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.

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.

Check your interference eliminator CODE, and your Qt filter (if any). These must be set identically.

Best regards.

We have been unable to locate a manual in Spanish for the T5720. However, you may be able to get one from Giant International customer service 1-800-638-5119 or by using their "contact us" form at http://www.giantintl.com/ContactUs.htm

Best regards.

Check the settings of the Frequency, Code and Qt filter on your non-functioning radio vs. the working ones. They all should match identically. Here is a link to the user guide: http://www.giantintl.com/ContentManage/manuals/Moto/T55xx.pdf

1) Double check your interference code eliminator and the Qt filter. Make certain they are all set identical.

2) If you are still having trouble, shut off the Qt filter.

3) Then if you still have trouble shut off the code. (Off is sometimes "zero" or "n" for no.)

4) If the above steps do not help you have either a defective radio, or a bad battery. Switch the batteries out of the working units to the non-working and see if the problem switches to the other units. If so, replace the battery packs. (Note: it takes more battery power to transmit, so the problem would first show up in the transmit area.)

Best regards.

My experience has been that you are probably on the wrong subchannel on the one that cannot receive.

Moisture and oxidation on the circuit board will create noise during transmission. You may remove the cover and wipe around microphone and the circuit.Ensure its dry. Cover it back and test.

Go on line. Search for the operators manual. It should give you the information you need.

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."

Should do. The available channels are defined by the regulator rather than by the manufacturer. Only thing to watch out for is similar looking devices designed to be sold into different markets (for instance, radios made to the European PMR446 standard work at a slightly lower frequency than those intended for sale in the US). A.