tm721a.10 Tuning the 721 UHF for 460 megs + : Edward Thomas, N2IHN 1. FIND L4 & L3 on bottom of set, turn 4 screws CCW @ 3 turns. 2. PEAK TC1, TC2,TC3 for signal strength. 3. May need to tune TC102 for transmit output and TC101 for recv.