Question about Motorola Talkabout T6550R (14 Channels) 2-Way Radio

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Don't communicate have a pair of T6550R radios...have set them to same channel and interference codes....just can't get them to receive/communicate with each other....are they faulty or is there something I'm not doing?

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Re: don't communicate

Thank you very much for the tip. It was help ful

Posted on Feb 25, 2007

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Re: don't communicate - Motorola Talkabout T6550R (14 Channels) 2-Way Radio Two-Way Radios

Thank you very much for the tip

Posted on Feb 25, 2007

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Re: don't communicate

Im not sure if I have submited a solution but check if you have the QT (Quite Tone) option in one of this radios. If every thing is correct, replace the radio, because those radios are unserviciable, sorry for that. Neto

Posted on Dec 16, 2006

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4 radio communication

Pls swotch off qt & keep the same channel also keep all privacy codes to 0 , try ur set it will get connected to rest 3 , do not forget to keep privacy code 0

Jun 05, 2013 | Motorola Talkabout T5500 (7 Channels)...

1 Answer

I have 2 SX709 handsets. When set to a number other than zero (on any channel) they communicate between each other well, but can't receive transmission from other sets. When set to zero, they will receive,...

Sounds like a receive sensitivity issue. The radio you have with the static is likely very sensitive to other RF (radio frequency waves) in the area. Turning on the interference eliminator code (setting it to a number) blocks out this unwanted noise. This radio is not repairable, and there is no fix for this problem. The only fix would be to set the "other sets" to have the same code.

best regards.

Mar 14, 2011 | Motorola Talkabout T5720 (7 Channels)...

1 Answer

I want to communicate from t5720 talkabout to midland lxt303. When I set them to the same channel the talkabot gets out but will not receive unless I press the MON button on the face of the radio

Set your interference eliminator code on the T5720 and the Qt filter both to zero. You have one or both turned on. By setting them to zero you will turn them off. Then your radios should work together.

Mar 14, 2009 | Motorola Talkabout T5720 (7 Channels)...

1 Answer

T5950 Talk abouts

They are probably not programmed to match one another. There are 3 key settings on these radios: Frequency, Interference Eliminator and Qt Filter. If you walk through the programming instructions for each of these and set them identically, they should communicate.

Feb 03, 2009 | Motorola Talkabout T5950 (7 Channels)...

2 Answers

Motorola Talkabout FV700 not transmitting nor receiving

To troubleshoot: Unlock your keypad lock, then reprogram your radios to the following settings. (Check function after each change)
1) Shut off the Interference Eliminator (set to zero).
2) Turn off the Qt filter.
3) Vox setting to off.

By shutting off all the "bells and whistles" of the radio, you will take it back to being just simply on a frequency. If your radios do not communicate with one another then, or with your friend's radios, you have radio which is failing to operate.

If the radios do work in this simple mode. One by one add the special features back until you discover the culprit.

Dec 26, 2008 | Two-Way Radios

1 Answer

Motorola FV500 - lots and lots of noise on line..

Hello hanshez,

It's also possible that the noise is being caused by local interence. You could try using a different channel. Disable your interference eliminator function and try listening to the various channels to find a quiet one. The interference codes don't actually eliminate interference they just keep you from hearing activity on the channel that can still interfere with your communications.

As long as there isn't other activity on the channel your radios should be able to communcate. Are the radios able to communicate with each other when you are in the same room? Does the problem occur when your son gets further away? Or when he is outside and you are inside? If so, the issue may be one of range.

These kinds of two-way radios are very good for communiations when the users are within line-of-sight of each other. However communications can become blocked by tall trees and buildings, if one user is inside a building or automobile, etc. The 8-mile range that Motorola lists is really only practical when one user has some altitude over the other and clear line-of-sight, such as being on top of a tall hill outdoors with no nearby buildings. For typical communications over relatively flat ground with no obstructions, I would expect a more typical range of less then one mile. Obstructions can lower this effective communications range even more.

Hope this helps.
"Go Ahead. Use Us."

Jun 20, 2008 | Motorola FV500 2-Way Radio

1 Answer


can they talk to each other?
check the tx and rx frequency.
Check the subtones, are they TPL or DPL?

May 23, 2008 | Motorola Talkabout T6500 (7 Channels)...

2 Answers

Problem transmitting

Hello jayhawkrx,

Check the Continuous Tone Coded Squelch (CTCSS) settings on all the radios. (Note that some manufacturers refer to this feature as a Privacy Code or Quiet Code. The actual name of the feature may vary.) This feature encodes a low-frequency signal on your radio transmission. This signal is below the range of human hearing but can be detected by other radios. When the CTCSS feature is active your radio will ignore any signal that it receives that does not have the proper tone encoded on it.

In order for these radios to communicate, all of the radios need to be on the same channel and have the same CTCSS code programmed or the CTCSS feature must be disabled.

I suspect that CTCSS is activated on one of your radios but not on the other. This would result in the situation you describe.

Also take note that when using different brands / models of radios to communicate with one another that the CTCSS code numbering scheme may not necessarily be the same from radio to radio. For instance, CTCSS code 4 on the Motorola TalkAbout series actually corresponds to code A on the Motorola Sport models.

Best Regards,

Agent Ken
Go Ahead. Use Us.

Mar 09, 2008 | Motorola Talkabout T5720 (7 Channels)...

2 Answers

Pair of radios won't talk to each other

Have you checked the QT filter? The T5950 have an addtional interference filter called the QT filter. It filters out other radios and allows Motorola radios to speak only to other Motorola radios with the filter. Check the QT setting on both radios by pushing the menu button 6 times, the QT setting will show. If it shows a straight line on the display the filter is not on. Now push the + button (beside the menu button), to turn the QT filter on (a Y will show on the screen when on) or the - button to turn it off (the line will show when filter is off). The radios have to match all channels and all filters to talk to each other.

Dec 09, 2007 | Motorola Talkabout T5950 (7 Channels)...

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