Troubleshooting Audio Issues with Mobile Transmitters
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Questions and Answers

Which of the following could be causing the high-pitched whine on the audio from your mobile transmitter?

  • Noise on the vehicle’s electrical system is being transmitted along with your speech audio (correct)
  • You need to adjust your squelch control
  • Your microphone is picking up noise from an open window
  • You have the volume on your receiver set too high

    • What action should you take if you hear a high-pitched whine on the audio from your mobile transmitter?

  • Lower the volume on your receiver
  • Close the open window to reduce noise interference
  • Adjust the squelch control (correct)
  • Disconnect the vehicle's electrical system

    • Why might the volume on your receiver being set too high not be the cause of the high-pitched whine on the audio from your mobile transmitter?

  • The high-pitched whine is not related to the volume level (correct)
  • The high-pitched whine is caused by noise on the vehicle's electrical system
  • The high-pitched whine is caused by noise from an open window
  • The high-pitched whine is caused by the squelch control

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