Cobra 29LTD rx/tx light red

You do not want the ant light to come on. That is a warning light meaning your
antenna swr reading is higher than is safe to operate.

 

If it is the rx/tx light going from green to red when you key up it simply means you are transmitting. As long as the antenna light is dark the radio is seeing a swr in the safe range. It does not mean it is correct just that's what the radio sees according to it's internal adjustments.

 

Well 99% of the time, yes. Your Midland mic SHOULD work with your Cobra radio, trial and error will tell. Just be aware that if they don't work together it may be a simple plug wiring discrepancy, not necessarily a bad mic or radio.

According to the Wolcott Radio website, https://www.walcottradio.com/microphone_wiring.php
your four pin Cobra and four pin Uniden are the same wiring scheme (top left corner of diagram) so it SHOULD work.

After all, it is on the INTERNET so it MUST be true, right??

 

W


was your radio peaked and tuned? If so the Antenna Warning pot needs,to be adjusted. Also some Cobra 29s are adjusted to touchy and borderline. To fx this,,remove the 4 screws that hold the bottom cover on. Remove your antenna lead. At the back right corner area inside the radio is an adjustable potentiometer, commonly called a pot. There is a number on the circuit board by the pot. The pot number is V6. You will need a small flat top screw diver that fits in the slot of the pot. Lacking a screwdriver you can flatten a piece of coat hanfer and file itvto resemble a screwdriver or steal on of your wifes screwdrivers from her sewing machine. lol. Now key your mike. Your warning light will come on. Insert screwdriver in pot, and turn it clockwise while holding mic key gown. Turn it very slow, until liht goes,out. Release mic key and then key mic again and yurn pot vounter ####wise just unil lihjt comes back on. Then release moc key and agsn yurn very slowly clockwise until light goes,out. Thats it. Youhave just adjusted your antenna warning sydtem. Reinstall 4 cover screws, hook up your antenna coax . Any time thev29 series gets tuned evenslightly you eed to readjust thevantenna warning pot. Make sure uour SWR is 2.0 or below. Oreferably between 1.0 and 1.5 is the majic atea. I wuld buyba test SW meter at a CB store or truckstop and a 3 foot coax jumper and use it to adjust your SWR and no the radios meter.

 

^^^^^sorry about fat finger spelling.