SWR issues

Right off the bat, did you use a proper dual antenna harness, or just two regular runs of 50 ohm coax and a T-connector? If the latter, you're presenting the radio with a 25 ohm load, which is a 2:1 SWR *at best*, assuming everything else is perfect. No amount of fiddlage with the antennas will fix the SWR with the bad match that the existing coax arrangement provides.
Hopefully whoever does the RFX installation has a spectrum analyzer and a calibrated signal generator, instead of just a cheapie wattmeter and a DC voltmeter to tune with, or the final product is likely to have a numb receiver and generate spurs all over the band.

But since the antenna light is on before the RFX installation, see if you can borrow a box-stock CB while the '29 is off to the shop and fix whatever is going on with your antenna system. F'r instance, take one of the antenna coaxes off the T-connector and plug just that one into an SWR bridge and see if you get a good match. If you do, then you've apparently got the wrong cabling arrangement for dual antennas. But you can take advantage of this time to tune the two antennas for best match individually, *then* buy a proper "co-phase" harness to use the antennas together.

Then, once the RFX/29 arrives, if you show a problem, you can be pretty well assured that something has gone awry with the Cobra that you sent off.

Hope that helps,
73

 

Handlebar is dead on as usual....

It may be better to run one antenna and go as long as possible,and new RG8x coax.
I have never had much luck with the short Firestick antenna as far as getting it tuned right.

 

i have never cared for a fiberglass antenna.

 

Me either......once you go steel whip you never go back...lol!

 

I'm assuming you're sending it to R&R Communications? I was there today to drop off a couple radios. Russ is a really nice guy. I walked in and there were about 6-7 guys just hanging out shooting the bull. It was like walking into a barbershop were everybody just hangs out and no one gets a haircut.

 

Is there room at R&R to get a truck and trailer in? I heard its tight for parking.

 

Radio Shack coax isn't as bad as it used to be. The old stuff was so bad that I know of a drive-in owner that used several hundred feet of RS RG-58 attached to a dummy load for their FM transmitting antenna. It worked nearly as well as the blue "leaky coax" they were supposed to use, and was a lot cheaper.

 

I always had high swr with my ranger in a t600 . I found a francises long whip helped alot . also cb shop in missouri should me a trick nobody ever does. He took his swr meter and had a good reading of 1 . My meter on the radio said almost 3 . So he took the radio in the shop opened it up and demagnitized the swr inside the radio. He basically hooked a ground wire off the swr when ever he make an adjustment in the radio. Once it gets magnitized it will always be off and hard to lower . You will spend your check trying to get it lower it wont work. So demagnitize the swr before you wast alot of money