Question about Cobra LI3900-2DXVP (14 Channels) 2-Way Radio
Radio seems to be stuck on RX mode. Not Sure what RX mean, but that is what displayed on the radio. Receives transmission, but can't send. Please help.... Thanks
Rx is an abbreviation for receive. (Tx is transmit) There are a variety of reasons a radio will be "stuck" in Rx:
1) Another radio in the group is stuck in transmit and you cannot reply if your radio is receiving the other radios transmission.
2) Your radio is programmed for Rx only.
3) Your radio has a Tx problem such as a bad mic, or something covering the mic opening.
4) Your battery is low or bad. It takes more energy to Tx than to Rx.
Posted on Feb 11, 2014
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Posted on Jan 02, 2017
Almost always, the problem here is that the micro switch for the Push-to-Talk (PTT) button has failed. Your radio should have a warranty, but even if the warranty has run out, it isn't horribly spendy to fix. I'd get in touch with Cobra Electronics, I have heard they're extremely helpful. Try this link and good luck!
Posted on Jul 06, 2011
Sounds like the radio was subjected to electrostatic discharge. If you have your manual, and it describes a way to do a "master reset" on the radio, follow the instructions. This usually involves pushing down on one key while turning the radio on. Otherwise you have to find a licensed dealer for factory service, as there is no way to repair the radio yourself. The use of surface mount technology still confuses many Techs unless they have been to a company's two or three week seminars.
Posted on Jul 24, 2009
depending on what radio you have, they are programmed in different ways, rx means recieve signal
and tx means transmit signal, if you have a mode button, you will have to scroll through it until you
get to the menu that allows you to change the radio transmission. it looks like that radio is only
programmed to receive signals and not transmit. good luck!
Posted on Mar 10, 2011
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