Beyond all limits for DMS800,DMS700,WMS4500,WMS470,WMS450 receivers AB4000 is a high-performance antenna booster to compensate signal loss on long antenna cables. One AB4000 can compensate 3.5 to 17.5 dB of cable attenuation. Up to two boosters can be cascaded in case of extremely long cable runs.

The AB4000 comes in a rugged,waterproof metal housing and features an in-line power LED display and cable length adjustment switches. It works with all active and passive AKG antennas,RA4000 B/W,RA4000 W,SRA2 B/W and SRA2 W,and operates in a frequency range from 500MHz to 865MHz.