I have 2 pairs of Motorola T5420 walkie talkies but all of them are unable to transmit or receive any message. When I first got the units a year ago, they are working, but after a year without any usage, the problem came.
Even though the channels and codes are set to the same frequency, still couldn't work. The paging function (to another unit) ain't working as well.
Any reset buttons?
Need some help here. Would greatly appreciate all the help given.
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Re: T5420 unable to transmit or receive. Please help!
Here is a link to the T5000-T5500 user manual. 'http://www.motorola.com/mdirect/manuals/T50-T55_UserGuide.pdf'
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.
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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.
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.
Don't know your capabilities but if it were me I would open the phone and check the contacts for transmit button. Sometimes contacts get corroded and need cleaning or it just may be no connection at all and a adjustment of the contacts will resolve the issue.
This unit does not have a reset button. While troubleshooting you might check the batteries. Be certain they are in correctly and the contacts are free of corrosion. You can use a pencil eraser to clean the contacts.
Walk through all the programming instructions in the manual, double checking both the frequency and interference eliminator codes. A quick setting back to zero on the code would alleviate any problem with that section of the radio.
As far as your "paging" this operates on the same frequency and code as the rest of the radio. If the radios are not working correctly in this relm, the paging will not work either.
Hi Zachary I predict that you have trouble with only one unit. Try to find some one with either the same units ( on same Frequency of course) or a receiver that also covers same Frequency and transmit on one GMR then the other to esablish which unit is faulty! The faulty unit should then become apparent, the buzzing could be caused by transmisson of the faulty unit, check all Antenna connections, even change antennas over on testing as prescribed above, good luck John.
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.
In situations where one radio cannot talk to another radio the problem is often caused by improper setting of the radio's Continuous Tone Coded Squelch System (CTCSS), which Motorola calls "Privacy Codes." (Other manufacturers might use different names, such as Kenwood calling this feature "Quiet Tones.")
When CTCSS is activated your radio's receiver will be muted unless the radio receives a signal from another radio using the required Privacy Code. This prevents you from having to listen to other user's conversations on what can be busy channels with a lot of activity.
In one of your radios has CTCSS enabled and the other does not, or if the other radio is set to the wrong CTCSS tone, the situation you describe will occur: one radio will be able to talk to the other, but that radio will not be able to talk back.
Make sure both of your radios are set to the same CTCSS privacy code or that CTCSS is turned off on both radios.