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

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Motorola GM300 Base Station

We have a Motorola GM300 radio base station that is giving us problems with interference issues. Sometimes when we transmit from the base station the communication comes through garbled to some radios and ok to others, and other times the people at the base station cannot get a clear transmisson they can understand. We were told by our local rep. for Motorola that we have another user on our freq., but they are located at least 40 miles away so there should be no interference. Can you please help?

Thank you,

Caleb Van ****

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It could also be another user that is +/- 12.5kc from your frequency. this would explain why you can here other people but not understand them.

pat N5SLI

Posted on Sep 05, 2008

Check your power supply,antenna,antenna cable........
for good range better you provide Reapeter
sadhik

Posted on Aug 02, 2008

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Try lowering your antenna slightly. Height and placement of antenna determines range, the higher your antenna the further your radio will talk and listen. By lowering your antenna you can determine if the user 40 mi away is interfering or not.

I also agree with dobhan, check your power supply.

Posted on Jun 24, 2008

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Pls check your power supply it can cause a garbled audio once the power supply is not regulated or constant voltage so your transmission also is defective,check also the connector it should be tighten,if not do change your microphone for temporary......

Posted on May 23, 2008

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Is there a way you can move the base station to another location in your house to see if the problem get better? I don't beleive your base station is faulty, I suspect interference from something.

I don't think the 2.4GHz set is causing any issues, but you never know, try unplugged it for a while to investigate.

If you do determine that the base station is faulty there probably isn't many options to get it repair other than sending it to Panasonic. May be cheaper to buy a new base station to go with your extra handsets.

Good Luck!

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You don't give much information to go on here; it would have been a great help if you'd added details of the make and model and whether the problem occurs some or all of the time.

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