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NHRC Repeater Controllers is your provider of low-cost, high-value repeater controllers.

Manufacture microprocessor based repeater controllers

Microcontrollers for many ham radio applications including repeater controllers, beacon transmitters, keyers, antenna switches, battery monitors, etc.

Manufacturer of Repeater Controllers, Repeater Tone Panels and Telephone Interconnect.

Manufacturer of Amateur and Commercial Repeater Controllers, Autopatches, and Accessories.

Sierra Radio Systems site controllers are used to monitor and control remote radio and equipment sites, often implemented to monitor repeater systems, broadcast equipment, solar power infrastructure, tracking rf power, temperature, voltage, current and switch closure