The Model AR-20H 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 AR-20H produces 20 Watts from a nominal 2 Watts CW/PEP radio input and covers the frequency band of 30-512 MHz. The unit has a DC voltage range of 18 to 36 VDC vehicle power. The unit is designed for use with the latest modern networking formats including ANW2C and SRW. The AR-20H also includes voltage spike suppression, over-temperature protection, RF sensing T/R switching, harmonic filters, lightning protection, and protection against antenna mismatch. The AR-20H has a typical 4dB Noise figure and approximately 6dB gain Low Noise Amplifier in the receive path. The AR-20H was tested to meet specific portions of MIL-STD-461F, MIL-STD-464C, MIL-STD-704F MIL-STD-810G, and RTCA/DO-160G. The amplifier is comprised of a rugged 4-piece aluminum case.