Question about Motorola Talkabout T5420 (14 Channels) 2-Way Radio

1 Answer

Motorola T5420 Transmit Problem

Hi,

Had tried your solutions but the problem persisted.

Had new AA batteries in both talkies, set the interference eliminator code to 0 yet I'm still unable to transmit / receive any message.

Need help.

Thanks.

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  • Xephonx Aug 27, 2008

    The walkies are in good condition, same condition as last used, been sitting in my cupboard in the original packaging.

    The last time I used the walkies are in a dry and sunny day.

    Sound works normal, still gets the startup beep, moni static sound, PTT pressed & release beep.

    Everything works fine except it's unable to transmit.

    Will try out the rechargeable battery pack that came with it and see if it transmits.

    Thanks.


  • Xephonx Aug 29, 2008

    Ok, I managed to get the walkies to transmit and receive. But there is this one problem.

    I'm only able to transmit and receive between walkie A and walkie B only but not to walkie C and walkie D.

    Walkie C is only able to transmit to walkie D only and receive between these two. Why am I unable to transmit and receive between walkie A and walkie C?

    The problem I had post earlier on is this problem. Batteries aren't a problem as I switched AA and rechargeables here and there.

    Thanks.


  • eradiostore
    eradiostore May 11, 2010

    Other than being a programming issue, is it possible you had gotten the radios damp or wet during their last use? If so, you could have a corrosion issue.



    If your Frequency and Code are set to match one another; you have fresh batteries; and you have checked your VOX setting, at this point you have checked everything which can be done from a programming standpoint.



    Do you get any sound of the of the speakers at all?



    It still is unlikely for 4 radios to fail at the same time. It is a mystery. I'll be pondering other possible solutions.

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  • Motorola Master
  • 1,640 Answers

Here are some troubleshooting thoughts:

1. Is your battery indicator showing at least 2-3 bars? (Battery Note: Your rechargeable batteries may fail due to setting without use for a long period of time. They need replaced every 12-14 months usually. A good tip is to charge them once a month to keep the chemical in the battery active.)

2. Check to see your Qt noise filter is shut off. Refer to page 22 of the owners manual. It is possible you have some radios set to Y and others to N. To assure good communications you should set all of them to N.

3. With your radios set to interference code zero, place your radios one at a time in scan mode, while you transmit/talk on one individual radio. See if any of the radios receive. Do this with each radio individually to see if you are transmitting at all. NOTE: This test will determine if you have any ability to transmit. If you do not receive any sound on the 3 radios setting in scan mode, the individual radio you are testing will not transmit.

Posted on Aug 27, 2008

  • eradiostore
    eradiostore Aug 29, 2008

    If we go from the standpoint that the radios are in working order and free from defect, the interference eliminator code or the Qt filter would be the most obvious issues to double check.



    If you cannot see a difference on these two issues, you might have a second set of eyes look at them.



    I am glad to hear you went from 4 radios not working together to only two with questions. I do suggest after you get this programming problem resolved, you might want to turn on the programming lock. =)

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