Broadcast test system.
   1. Connect the FM Adapter to the test set's RF OUT ONLY port.
   2. Connect the Mobile Station's RF antenna to the output of the FM Adapter.
   3. Connect the Mobile Station's demodulated FM output to the test set's HI AUDIO INPUT connector.

   The test set's AUDIO INPUT connectors (HI or LO) are different inputs, therefore unless a different measurement is needed, it is recommended that you ground the LO connector and connect the audio signal to the HI connector.

2. Initiate the Audio Analyzer measurement in the test set.

   1. Press Measurement Selection key .
   2. Select GSM Analog Audio.

3. Press Analog Audio Setup ( F1 ), this displayed the Analog Audio Setup menu .

4. Configure the GSM Analog Audio measurement parameters.

   For example, to view the measurement results for the SINAD Distortion Rate State, the state must be set to ON.

Related Topics

FM Broadcast

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