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TRC Series

Broadcast transmitter site switch control

Custom Designs

Control systems for FM and TV

AM Directional

Transmitter and Phasor 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.