Audio Wireless DADM228-P Diversity Antenna Distribution

Audio Wireless DADM228-P Diversity Antenna Distribution
Audio Wireless DADM228-P Diversity Antenna DistributionAudio Wireless DADM228-P Diversity Antenna DistributionAudio Wireless DADM228-P Diversity Antenna Distribution

Audio Wireless DADM228-P Diversity Antenna Distribution

Frequency band 470-700MHz. Other bands are available email us for more options.

Diversity Antenna Distribution Module DADM228-P is a custom design, which offers the solution to antenna and power distribution requirements for portable sound bag and sound trolley applications. Designed for where the weight and size matters without sacrificing on performance.

The DADM228-P is a 2xIN and 2x8 OUT active antenna distribution system with in-built band-pass filtering; the DADM228 eliminates multiple receiver antennas and provides a tidy sound bag solution with improved RF performance.

The DADM228-P has a very high input signal handling capacity with very low noise figure and offers an outstanding inter-modulation performance when compared to other low power devices available.

The system box offers, +6dB to -10dB gain user adjustable in 1dB steps to suit individual applications. The user adjustable gain offers flexibility optimising system RF gain budget to suit, Digital, Hybrid and Analogue receivers.

There are two industry standard BNC input connectors for antenna inputs which enables use of standard low loss RF extension cables, and there 2x8 mini-RF SMA connectors feeding the diversity receivers. 

In applications when remote antenna powering is needed, the DADM offers switchable MHA powering with RED LEDs indicating power ON/OFF status, the MHA powering can be turned ON/OFF through the OLED display menu.

The antenna inputs compromise a very low loss very selective band-pass filter designs to reject unwanted frequencies below and above the tuning bandwidth.

The DADM is externally powered between 10-18Vdc, the dc input connector is an industry standard 4-pin Hirose, a green LED indicates power-on status of the system box and the OLED display continuously displays dc input voltage.

The DC distribution is with 6xHirose dc output connectors for powering auxiliary equipment in any sound bag. Each dc output port can be individually turned ON/OFF through the OLED menu.

Audio Wireless Diversity Antenna and dc power distribution systems are now first choice among freelance sound engineers, hiring companies as well as major broadcasters for all wireless microphone applications.


  • One pair of antenna feeds up to eight diversity receivers
  • Built-in band-pass filtering and signal splitters
  • User adjustable gain
  • Remote antenna powering
  • 6 x Hirose dc outputs
  • Industry standard connectors
  • Intuitive OLED display menu and LED indicators
  • Single power source solution
  • Master ON-OFF switch
  • Continuous system volts monitoring
  • Soft ON/OFF switch for each individual Remote Antenna powering
  • Soft ON/OFF switch for each Hirose dc output
  • CNC machined aluminium custom design, lightweight and rugged - fits neatly in any sound bag 


Frequency Range 470 to 1160MHz (in bands)
Available Bandwidths  470-700MHz, 470-608MHz, 470-663MHz, 470-960MHz, 960-1164MHz
Gain at each output +6dB to -10dB, adjustable in 1dB steps
Input impedance 50 Ω
Output Impedance 50 Ω
OIP3 > +41dBm
Port to port isolation > 20dB (min.)
Noise Figure < 3 dB
Selectivity -38dB@420MHz and -30dB@750MHz min (for the 470-700MHz band)
Current consumption 135mA@14V


Antenna inputs 2 x 50 Ω Standard BNC sockets
Output to receivers 2 x 8 x 50 Ω mini-UHF SMA sockets
Main ON/OFF Switch Master switch
DC Power OUT 6 x 4-pin (2 panels x 3) Hirose sockets individually fused and protected
DC IN pinouts Pin1&2 (ground) and Pin3&4 (+dc)
DC OUT pinouts Pin1 (ground) and Pin4 (+dc)


External Power 10-18V, (polyfused, reverse power protected)
Hirose DC IN pinouts Pins1+2: Negative dc, Pins3+4: Positive dc, polyfused and protected against reverse polarity
Remote Antenna Powering +12Vdc@250mA, regulated, short circuit protected

Dimensions & Weight

Dimensions 192x42x64mm (W x H x D) 
Weight 500g

Delivery Services

At Pinknoise Systems we like to offer our customers a wide choice of delivery options for their orders, and our prices are affordable and competitive. We also use only the best, most reliable couriers and delivery services to get your equipment where it needs to be - quickly and securely. Please find an outline of our services, prices and timescales below.

Delivery Times

Delivery times are based on when the package(s) leaves our premises. Sometimes, due to stock restrictions or a non-completed order, delivery may take longer as there is a delay with couriers, which is unfortunately out of our hands. If your order is urgent, or details change, please do let us know.
For full details, fees, and time schedules, please see our Delivery Information page.

Returns & Refunds

New items: You can return goods you have ordered from us for any reason, at any time within 30 working days of receipt (14 to initiate the process), for a full refund or for an exchange for a different product from our range. Items must be packed suitably and insured for full loss in the event of a delivery problem. Pinknoise Systems will not be responsible for lost or damaged return goods. Lost or damaged goods may affect the level of refund you receive. For full details of our returns policy, please click here.

£1,074.00 (£895.00 Exc. VAT)



Incoming, expected soon

Delivery hours
UK ORDERS: Order soon for delivery on using our express service

Model:  AW-DAD-M228-P
Part No.:  DADM228-P
Manufacturer:  Audio Wireless

Audio Wireless
Contact us for advice

Need advice? Give us a call

(+44) 01453
825 802

International Delivery

International delivery

We ship across Europe and around the world and have a multitude of shipping options available to our international customers during the checkout, including express delivery for urgent orders.


We have a next day shipping option available for the UK with our DPD courier service, which features delivery alerts, personal delivery preferences and driver tracking with the DPD mobile app.


Spread the cost to maximise your capital. Just call our helpful sales team on 01453 825 802, from 9.00am - 5.00pm, to discuss these options and find out what's available to you.

We accept Klarna, PayPal, Maestro, Visa, Mastercard & American Express

Audio Wireless DADM228-P Diversity Antenna Distribution

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