Very high current capacity and high voltage isolation of the FRD30000 Series is achieved through the use of high vacuum reed switch contacts, ensuring a high level of performance and reliability. The two standard models will carry currents of 12 and 20 Amps respectively at 30MHz and feature silver plated, fully screened coil assemblies for ultra low RF losses.

Typical applications include over the horizon (OTH) HF radar systems and 1kW base station transmitters.