Expand your wireless coverage with the Sennheiser ACA 3, a dual-channel 4:1 antenna combiner compatible with all stationary Sennheiser analog and digital receivers. Well suited for use in larger venues, houses of worship, and broadcast installations with distributed antenna systems, each channel of the unit allows you to combine and distribute the RF signal from up to four connected antennas to a receiver. The front panel offers switchable DC power controls for the eight BNC inputs (four for each receiver) for active antennas or head amps. The RF signal from each antenna input can also be switched off independently, allowing you easily isolate unused antennas.

At a Glance

• Two-channel 4:1 combiner at unity gain
• Wide UHF frequency range from 470 to 798 MHz ensures compatibility with all Sennheiser analog and digital stationary receivers
• Switchable DC supplied on each antenna input for head amps or active antennas including the AB 3, AB 3700, A12AD, and AB 9000
• RF from each of the eight antenna inputs is switchable to isolate unused antennas
• LEDs indicate input state: RF on, DC on, and DC current overload (for a faulty ‘short circuit‘ antenna cable)