the pa-18 is an ultra low noise, mast mounted pre-amp system that provides a gain of 15 db and a 1.8 db maximum noise figure. the pa-18 offers overload resistance, a scatter filter and superior rf shielding.general information--manufacturer--antennas direct::general information--manufacturer part number--pa-18::general information--manufacturer website address--antennasdirect::general information--brand name--antennas direct::general information--product model--pa18::general information--product name--pa18 antenna kit::general information--product type--antenna kit::miscellaneous--additional information--8.6 db vhf/15.4 db uhf gain 75 ohm f connector input 75 ohm f connector output 1.8 db noise figure all weather design frequency range: 40-862 mhz::miscellaneous--package contents--power inserter 2 x coax cables::antennas direct low noise uhf/vhf pre amp