Model AR-20 is a portable, lightweight, fully automatic band-switching RF booster amplifier for multi-band VHF/UHF Tactical Radio equipment. Covering the frequency range of 30-512 MHz the AR-20 produces 20 Watts from a 1 to 2 Watts PEP radio input. This amplifier has multiple input DC voltage options including operation from a single battery (XX90 battery) or 12 and 24 VDC vehicle power source. The unit is designed for use with the latest modern networking formats like ANW2, WNW and SRW. It also includes Voltage Spike Suppression, Over Temperature Protection, RF sensing, T/R Switching, Automatic Level Control (ALC), Harmonic Filters, Co-Site filters and protection against antenna mismatch. The AR-20 also has a built-in internal LNA that can be switched on or off by the front panel switch to improve SATCOM receive performance. The amplifier is comprised of a rugged 3-piece aluminum case. Optional interface coaxial cables and DC battery cables are available.