I just bought a new uniden 996 xt, It was shipped to me without a antenna which is being sent out to me now, I tried using a old style antenna from my uniden 340. I cant pick up anything on my new scanner. I used software to program in all my trunking frequencies. So im thinking my programming is rite, and hoping its just my antenna issue. Would appreciate any info on the matter. IM trying to pick up trunked frequencies from about 20 miles away.