Most of Troop F (Iredell, Alexander, Wilkes, Ashe, Alleghany) is on VHF Lo 42.600. The other counties (Catawba, Lincoln, Burke, Watauga, etc.) are on 42.640 Lo Band. VIPER talkgroups are also in use as many of the troopers are assigned 800 mhz handhelds where tower sites are operational.