As a professional trucker I have had many CB radios over the years, Most people do not understand about ground, antenna wave length, RF gain, and many other things that contribute to the use of this type of radio. My suggestion would be to find a CB repair shop, can be found at most major truck stops, and tell them you need your antenna matched to the radio. You may even get a peak and tune done to it at the same time. Most problems with these radios come from the antenna and the ground. Remember this also, the longer you try to use your radio that is not properly set up, means that you may be burning the finals out within the radio. I would just take it to a CB shop. It shouldn't cost over $20 or $30 dollars to have this done and take no longer than 30 or 40 minutes.