Sennheiser ACA 3 Antenna Combiner

The Sennheiser ACA 3 Antenna Combiner is an essential tool for achieving impeccable wireless microphone coverage across multiple rooms and complex sites. Sennheiser, renowned for its engineering precision, brings forth this innovative 2 x 4:1 antenna combiner, designed to work seamlessly with all analog and digital Sennheiser wireless stationary receivers within the frequency range of 470 to 798 MHz. Whether you're dealing with large churches, broadcast installations, outdoor sporting events or reality TV shows, the ACA 3 Antenna Combiner promises a compact, easy-to-deploy solution that meets the growing demand for “zone” systems in various environments.

Built to deliver unity gain performance with maximum reliability, this antenna combiner enhances signal quality and versatility. The switchable DC supply on each antenna input facilitates the use of head amps or active antennas, expanding its utility. This helps in isolating unused antennas, ensuring efficient and uninterrupted operation. Additionally, LED indicators display crucial input states including RF on, DC on, and DC current overload, making troubleshooting a breeze. With robust construction and a versatile operational range, the ACA 3 is an indispensable asset to any professional audio setup.

Key Features

• 2 x 4:1 combiner at unity gain
• Switchable DC on each antenna input for head amps or active antennas like AB 3, AB 3700, A12AD, AB 9000
• RF isolation for unused antennas
• LED indicators for RF on, DC on, and DC current overload

Specifications

• Dimensions: 43x483x205 (HxWxD), 19", 1U
• Connector: BNC female, 50 OHM
• Weight: Approx. 2.75 kg
• Storage Temperature: -20°C to +70°C
• Operating Temperature: -10°C to +40°C
• Power Supply: 100 - 240 V AC, 50/60 Hz
• Gain: 0 dB ±3 dB @ 470-790 MHz
• Output Voltage: 12 V, 250 mA max (overload protected)
• Frequency Range: 470-798 MHz
• RF Input: +10 dBm max, 10 mW/channel
• RF Output IP3: >37 dBm (typ.); 1 dB cp: >20 dBm
• Channel Isolation (when switched OFF): 69 dB (typ.)
• Operating Relative Humidity: 5% to 95%

Package Contents

• Sennheiser ACA 3 Antenna Combiner
• Power Cable
• User Manual