Audio Wireless DADM224 Diversity Antenna Combiner and Distribution Module
The Audio Wireless DADM224 Diversity Antenna Combiner and Distribution Module is a custom design that offers the solution to 2-Zone antenna Combining and Distribution requirements for portable sound bags and sound cart/trolley applications.
The DADM224-2C is a 4 IN and 2 x 4 OUT active antenna combiner and distribution system with in-built low loss band-pass filtering, LNA and user-adjustable gain stage at each RF input. It enables the user to cover a 2-zone wider area with improved RF reception, eliminates multiple receiver antennas and provides a tidy sound bag, cart, and trolley set-up applications with improved RF coverage and performance.
- Available Bandwidths: 470-700MHz, 470-608MHz, 470-663MHz, 470-960MHz, 470-990MHz, 510-622MHz, 960-1164MHz
- Input Impedance: 50 Ω
- Output Impedance: 50 Ω
- Gain (each output): +6 dB to -14dB, user-adjustable
- Current Consumption: 270mA at 14.0V dc
- OIP3: > +41dBm
- Port to port isolation: > 20dB (min.)
- Noise figure: < 2 dB
- RF Inputs: 4 x 50 Ω Standard BNC Sockets
- RF output: 2 x 4 x 50 Ω mini UHF SMA sockets.
- DC Power Out: 4 x 4-pin Hirose sockets individually fused and protected against reverse polarity.
- Powering: 10-18V dc
- Remote Antenna Powering: Switchable dc T-bias powering, 12Vdc @ 250mA max, regulated for active antenna powering, short circuit protected
- Dimensions: 192x82x35mm (W x H x D)
- Weight: 420g
There are four industry-standard BNC input connectors for antenna inputs that enable the use of standard low loss RF extension cables, and there are 2 x 4 mini-RF SMA connectors feeding the diversity receivers. Each antenna input can be individually turned ON/OFF via the OLED menu when not used, with a LED indicator showing the status of each Antenna input. The four switchable DC Hirose power sockets supply dc power to sound bag or sound cart equipment. DADM224-2C is a CNC machined aluminum box to withstand daily location work, finished in black anodizing with clear laser marked legends for long-term readability.