AUDIO-TECHNICA ATW-DA49a Signal Splitter

Audio-Technica ATW-DA49a UHF Antenna Distributor

The Audio-Technica ATW-DA49a is an active antenna distribution system with unity-gain, operating in an ultra-wide frequency range of 470–990 MHz. This means it is compatible with almost all UHF wireless systems. The device is designed to compensate for signal loss during distribution, ensuring that receivers receive a signal of the same strength as was received by the antennas.

One of the key advantages of this model is its high OIP3 (+32 dBm) rating. This ensures exceptional resistance to intermodulation distortion (interference), which often occurs when using many wireless microphones simultaneously. The system also features +12V DC power on the antenna inputs (for active antennas or boosters) and special "Cascade" outputs, allowing multiple distributors to be connected in series (to serve even more receivers without using additional antennas).

Key Features

• Broadband operation: 470–990 MHz range (suitable for most UHF systems).
• Active Unity-gain: Compensates for cable and splitting losses (0 dB loss).
• High OIP3: +32 dBm for maximum protection against signal mixing.
• Antenna power: +12V DC / 250 mA on each input (for active antennas).
• Cascading connection: Additional outputs for connecting another distributor.

Technical Specifications

• Manufacturer: Audio-Technica
• Model: ATW-DA49a
• Frequency range: 470 MHz – 990 MHz
• Gain: 0 dB (±2 dB) (Unity-gain)
• Inputs: 2 x BNC (female)
• Outputs:
  • 4 x 2 (distribution outputs for receivers)
  • 1 x 2 (cascade outputs for another distributor)
• Impedance: 50 ohm
• Antenna power: +12V DC
• Dimensions: 420 x 44 x 180 mm (1U size)
• Weight: 1.5 kg

What's in the box?

• 1 x ATW-DA49a antenna distributor
• 10 x BNC cables (for connecting to receivers)
• 1 x Power adapter
• 1 x Rack mount kit (ears)
• 1 x IEC power cable

Intended for?

• Large wireless systems (4+ microphones) to avoid antenna clutter.
• Professional events where stable signal without intermodulation is critical.
• Installations requiring power for remote active antennas.