Broadcast transmitter site switch control
Tunwall Radio LLC makes switch and transmitter control systems for AM, FM and TV. The TRC Series, launched in 2004 with a one switch controller, now includes six models for single, dual and triple switch configurations. Tunwall Radio also produces custom switch controllers for FM and TV, and designs and builds AM directional phasor and transmitter control systems.
Tunwall Radio is connected to the earliest days of radio. Steve Tunwall’s grandfather, Carl Tunwall, Sr., owned and operated radio station KFJY in Fort Dodge, Iowa. Broadcasting at 1220AM, it was one of the first stations in the state, receiving its license from the FCC in 1924. Tunwall Radio Corp. also owned and operated a radio store and repair shop in Fort Dodge. Tunwall Radio LLC, a Florida limited liability corporation, has no business connection to the original Iowa company. We do use a variation of the original company logo as our own today. We also proudly display photos of the 1920s era Tunwall Radio service car, a Ford Model T, in our company literature and here on tunwallradio.com.