AKG RA4000 B/EW - Active UHF (470–952 MHz, 18 dB) omnidirectional antenna with remote power
The AKG RA4000 B/EW is an active broadband omnidirectional antenna for UHF wireless systems. With an integrated amplifier (total gain approx. 18 dB) and remote feeding via the antenna cable itself (BNC, 50 Ω) , it compensates for losses on long coaxial cable runs and simplifies live deployment and fixed installation. It covers a frequency range of 470-952 MHz with 360° coverage , a water-resistant housing for indoor/outdoor use, and a status LED for verifying operation. It includes a universal adapter for mounting on 3/8″ or 5/8″ mic stands. With the right components, it supports cable lengths of up to 300 m , maintaining stable reception in multi-channel setups.
Main features
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Active omnidirectional (360°) with integrated amplifier to compensate for cable losses.
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UHF broadband 470–952 MHz for maximum compatibility with professional wireless systems.
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Total gain of approximately 18 dB to improve the signal-to-noise ratio over long antenna links.
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Remote power supply via the BNC cable itself from compatible AKG distributors/sources (e.g. PS4000, ASU4000, APS4).
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Indoor/outdoor use thanks to its water and weather resistant construction.
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Includes foot adapter for mounting on 3/8″ and 5/8″ stands.
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Professional BNC connector (50 Ω) and status LED for visual checking.
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Supports up to 300m of cable with appropriate antenna components.
Product benefits
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Uniform coverage : 360° pattern ideal for locations close to the stage or areas with no preferred direction.
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Less loss and noise : Integrated gain compensates for coaxial attenuation in long installations.
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Clean deployment : powered by the RF cable itself, without injectors or additional sources on the mast.
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Field Versatility : Ultra-wide bandwidth suitable for multiple UHF and regulatory bands.
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Reliability : Watertight construction and status LEDs for quick diagnostics.
Use cases
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Events and live performances : reception reinforcement for microphone parks in side or FOH racks.
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Fixed installation : auditoriums, theaters, conference centers with long cabling to a technical booth.
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AV Rental : Robust and fast solution for changing and multi-band configurations.
Description for projects
AKG RA4000 B/EW active UHF antenna; 360° omnidirectional pattern; 470–952 MHz band; total gain approx. 18 dB; remote feeding via BNC cable (50 Ω) from compatible distributors/sources; indoor/outdoor use; includes 3/8″ and 5/8″ foot adapter; supports cable runs of up to 300 m with suitable components; dimensions approx. 220 × 38 mm; weight approx. 65 g; with status LED.
