AR's Model AR-50 is a portable, lightweight, fully automatic band-switching RF booster amplifier for multi-band VHF/UHF Tactical Radio equipment employing legacy, proprietary and emerging waveforms. The amplifier covers the frequency band of 30 to 512 MHz using six high speed auto switching filters to assure harmonic suppression and is SINCGARS, HAVEQUICK and ECCM compatible. The amplifier includes Voltage Spike Suppression, RF sensing, T/R switching, Automatic Level Control (ALC), six automatically switched harmonic filter bands (DAMA capable), and protection against antenna mismatch and over-temperature. Protection against accidental polarity reversal is provided. The amplifier comprises a rugged two-piece splash-proof aluminum case. Optional interface coaxial cables are available.