Built by RES-Ingenium of Italy and distributed by Richardson Electronics, the FM1K-108 is a Class B pallet amplifier module for FM and HD-FM (87.5 MHz to 108 MHz) transmitters.
Power output is 1 kW with 74% efficiency and with –55 dBc harmonic suppression.
Inside are four Freescale Semiconductor MRF6V2300NBR1 LDMOS transistors.
Onboard protection schemes include overdriving, SWR overvoltage and thermal runaway. The unit is 9.8 inches × 7.1 inches × 2.1 inches.