Red ant light

Well to start with the swr meters on judt about all cb radios are just for reference and do NOT reflect the actual swr reading in your antenna system.If the red antenna warning light is coming on then I would bet you do have a high swr reading. Also the factory coax in big rigs of any make are CRAP!!. I would suggest that you install a new length of coax and it needs to be exactly 18 feet long as this is any antenna manufacturers recommended length. I dont know what year modle KW you drive but I do know from experience the 2007 models do not have a good ground system in them, at least the ones I have worked on. You may also need to ground your antenna brackets to the chassis with a peice of wire, and be sure where you ground it to all the paint must be removed and be bare metal at the point where you run the ground wire to as this will give a positive contact point with the ground. You can install the coax and the gruond yourself more than likely because its not to complicated but you do need to let a cb shop check your swr and set it if needed because he will have a much better swr meter than what is in the radio. The cost for the swr check and set should run somewhere around $ 15- $20.
If your charged more than that you are getteing ripped off by the cb shop. If you have any futher question you can email me at outlaws_cb_shop@yahoo.com and I will be glad to answer any questions you might have.

The red light always comes on while mic is keyed. It is designed to do that. It will blink on and off while mic is keyed if there is a SWR problem. This is explaned in operaters manual.

You probably do not have a problem at all if the radio has been"tuned up" by clipping the limiter diode. It isn't an uncommon thing to happen if the light just flashes while your modulating, that is probably whats happening.

Double T