Question about Motorola MU21CV (1 Channel) 2-Way Radio

1 Answer

It appears that my mike on one unit does not work.

The codes and chanels match but one of the units can not be heard as though the mike does not work. Can I solve or trouble shoot?

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  • cottons84 Mar 04, 2009

    I had already done the code and frequency check. They match. No obstructions as well.

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  • Motorola Master
  • 1,640 Answers

Check your programming by holding in the PTT button while turning on the radio. The first announced number is your frequency. Press the MONITOR button, and then it will announce your code. Press the MONITOR button again finish. Then shut the radio off and back on for normal operations.

If the numbers on your radios do not match, you can use your PTT button to change the number it has announced. Press the MONITOR button to lock in your new setting after setting the frequency and/or code.

Final thought, check your mic hole on the face of the radio to be certain is does not have debris or tape over it.

Posted on Mar 04, 2009

  • eradiostore
    eradiostore Mar 04, 2009

    If the freq/code match, and the mic hole is not blocked, your radio is in need of repair. (Sorry) Motorola no longer supports this model at the repair facility. You would need to take or send the radio to a repair center. (As a sidenote: If you do not have a servicer in your area we do offer a flat rate of $69.)

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