Just got cobra 29 with Bluetooth every thing is hooked up good antenna grounded etc but swr is way too high the antenna I got was a vanco 4ft fiberglass whip 5/16" top loaded need to tune the antenna manual says adjust height up or down but I don't see any adjustments for height on the antenna do I just start cutting away the top of the antenna in small increments until it's tuned since there's no adjustment nut

 

Thanks Toad I got it done it was almost there Just needed a little more snipping did it then it metered way too high again uncoiled a little bit to stick out the top and got it dialed in then carefully put the rubber cap on. I wonder if I could cut it down more and start over since one good whack with a tree branch could knock it out of tune
Or should I buy a new antenna And start over

 

Dirk, I went through the cut...test...cut...test...cut...test phase too, and although it was working I went ahead and got an antenna with a screw on the top. Just made the whole process much easier.

 

Or more likely break it. You might get a shorter antenna for trails where trees could be a problem. And ones with a screw adjustment are easier to set up. Have it pre-set, then swap out the antenna before hitting the trail. I've seen them as short as two foot.

 

Im going to have to check out the cobra. new to radio communications and all