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My Motorola mr350 2 way radios are brand new but just stopped communicating. I cannot hear or talk using any of them. Don't know how to fix it

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  • Radio Commun... Master
  • 1,654 Answers

Try reprogramming your radios back to a very basic mode with all the special features turned off (or set to zero), including the interference eliminator code, Qt filter (if any), and call alerts, etc. Make certain your frequency matches on both radios. The radios should communicate easily in this configuration. If not, since they are new radios, contact Motorola using the number your user guide and talk to them about warranty replacement.
Best regards.

Posted on May 09, 2013

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Posted on Jan 02, 2017

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Benimur
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SOURCE: communications

Hi,

Yes, but depends on the configuration/setup and programming/frequency assignation of the MTS2000.

To my knowledge, the UHF version of the Motorola MTS2000 are designed to operate either in the 403~470Mhz or the 450~512 or 520MHz band.

On the other hand, Motorola TalkAbout Radio are design limited to operate in the FRS band which is 462.5625~462.7250MHZ and/or the GMRS band which is 462.550~467.725.

So technically, both the MTS2000 and the FRS/GMRS share some frequencies. What needs to be done is to re-program the frequency allocation of the MTS2000 into its channels to match the TalkAbouts frequencies. The other way around is not possible. TalkAbouts frequency assignments can not be reprogrammed/changed. Below are typical TalkAbout Channels/Frequencies.de11c4e.jpg

Hope this be of help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Posted on Feb 04, 2008

eradiostore
  • 1654 Answers

SOURCE: motorola t5100 cant hear the other person talking into the radio

Check to see you have the radios set to the same frequency and interference eliminator code as one another. This would be the most likely cause.

Here is a link to the owners manual http://www.motorola.com/mdirect/manuals/T50-T55_UserGuide.pdf

Posted on Sep 27, 2008

eradiostore
  • 1654 Answers

SOURCE: motorola t6500

You need to set your interference eliminator code to zero, and your Qt filter to zero also. Here is a link to the owners manual: http://direct.motorola.com/ENS/T6500%20Series%20User%20Manual.pdf

What is happening is your T6500 is set to ignore radios which do not match the same code. The fact your Cobras can hear the T6500 indicates they are set with their interference eliminator turned off (aka no code).

A similar occurance will happen if the Qt filter is set to anything but zero. The Qt filter is unique to Motorola. These features are beneficial when you are in a high radio traffic area and you want to block out hearing other people. But in your situation, you are mixing radios, and the easiest way to make them match is to turn off the special features (aka set them to zero).

Posted on Oct 17, 2008

  • 3287 Answers

SOURCE: I can't get the radios

These are multi-channel FRS / GMRS radios. In order to receive transmitted signals from the other radio, they both must be set to the same Channel and the same Interference Eliminator Code. One without the other will keep audio from being heard on the receiving radio.

I suspect you need to refresh yourself with the radio's controls and settings. If you have lost the manual, you can get a copy free of charge from Motorola You'll need a free program called Adobe Reader to view it.

Once you have everything - look at the right hand side of page 1 for "Talking and Listening" followed by "Menu Options" to set the radios up correctly. Keep in mind that if VOX is selected, and there is sound near both radios, they both will transmit at the same time - since the radios receive OR transmit at any given time, no audio will be heard from either.

Please rate this reply if helpful & good luck!

Posted on Aug 18, 2010

Ironfist109
  • 3018 Answers

SOURCE: How do I change and

Hello,
This radio comes with programmed channels and tone codes programmed into it. Should it still be stock the the diagram below is what you will use. The tones programed into are there to prevent someone on the same frequency from interfering with your conversation. It's a way of isolating the frequency. These are adjusted by the A,B,C,D You will know what frequency it is by the channel indicated. As for weather or not it will communicate with a Motorola talk about the answer is no. This radio is a VHF frequency and the talk about is MURS.
Regards, Tony

Channel - Pre-Loaded VHF Frequency (MHz) - Code (Hz)
1 151.6250 67.0 2 151.6250 77.0 3 151.6250 88.5 4 151.6250 179.9 5 151.6250 None 6 151.9550 67.0 7 151.9550 82.5 8 151.9550 94.8 9 151.9550 179.9 10 151.9550 None

Posted on Apr 17, 2011

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