Sennheiser A 3700 Omni-directional Antenna, With Intergrated Ab 3700 Booster, 470-866mhz

The Sennheiser A 3700 is an active omni-directional receiving antenna with an integrated AB 3700 booster, designed for professional Sennheiser wireless microphone systems. It provides reliable RF reception across 470–866 MHz and is ideal for large venues, broadcast setups, live events, churches, theatres, and touring systems.

Key Features

• Active omni-directional antenna
• Integrated AB 3700 booster
• Frequency range: 470–866 MHz
• Adjustable gain: bypass, 5 dB, 10 dB, 15 dB
• BNC RF connection
• 50 Ohm impedance
• Power supplied via antenna cable
• Compatible with Sennheiser EM 3731/3732, EM 2000/2050 and EM 6000 receivers
• Suitable for indoor and outdoor professional use

Specifications

• Frequency Range: 470–866 MHz
• Polar Pattern: Omni-directional
• Gain: -3 dB bypass, 5 dB, 10 dB, 15 dB
• RF Connector: BNC
• Impedance: 50 Ohms
• Power Supply: 9–15 V DC via antenna cable
• Mounting Thread: 3/8″ or 5/8″
• Dimensions: Approx. 250 × 165 × 23 mm
• Weight: Approx. 390 g including booster