Question about Uniden GMR638-2CK (22 Channels) 2-Way Radio

1 Answer

My radio turns off automatically as soon as I hit the talk button.

It still receives, scans, changes volumes and even enters the menu. As soon as I hit Call or Talk, it shuts off. If I hold the power button then hit either of the two, it works, but then it shuts off because I'm holding the power button.

I know it can still send because I found a trick, if I shut it off then turn it back on and still hold the power button, I'm able to talk and call, it's just a nuisance to have to do so.

Please help, is there anyway to reset the device?

Posted by on

  • 2 more comments 
  • jimmycudo Aug 26, 2008

    I just swapped the batteries and cleaned the contact prongs (didn't bend them, they had plenty of contact space) and it seems as though battery or power loss problems are the issue at hand.

    How long do you think it would take to reset if I left it without a battery?

    No problem by the way, thanks a lot for the fast response. :)

    Would you like me to post a video of the issue?


  • jimmycudo Aug 27, 2008



    Here's a video of the issue. Sorry about the voice, I'm still not fond of the interwebz. :D


  • jimmycudo Aug 27, 2008

    I appreciate that, but can you help me get past it? :D

  • jimmycudo Sep 05, 2008

    Will do, I'll leave them to charge right away then. Thanks a lot, I'll let you know how it goes Benimur. :)

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 6,966 Answers

Hi,

Appreciate the direct "Ask Me".

Initially, I would assume that you have a pair and that the problem is with just one.

Based on this, I would suggest switching the NimH batteries. This is to eliminate the possibility that is is a battery/charging issue. Additionally, pls try to verify that the battery contacts both on the radio and the batteries themselves are clean. You may need to scrape them off to assure positive contact. Further on the radio's battery terminals, you may need to slightly bend them (or stretch if spring type) to provide more pressure in the contacts.

Incidentally, removing the battery for an extended period of time is enough to perform a reset.

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

Good luck and kind regards. Thank you for using FixYa.

Posted on Aug 26, 2008

  • 1 more comment 
  • Louie  Role
    Louie Role Aug 26, 2008

    Posting a video would help others of similar concern and would be appreciated.

    The reset by battery removal, an hour would way more than enough.


  • Louie  Role
    Louie Role Aug 27, 2008

    Thanks for sharing this video. I am sure many would benefit and relate to the problem at hand and have an idea on how to go about it.

    Cheers.


  • Louie  Role
    Louie Role Aug 28, 2008

    What has been tried so far:


    • switching batteries;

    • cleaning/scraping battery contacts/terminals;

    • reset/battery removal for extended period.
    Others that you can try:


    • verify that battery level indicator shows a full charge;

    • disable automatic power save feature;

    • use Alkaline batteries;

    • bend the battery terminals as initially suggested;

    • open the unit and check for any corrosion on the battery wires or on the PCB.


×

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I would like to change the frequency on my XU2100 to frequency #6 so that it receives tran smissions from our other 2-way in our community watch. If we leave them on scan they do work, but we would like to...


Hold the PTT button and the MON button in while turning on the radio. Continue to hold them until the programming initialization noises stop. Press the menu button one time to get to the Freq setting, change it to 6. Then press the menu button to lock in this setting. The next menu screen is the Code, set it to match your other units. Then press the menu button again to lock it in. Press the menu button to walk through another 2 or 3 screens and then you will hear a different chirp. Your radio is now programmed, simply shut it off and turn it back on and your radios should work.

Best regards.

Jul 22, 2011 | Motorola XU2100 (1 Channel) 2-Way Radio

1 Answer

Walkie talkies model gmr325-2 ic;513C-UT914 HOW DO I GET THESE TO TRANSMIT, MY HUSBAND HAS CANCER AND WE NEED THEM IN OUR BEDROOMS AND WHEN I AM OUTSIDE, TK U, TK U


In order to get the most out of your new radio, read this reference guide completely before attempting to operate the radio.

Turning the Radio On and Adjusting the Volume

1) Press and hold the key to turn the radio ON.

2) To change the volume level press the volume/monitor up or down key to increase or decrease the volume level.

3) Press and hold the key to turn the radio OFF.

Adjusting the Sound (Key Beeps)

Your radio emits a beep each time one of the keys (except for the PTT button and call key) is pressed.
The sound of the Key Beep will increase or decrease depending on the volume level setting.

To turn OFF this beep:

Press and hold the call key while turning ON the radio.

To turn ON this beep:

Turn the radio OFF and ON again.

Choosing a Channel

Your GMR325-2 radio has 22 channels you can use to talk to others. In order to speak to someone,
each of you must be set to the same channel.

To choose a channel:

Press the channel/scan up or down key to increase or decrease the channel number displayed.

Channel Scan Feature

Your GMR325-2 radio has a channel Scan feature that allows you to easily Scan all 22 channels. When an active channel is detected, the unit will pause on that channel until the channel is clear. Then after a 2 second delay, the unit will continue scanning.

Pressing PTT button while the Scan is paused on a channel will allow you to transmit on that channel.

To turn ON channel scanning:

Press and hold either the channel/scan up or down key. The channel number on the display
will rapidly cycle through the channels.

To turn OFF channel scanning:

Press either the channel/scan up or down key.

Talking on Your Radio

To talk to others using the radio:
1) Press and hold the PTT button and speak in a clear, normal voice about 2-3 inches away from the microphone.

While you are transmitting the tx icon is displayed. To avoid cutting off the first part of your transmission, pause slightly after pressing the PTT button before you start talking.

2) When you are finished speaking, release the PTT button.You can now receive incoming calls. While receiving, the rx icon is displayed.

Transmitting a Call Alert Tone

Your GMR325-2 radio is equipped with a call tone that will be transmitted when the call key is pressed.

To transmit the call alert tone, press the call key.

The tone will automatically be transmitted for a fixed length of time.

Auto Squelch Feature

The GMR325-2 is equipped with an automatic squelch system which shuts off weak transmissions
and unwanted noise due to terrain conditions or if you have reached your range limit.

Monitor Mode Feature

Your GMR325-2 radio allows you to listen for weak signals on the current channel at the press of a key.

To turn ON monitor mode:

Press and hold the volume/monitor up or down key. The rx icon will blink.

To turn OFF monitor mode:

Press the volume/monitor up or down key. The rx icon will stop blinking.

Automatic Power Save Feature

Your GMR325-2 has a unique circuit designed to dramatically extend the life of the batteries. If there is neither transmission nor an incoming call within 2 seconds, your radio switches to the Power Save mode. The radio is still able to receive transmissions in this mode.

KEYLOCK ON/OFF

Press and hold the call 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 again.

Note: While in keylock on mode, it will still receive transmissions.

ROGER BEEP

Roger Beep is a BEEP that is sent to notify the end of transmission.
Roger Beep can be heard through the speaker when Key Beep is on.
Roger Beep is transmitted even if key beep is turned off. However Roger Beep will not be heard from the speaker.

To turn OFF Roger Beep: Press and hold the channel/scan up Key while turning on the radio.

Jun 21, 2011 | Motorola Walkie Talkies 2-Way Radio

1 Answer

How to change channel


Spirit GT: Programming a Frequency to a
Selected Channel:
1. Press and hold down the Push-To-Talk
button while turning the radio on, wait for
approximately 5 seconds then release the
Push-To-Talk button.
2. Use Scroll button to select one of the 8
frequencies.
3. On a Spirit GT+, press the Monitor button.
4. The current channel will flash, press scroll
button to change channel.
5. After the second channel is selected, press Monitor button again, current
frequency for second channel will flash. Figure 16.
6. Use Scroll button to select new frequency.
Exit Programming Mode - 3 Ways
1. Press Push-To-Talk to exit completely.
2. Allow the Menu time to expire (10 seconds).
3. Press Menu button to go to code programming.

Here is a link to the user manual: http://www.motorola.com/mdirect/manuals/Spirit_GT_User_Manual_E.pdf

Jul 17, 2009 | Motorola Spirit GT Pro (2 Channels) 2-Way...

1 Answer

How do i change the channel?


Programming a Frequency to a
Selected Channel:
1. Press and hold down the Push-To-Talk
button while turning the radio on, wait for
approximately 5 seconds then release the
Push-To-Talk button.
2. Use Scroll button to select one of the 8
frequencies. Figure 16.
3. On a Spirit GT+, press the Monitor button.
4. The current channel will flash, press scroll
button to change channel.
5. After the second channel is selected, press Monitor button again, current
frequency for second channel will flash. Figure 16.
6. Use Scroll button to select new frequency.
Exit Programming Mode - 3 Ways
1. Press Push-To-Talk to exit completely.
2. Allow the Menu time to expire (10 seconds).
3. Press Menu button to go to code programming.

Here is a link to the user manual: http://www.motorola.com/mdirect/manuals/Spirit_GT_User_Manual_E.pdf

Jun 25, 2009 | Motorola Spirit GT Pro (2 Channels) 2-Way...

2 Answers

Talk about frequency change


To change channel & code press talk and monitor while turning radio on. Radio will speak current channel. Release both talk and monitor. Press talk to change to next channel or press monitor to keep current channel. Press monitor when desired channel is selected, radio will speak current code. Press talk to change to next code or press monitor to keep current code. Press talk to change code as desired then press monitor when done. Will speak channel and code selected. Set all units in same manner to communicate.

Oct 15, 2008 | Motorola Talkabout T5800 (22 Channels)...

1 Answer

My radio turns off automatically as soon as I hit the talk button.


i hope it has only the offer to talk or radio on.
even my mobile ve same thing.it ll either in radio mode or in talk mode.
both never be activated together

Aug 26, 2008 | Uniden GMR638-2CK (22 Channels) 2-Way...

3 Answers

Instructions on how to change channels on TECHNIKA MODEL TA-13


Basic Instructions for Technika Model TA-13

On this model there are 7 buttons:
Left to Right these are:

PTT, Push to talk on lh side as screen faces you.
Power/Menu
Scan
Call
Down
Up
Torch Light (on rh side)

Assuming you have used the power button to turn on the radio, the default channel after installing the batteries is 1 or else the last channel to be used.

Press the power/menu button once-briefly, (the current channel will flash for about 10 seconds.) Then use the Up and Down arrows to change channel. Wait for the remaining few seconds and the radio will return to normal operation.

Press the menu button twice, the letter H or L will appear and can be altered by the Up and Down keys to change the power level of the radio. I think this is transmit power which may help you avoid infuriating local taxi companies. Switch back to High power when you're about to go out for the night and need a ride.

Press the menu button three times. This will turn off Squelch control and make a terrible din. Not terribly useful unless you want to pick up a really weak signal (or find out where the taxi driver has taken your neighbour.)

An easy way of finding a channel is to press and hold the Scan button and then the device will rotate through the available channels looking for a signal. When someone transmits, the scan will pause and you can capture it by pressing the PTT button for a second or two. I have found this helpful in pairing my radios with other sets, or picking out channels that work with friend's radios.

Finally, Volume control is really simple, just up and down when not in any other mode.

I had the instructions, which I think included a mention of all available channels I'll scan and post them if ever I find them. hope this part helps though.

Jan 29, 2008 | Two-Way Radios

1 Answer

I have a problem


Hi,

Normally in a Motorola T5700, to set a specific channel to monitor (and reply to) called your working channel, you press the Menu (center) button and the current channel shown in the display will flash. Press either the + or - buttons to change to your desired channel number which should be identical to both radios. Press the PTT button to save.

Likewise, both radios must have identical Interference Eliminator Code. To set code, press Menu till the code display blinks. Press + or - to select code. Press the PTT to save. To disable the code, select 0.

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

Good luck and kind regards.

Jan 22, 2008 | Motorola Talkabout T5700 AA (22 Channels)...

4 Answers

Muting the sound


Hi,

The sound produced by a Motorola radio when the mike is keyed refers to the "Transmitting Call Tone" which is another feature other than the "Interference Eliminator" or the "Roger Beep" feature.

On most Motorola GMRS/FRS TalkAbout radios, setting the "Call Tone" to 0 disables the feature. This is done with the radio ON by pressing on the "Menu" button 3 times which will result in the display showing the current Call Tone setting (flashing) and the letters CA; pressing on the <- or +> buttons will change selection (you will also hear the different Tones), select 0 (it may be up to 5 or 10 depending on the version). Press on the "Menu" or "PTT" button to set, save and exit.

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

Good luck and kind regards.

Nov 25, 2007 | Motorola TalkAbout T5530 2-Way Radio

Not finding what you are looking for?
Uniden GMR638-2CK (22 Channels) 2-Way Radio Logo

Related Topics:

257 people viewed this question

Ask a Question

Usually answered in minutes!

Top Uniden Two-Way Radios Experts

eradiostore
eradiostore

Level 3 Expert

1640 Answers

Iron
Iron

Level 3 Expert

3018 Answers

Michael Thomas
Michael Thomas

Level 3 Expert

3051 Answers

Are you an Uniden Two-Way Radio Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...