Sennheiser ACA 3

Sennheiser supports the use of distributed antenna systems with a range of high-performance antenna combiners to enable wireless microphone coverage across multiple rooms and large or complex sites. With the growing demand for zone-based systems in various settings-including large churches, broadcast installations, outdoor sporting events, and reality TV shows-Sennheiser engineers have leveraged this expertise to develop the ACA 3, a compact and easy-to-deploy 2 x 4:1 antenna combiner compatible with all Sennheiser analog and digital fixed wireless receivers operating in the supported frequency range of 470 to 798 MHz.

2 x 4:1 unit-gain combiner

Switchable DC power supply provided on each antenna input for head amplifiers or active antennas, e.g., AB 3, AB 3700, A12AD, AB 9000RF; each of the eight antenna inputs can be switched to isolate unused antennas. LEDs indicate input status: RF, DC on, and DC current overload (e.g., faulty antenna cable short circuit).