AUDIO WIRELESS DA224-MB

The Audio Wireless DA224-MB is a compact, digitally tuned active true-diversity antenna distribution system designed for portable sound-bag, location sound, broadcast and professional wireless microphone applications.

True-diversity distribution: Two independent 50-ohm BNC antenna inputs, ANT A and ANT B, are distributed to four matched diversity output pairs. Antenna A feeds outputs A1-A4 and Antenna B feeds outputs B1-B4, allowing up to four diversity receivers to share one pair of antennas while maintaining separate A and B RF paths.

Digitally tuned filtering: A key feature of the DA224-MB is its user-selectable digitally tuned band-pass filtering. 28 pre-programmed filter selections are provided. Bands 1-24 are common to the three models; Bands 25-28 vary between GLOBAL, UK/DME and JAPAN versions.

Why band-pass filtering is used: Selecting a suitable band-pass filter reduces unwanted out-of-band RF energy presented to connected receivers and can improve operation in congested RF environments.

KEY FEATURES:

• User-selectable Multi-Band Digitally Tuned Band-Pass Filtered Design: The system offers flexibility with a choice of pre-programmed bands tailored for different applications and geographic locations.
• Lightweight Construction: The DA224-MB boasts a compact and lightweight CNC-machined aluminium chassis, making it ideal for use in portable sound bag setups.
• True Antenna Diversity: Supports 4-way true diversity antenna operation, ensuring robust RF signal integrity.
• Advanced RF Filtering: Covers the 470-1260 MHz spectrum with advanced filtering to protect signal quality.
• Gain Control: System gain is user-adjustable in 1dB increments between +6dB* and -21dB, with 0dB set as unity gain. (* band dependent)
• Active Antenna Powering (AAP): User-switchable powering for remote antennas, with orange (red and green lit) LED indicators denoting ON/OFF status via the OLED display menu.
• Monitoring and Indicators Features Include:
• User Interface: Navigation and adjustments are through tactile switches (UP, DOWN, SET), with the SET button doubling as the ON/OFF switch.
• Active Antenna Powering Orange (both Red and Green lit) LED
• Received Signal Strength Indicator (RSSI), Green LED
• 50dB RSSI gauge metering - RSSI Bars for A and B antennas
• Signal overload (OL) RED LED
• Continuous system dc voltage monitoring via OLED display menu setting
  

PRE-PROGRAMMED FREQUENCY BANDS

The DA224-MB offers a wide selection of pre-programmed frequency bands, covering 470–1260MHz.

There are 3 models of the DA224-MB available and they only vary between Band 25 to Band28:

MODEL 1: DA224-MB GLOBAL:

MODEL 2: DA224-MB UK/DME:

MODEL 3: DA224-MB JAPAN: