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AKG AB4000 Antenna Booster

Product Information:


for DMS800, WMS4500, WMS470, WMS420 receivers

AB4000 EW is a high-performance antenna booster to compensate signal loss on long antenna cables. One AB4000 EW 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 EW 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/EW, RA4000 EW, SRA2 B/EW and SRA2 EW, and operates in a frequency range from 470MHz to 952MHz.

17dB amplification
for extremely long cable runs

Remote powering via the antenna cable
eliminates any extra installation effort

Cable length adjustment switch
for optimizing antenna signal levels

Water-resistant construction
to withstand extreme weather conditions



Switching bandwidth (from/to) 470 to 952 MHz
Operating temperature range -10 to 50 Celsius
Antenna Input
Amount 1
Type BNC
Gender Female
Note RF input (50 Ohms)
Recommended load impedance 50 Ohms
Antenna Output
Amount 1
Type BNC
Gender Female
Note RF output (50 Ohms)
Recommended load impedance 50 Ohms
Body Metall
Finish black
Dimensions / Weight
Length 110 mm
Height 50 mm
Width 50 mm
Net Weight 150 g