I had a crude antenna set up (Just a piece of CAT6 cable) used just to listen and set up my CB. It worked fairly well. When my Firestik II antenna finally came in I hooked it up with an RG-58 cable and one of these adapters from radioshack.
When I did that I could briefly hear something coming from a local guy, and the it cut out when I screwed the adapter on fully. I remedied it by taping off the threads on the adapter/antenna but I KNOW I shouldn't have to do this. Anyone care to explain what I'm doing wrong with my setup? It's labeled PL-259 to UHF Mini.