Sennheiser EWD AB R Inline Antenna Booster +10dB Frequency Range 520 - 608 MHz

The Sennheiser EWD AB R is an inline antenna booster engineered to extend the range and reliability of Evolution Wireless Digital systems operating in the 520–608 MHz frequency band. Delivering +10dB of active gain, this compact RF amplifier strengthens signal transmission between wireless transmitters and receivers, addressing coverage challenges in large venues, outdoor stages, and installations with long cable runs or multiple antenna splits. The R variant operates within the 520–608 MHz range, ensuring compatibility with EW-D systems configured for this specific frequency allocation.

Housed in a metal enclosure measuring 125 mm long by 85 mm wide and 30 mm high, the booster weighs just 173 grams and integrates directly into antenna distribution chains via standard BNC connections. The +10dB gain compensates for signal loss introduced by passive splitters, lengthy coaxial cable runs, or challenging RF environments, maintaining strong receiver input levels without requiring additional transmitter power. The unit draws power from the connected receiver or external supply, eliminating the need for batteries and ensuring continuous operation during extended performances or installations. Designed to preserve the digital clarity of the EW-D platform, it amplifies the 520–608 MHz spectrum without introducing noise or intermodulation artifacts.

Features

• +10dB active antenna gain for extended wireless transmission range
• 520–608 MHz frequency range tailored for EW-D R systems
• Inline design integrates directly into BNC antenna distribution chains
• Compact metal housing: 125 mm × 85 mm × 30 mm
• Lightweight 173-gram construction for portable and fixed installations
• Compensates for signal loss in long cable runs and splitters
• No battery required; powered via connected receiver or external source
• 2-year manufacturer warranty included with every unit