Question about Uniden GMR1038/2CK 2-Way Radio

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Only one walkie talkie receives sound & the channels and all other settings are set the same on both units.

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Unfortunately the amp & sound element may have broken

Posted on Jun 25, 2009

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I have a set of Motorola T5720 walkie Talkies. I cannot determine if one of them is not receiving or the other is not transmitting.


One radio works properly, the other can receive. I assume there are more than two by the question. Check and then rotate you batteries, mark on the working unit battery that it is GOOD. Transmit takes a great deal more power than receiving. Batteries, even un-used only last 18-24 months typically. If no joy, then check your programming but I think that is unlikely. It really sounds like a power/battery issue.

Aug 28, 2016 | Motorola Talkabout T5720 (7 Channels)...

1 Answer

Both walkie talkies are on the same channel, but will not transmit voice messages


Check your Code setting. Both the frequency and the code must be identical for the units to communicate. Shut off any special features and keep the radios at a simple setting until you get communications back.

Apr 05, 2014 | Motorola Walkie Talkie 2-Way Radio

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Uniden walkie talkie says L every time I push a button


You've set the keylock feature on your walkie talkie. From the Uniden manual...

KEYLOCK

ON/OFF Press and hold the call/lock key until the "L" appears. After 1 second, the LCD will return to the channel display. To exit Keylock on mode, press and hold call/lock again. Note: While in keylock on mode, it will still receive transmissions.

Feb 10, 2014 | Uniden Radio Communications

1 Answer

I have two identical kids walkie talkies with one speaker that doubles as Mic one works fine but the other one receives only it doesn't send anything I have tested with a third walkie talkie to confirm it...


If your radios have the feature called private line (aka PL, interference code, or code). It is possible the one radio which appears to receive only may have the code set to off (or zero). Check your user guide and see if you have this feature, then check to see both radios are set to the identical number.

If code is not the issue, you might want to try replacing the microphone from your spare unit,

Best regards.

Jan 21, 2014 | Radio Communications

1 Answer

Two sets of Motorola Walki Talki radios will not communicate.


In addition to the channel and privacy codes, some Motorola two-way radios have a feature called Eavesdrop Reducer where you have 3 scramble settings available; perhaps you have this set on one of sets of radios but not the other. It should be something like that because otherwise there is no reason that by setting the radios to the same channel and privacy code they wouldn't be able to send/receive to each other.

Nov 24, 2013 | Motorola Walkie Talkie 2-Way Radio

2 Answers

Walkie talkies were working yesterday (gift from Christmas) and today the red power light is on indicating both working, but we can only get sound out of one of them.....any suggestions? brand new...


Hello,
These walkie talkies are pretty simple to use. Turn on and turn the volume up and talk. So if you turn it on it is possible for there to be enough juice in the batteries to make the LED function but not enough to modulate (or talk) to the other walkie talkie. Have you tried to replacing the batteries with new ones yet? Sometimes recharge ables go bad and they are no good when you install them into your item. So make sure the batteries you installed are "new." And replace in both units. Should this not work, given the nature of the item and the age of those who will more than likely be using them, they break and soldier joints come loose. The back has a screw that is a specialty tool to remove. Outside of removing that and taking a look there is not much that can be done. Make sure to put at least 5 feet between the two radios to allow for good reception.
Regards, Tony

Apr 17, 2011 | Digital Blue LEGO Walkie Talkies

1 Answer

Assigning the frequency to channel on walkie talkie


plse contact a service team,
www.laradio.com.za

Mar 30, 2009 | Radio Communications

1 Answer

T5900 Walkie Talkie Issue


Hello Bo Duke,

If one radio won't walk to the other my guess if that you have the Privacy Code function set up incorrectly.

The privacy code function mutes the radio unless it receives a signal from another radio transmitting the same privacy code. If Privacy Codes are turned on for Radio A but not turned on for Radio B then you will be able to transmit from Radio A to Radio B but not from Radio B to Radio A. If Privacy Codes are turned on for both radios but each unit is set to a different code then neither radio will be able to talk to the other.

Make sure that the radios are both set to the same privacy code or that the privacy code function is turned off on both radios. You can find more information on how this function is set in the radio's Owner's Manual.

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

Jul 02, 2008 | Motorola Walkie Talkie 2-Way Radio

2 Answers

Walky talky


A walkie talky as we called them, back when we were younger - and hell we probably still do in some respects, hence the fact my friend still refers to her cordless phone as a "walkie talky" and the principals haven't changed that much.

The common old Walkie Talky or CB radio use what we call a half duplex, that means only one person can talk at a time. We are talking and listening on the same channel.

Cell phones are full duplex, meaning two way conversation, and this is simply listening on one channel whilst talking on another, so the basic principal is basically the same, just a little more sophisticated.

Walkie-talkie typically has one channel
CB radio has 40 channels.
Cell phone
can communicate on 1,664 channels or more!

I have included a link to a circuit diagram.

http://www.freeinfosociety.com/electronics/schemview.php?id=1870


There is also two links below, building the transmitter & receiver.
Transmitter: http://www.zen22142.zen.co.uk/Circuits/rf/2bjttx.htm
Receiver: http://www.electronics-tutorials.com/receivers/regen-radio-receiver.htm

Trust this helps, and please take the time to rate the answer given, thank you.

Feb 04, 2008 | Motorola Walkie Talkie 2-Way Radio

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