antenna warning!?

Sirius 2300 mhz signal using cb wips i would like to see how that works

 

There's a dedicated antenna somewhere on the truck. A lot have em.

 

Goin down the road I listen lol Sometimes its entertaining lol. Truck stop, I turn it down so I dont have to listen.

I have one antenna on each side of the truck. Not sure which one serves which. I know the passenger side one got taken out during a storm in Wyoming earlier this year. My CB would receive, but not transmit. Sirius was fine.

 

That's true.....unless people start getting mad! On the Cascadia.....our trucks are set up; left side CB, right side AM/FM etc.......but even though the left one is CB, for some reason it still goes thru 4 different junctions boxes before getting to the radio! Losing db at every junction!!! The older trucks 08 and 09 had 6 or 8 junctions, I forget exactly. No wonder they don't talk very far, even if you can get a good SWR reading out of some of them!!!

 

im having the same problem with mine, its an lcd version also. im about to go crazy and i need some help figuring this out. did sombody say go to cobra and they will send you pictures on how to fix this problem? i need definate ansers ASAP. Long haul in a few weeks and i need this thing working perfect.

 

That is the right way, but to calibrate it properly you should use a load designed to present a specific SWR at which you wish the light to come on (3 or 2.5) and then adjust it so it just starts to come on with that load.

Setting the control/lamp so it just comes on with no antenna is not best because the SWR might be much higher than the point at which the radio is in danger.

For example, with no antenna and the basic instructions in the quoted post, it will be much higher than 3:1 before the light comes on. You could end up transmitting all day with a 4:1 SWR on the load and not know it until the radio has lost so much output power.

You have an external meter to refer to, and you could temporarily mis-tune the antenna so the SWR is 3:1, then set that control pot. Use the very shortest jumper possible for accuracy.

3FT ones are sold but I like 'em to be 1FT when that can be found or made. Maybe find a male to male PL259 'barrel' and use it as the super-short jumper if you can fit it up for the test and adjustment. Be picky! Its your expensive radio.

 

Here is TSB from Cobra on this issue.

https://downloads.cobra.com/CB/TSB/TSB10057.pdf

What a pain in the arse

 

I think I am having the same problem. Did the light coming on effect performance of the radio

 

This just started happening to me today. It does hamper