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

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T5420 unable to transmit or receive. Please help!

Hi,

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.

Thanks.

Posted by Xephonx on

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1 Answer

eradiostore

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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.

Posted on Aug 24, 2008

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Hello rixonsusu,

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.
Best Regards,

Agent Ken
Go Ahead. Use Us.

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