The Electro-Voice RE3-ACC-ALPA is an Active Log Periodic Antenna (ALPA), commonly known as a “shark fin” antenna, designed to enhance the performance and range of wireless microphone systems. It operates by increasing the reception of desired radio frequency (RF) signals while simultaneously rejecting interference from unwanted directions.

• Active Signal Boosting: Features switchable amplified gain of 3 dB or 10 dB, allowing users to compensate for signal loss in long coaxial cable runs.
• Directional Reception: Offers a focused 100-degree effective working angle, which is more efficient at picking up signals from the stage compared to standard omnidirectional antennas.
• System Extension: Designed to be used in pairs for diversity reception, it is ideal for extending the working range of the Electro-Voice RE3 wireless series.