Active Antenna Application:active antenna with built in RF amplifier for digital Radio Specifications: Impedance: 50/75 Ohm Typ. Receiving frequency range:Band Ⅲ 170~240MHz L-Band 1452~1492MHz Supply voltage:DC5V/DC12V+/-10% From Tuner Working Current:20mA~30mA Operation assurance temp.range: -20°~+60° Storage assurance temp.range: -40°~+85° V.S.W.R.<2 Gain:15dB±3dB(Band Ⅲ),18dB±3dB(L-Band) Cable specification:RG174 with power wire Connector:SMB plug