Question about Uniden GMR-1558 / 2CK 2-Way Radio

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Headset problem with Uniden 1558

I have a problem with using the headset -it doen work .The VOX function is on but i can not fix the problem.Could you help me Thank you in advance

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  • 25 Answers

Determine if this is a VOX problem or a headset problem.

Turn off the VOX. Does the headset work for normal transmit and receive?

Remove the headsets. Do the radios work normally on speaker?

Plug one headset in And test with the (other) radio in speaker mode. Does it work? Now turn on VOX in this mode (yes it will work this way). Does vox work (put you mouth right on the mic)
If so swap headsets and try the other.

If one Hset works but not the other its the headset. If neither works its likely the radio ..but before you decide try the same headset experiment on the other radio. Find out which of the 4 devices the problem follows.

Happy New year

Posted on Jan 01, 2008

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2 Answers

When mic n headset is plugged into my motorola cp100 sound comes thru both radio speaker and headset. How do I fix this so that when the headset is plugged in. Sound only comes in thru the headset??


Sometimes on Motorola radios, the vox option get left on. Due to both vox and regular PTT option at the same time, may cause them to RX out of both speakers. So try turning off your vox option which should under menu on the keypad

Nov 09, 2015 | Motorola Radio Communications

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Active headset


Your headset is operating in VOX mode. This sometimes will happen if the headset is plugged into the radio when the radio is still turned on. Try unplugging the headset, turn on the radio, then talk using the PTT on the radio. Shut the radio back off. Then insert your headset plug, being certain it is seated (click) into place. Then turn the radio back on and see if it works without VOX. If you are still having problems, press the PTT on the radio one more time and see if it shuts it off.

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Your headset is operating in VOX mode. This sometimes will happen if the headset is plugged into the radio when the radio is still turned on. Try unplugging the headset, turn on the radio, then talk using the PTT on the radio. Shut the radio back off. Then insert your headset plug, being certain it is seated (click) into place. Then turn the radio back on and see if it works without VOX. If you are still having problems, press the PTT on the radio one more time and see if it shuts it off.

Mar 12, 2014 | Motorola HMN9021A Dual...

1 Answer

Uniden uh038sx 2


Your radio is either stuck in VOX mode, or has a bad PTT button. Sometimes when using an audio device a radio will stick in Tx if the device is plugged in while the radio is turned on. When using any remote mic, earpiece, headset, or audio device be certain the radio is turned off when plugging or unplugging the device.

If no audio device is being used, the next possibility is a sticky or bad PTT button. This can sometimes be just the external button sticking, or it can be the internal button has simply worn out from repeated use.

One final thought, if your radio has programmable VOX, check to see if your programming is correct. VOX features when turned on make the radio Tx when it hears any sound, a voice or ambient noise can cause the radio to transmit.

Best regards.

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We recently purchased the Motorola MS350 radios with headsets. We plugged the headsets in and turned the power on, but are unable to communicate back and forth in handsfree mode. We can switch to PTT and...


The three things which come to mind are:
1) Is the headset the VOX headset intended for the radio model? Sometimes the rings on the plug do not match the internal points of contact if it is not the intended headset. Not all headsets are VOX capable.
2) Is the headset plugged in all the way. (You mentioned plugging in and then turning on. This is good. You must always have the radio turned off when plugging or unplugging an audio device.)
3) Try pressing the PTT on the headset cord one time before switching the dip switch to VOX. (Assuming you have a headset with the small box in the line.)

Lastly, if you continue to have difficulties, contact Motorola at the 800# provided in the user guide. They should be able to assist you.

Best regards.

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We recently purchased the MS350 radios and are trying to use them handfree with the headsets. We plugged in the headsets, turned on the radios, but are unable to communicated back and forth using the VOX...


The three things which come to mind are:
1) Is the headset the VOX headset intended for the radio model? Sometimes the rings on the plug do not match the internal points of contact if it is not the intended headset. Not all headsets are VOX capable.
2) Is the headset plugged in all the way. (You mentioned plugging in and then turning on. This is good. You must always have the radio turned off when plugging or unplugging an audio device.)
3) Try pressing the PTT on the headset cord one time before switching the dip switch to VOX. (Assuming you have a headset with the small box in the line.)

Check your VOX/ iVOX settings. You will need VOX for using an audio device.

Lastly, if you continue to have difficulties, contact Motorola at the 800# provided in the user guide. They should be able to assist you.

Best regards.

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1 Answer

Can i have my UH064sx-2 Radio activate & send when i talk into it


AFAIK, this is only possible when you have the headset plugged in. The headset allows VOX operation (voice operated transmission). If there is nothing plugged in or the handset is plugged in, the VOX setting is automatically switched off.

You can adjust the sensitivity of the mic so that it will start transmission only when a certain sound level is exceeded. There is a tiny lag between when it detects the sound and when it starts transmitting.

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1 Answer

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Hello ppaseka,

The Kenwood TK3202 onky supports VOX use with three specific models of Kenwood headsets: the KHS-1, KHS-21, and KHS-22. You will want to ensure that you are using one of these three headsets and that the Push-to-Talk is set to the VOX position.

Additionally the VOX function must be enabled in the radio. This can only be done by the dealer programming the radios. If the Voice Operated Transmit function was enabled by dealer who sold the radios to you then you may still need to set the VOX sensitivity level to ensure that function is sentitive enough to register the user's voice. The steps to setting the VOX sensitivity level are located on pages 20-21 of the radio's users manual which is available for download here.

Best Regards
Ken
"Go Ahead. Use Us."

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Earbuds


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.

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