Question about Motorola Talkabout T6310 (14 Channels) 2-Way Radio

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VOX Transmit is "pulsing". Also, no wx channel reception

I bouhgt a pair of these a few years back. I'm only now trying to use the VOX feature. One of the units seems to be mis-behaving. The first thing I noticed was that when in VOX mode, the transmit won't stay on even though I'm speaking in a long continuous sentences and I've tried all three sensitivity levels. The "tx pulsing rate" is very regular and seems in no way related to my speach. Also the wx channel reception is zero even though the other radio works well in both regards. Can these things be repaired?

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Re: VOX Transmit is "pulsing". Also, no wx channel...

Check if the mic is not dirty, there is nothing that you can do to fix this problem.

Posted on May 07, 2007

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Motorola Talkabout MR will not transmit

From reading through your settings, they appear to be identical. Except, I am not certain what Vox 2 is, or B5 0. If the number 2 beside VOX is a setting, you should set it to off or zero. Otherwise, they appear like they should work. (VOX = voice activation, and when enabled will cause a radio to transmit when it hears a sound, voice, etc.)
If you are using an audio device such as an earpiece or headset, be certain you are plugging it in with the radio turned OFF.
Lack of transmit can also be a sign of a bad battery or bad battery connection. You might try swapping the batteries and see if the problem moves to the other radio.
If these are less than one year old, use the number in your user guide to contact Motorola for a possible warranty replacement.

Best regards.

May 18, 2013 | Motorola Talkabout T5700 AA (22 Channels)...

1 Answer

Motorola T5725 - Earpiece with mic wont work

A few things you might check:
1) Be certain the radio is turned off when plugging in any audio device.
2) Be certain the device is plugged in all the way. You should feel it seat, or click into place.
3) Use a device designed for your model radio. Aftermarket accessories don't always have the functionality of the OEM device.
4) Be certain you have special features such as VOX turned off on your radio.

Hope one of these helps.
Best regards.

Mar 27, 2013 | Motorola Talkabout T5420 (14 Channels)...

1 Answer

1 unit doesnt recognize the other - they worked for years, put fresh batteries in, powered up, and when clicking 1 unit the other doesnt hear it; both units on same station, have tried other stations and...

Sounds like you have check the settings. Which would be the first item to check: frequency, code and Qt filter (if any). You might try setting all of these back to a basic setting with only your frequency programmed. Turn all the others to off (or zero), including any other special features such as VOX or call tones. If your radios do not work in this basic simple mode, you may have a deeper problem.

Also, check your batteries. If you are using rechargeable batteries, they may need replaced. They have an 18 month life expectancy. It takes more energy to Transmit than to Receive, so when a battery is going bad, the first thing to leave is Transmit. You can try swapping the batteries to see if the problem changes. But if both are the same age, they both could need replaced.

Here is a link for your convenience to the user guide:

Best regards.

Sep 04, 2011 | Motorola Talkabout T5720 (7 Channels)...

1 Answer

Two motorola t8550's unable to communicate

1) You did not mention the Qt filter. You might check to see if you have the Qt filter set the same on both radios. This is an additional layer of privacy featured on this radio.

2) Verify you have good working batteries. A bad battery or uncharged battery can cause a no transmit situation.

3) If these do not work, reset your radio back to a basic operation by shutting of the code, Qt filter, call tone, weather alert, Vox/iVox, roger beep, etc. At this point your radio would be operating just on a simple frequency. See if you can communicate with all these special features turned off. If so, slowly add back in the features you desire.

4) If your radios still fails to work and is less than one year old, call the 800 number on the pamphlet, have your serial numbers and radios handy. Your radio if not physically or water damaged is possibly still under warranty.

Most of the time when a set of radios has your problem description, it is the Qt filter, or possible improper use of a special feature such as call tones or iVox. These would be the first things to check.

Best regards.

Here is a link to the user guide:

Mar 09, 2010 | Motorola Talkabout® T8500R Two Way Radio

1 Answer

Hi I have the T5622 talkabout with a PTT headset. I can transmit OK but I am not receiving anything other than a ''click'' when the other person transmits. I have tested the headset and I am able to recive...

Here a few thoughts which come to mind.
1. You do not mention whether the radios communicate with the headset no on the radio. I will at this point, assume they do.
2. Be certain to have the radio SHUT OFF when plugging in the audio device.
3. Check your VOX settings. It could be your radio is going into VOX mode.
4. Only use the PTT button on the headset. Do not press the PTT on the radio at any time while using the headset.
5. Check that you have CALL TONES shut off.
6. Lastly, if nothing else works, go back to a basic mode, and set both radios where there are no special features turned on. ie turn off CODE, Qt Filter, VOX, Call Tones, etc.
Here is a link to the manual:

Best regards.

Feb 05, 2010 | Motorola Talkabout T5720 (7 Channels)...

3 Answers

Okay on my 2 way radio i turn wox on and then turn the radio off plug the headphone in turn the radio back on and then the vox is turn off again

you miss to save your last program,after you turn to vox mode you must to save ,or the mode will back to before you change

Feb 27, 2009 | Motorola Talkabout SX700 2-Way Radio

1 Answer

T5420 unable to transmit or receive. Please help!

Here is a link to the T5000-T5500 user manual. ''

From what you have stated, I can discern the radios will power up. You might try setting your interference eliminators to zero (off) to see if you are able to transmit at all.

You do not mention if you are using AA batteries or rechargeables. Either way a fresh set of charged batteries would be best for a test. It is clear you were getting power. However, it does take more energy to transmit than to receive. If your batteries are low or bad, pressing the PTT could us all the energy the radio has, and yet not transmit to the other units.

You might also check you VOX settings if any and be certain they are turned off.

It is not likely 4 radios would fail all at the same time. So it is probably a programming problem. Hope the user manual helps you find the solution.

Aug 23, 2008 | Motorola Talkabout T5420 (14 Channels)...

1 Answer

Motorola T5622 VOX Not Activating with Autocom Sys I have an Autocom (Kit 300) motorbike coms system. I bought the accessory cord that interfaces to the Motorola T5622, for VOX I have followed the Motorola...

Hi Folks, two seperate checks to do - to check vox on autocom and transmit on motorola. With the T5622 unconnected to anything, does the push transmit button work - e.g. does it make the beep noise at the end of transmission?

Does your autocom work with any other sound sources - i.e. mp3 player so you can hear music. Does this mute when you speak ? (it should if vox is working). Note that in this setup vox is provided by autocom - NOT BY THE T5622. The instructions you mention are for the motorola vox kit.

Wire the two together and you should get the motorola beeping through your autocom at the end of transmit - that's what my kit 200 does with my T5622.

Mar 13, 2008 | Motorola Talkabout T6310 (14 Channels)...

1 Answer


If you are using vox (voice activated transmit) go into the menu and make sure you don't have the VOX setting too high. You should be able to put the headset on... hit the "push to talk" button on the radio and transmit you audio. Turn the other radio on and make sure the radio is "keying" (tx with no auio) then make sure there is audio. If you don't have audio but the radio is transmitting.. you might have the wrong type of plug on your headset for the audio..... there are 2 plugs... 1 for transmit audio....1 for recieve audio. It could be the wrong type of plug for the jack in the radio. Regardless.. the way the headset works is either you push the "push to talk button" onj the radio OR you use the VOX function... with the vox function you just have to talk into the mic to transmit. This is what your headset is designed for. You will have to go into the menu and set up the radio for VOX. If you still have problems follow my directions at the top of this page ( check mic jack and stuff) I think you just have to set the radio up for VOX operation and set the VOX setting. You should be able to push the push to talk button and talk through the mic on the headset. If you don't get any audio that way there is a problem and you should check the jack and plug on the headset.

Aug 25, 2007 | Motorola Talkabout T5720 (7 Channels)...

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