Sennheiser AB 4-DW Antenna Booster (790 - 865 MHz)

Sennheiser's AB 4-DW is an aerial booster that boosts the filtered signal by 12dB. So you compensate for signal losses caused by long cables. The frequency range of this AB 4-DW is 790-865 MHz. Power is supplied to the AB 4 from the receiver via the supplied BNC cable so an external power supply is not needed. With its compact metal housing, this booster can take a beating. The AB 4 is compatible with Sennheiser's EM 100 G4 or EM 300-500 G4.