AUDIO WIRELESS – DADM226-UWB – 470-1045MHz

ULTRA WIBE-BAND DIGITALLY TUNED – Frequency Range: 470-1045 MHz (including UK DME Band), DADM226-UWB.

 

Pre-programmed Frequency Bands 470-1045MHz:

 

BAND No:	FREQUENCY RANGE:	BAND No:	FREQUENCY RANGE:	BAND No:	FREQUENCY RANGE:
1	470-608MHz	6	520-700MHz	11	470-865MHz
2	470-663MHz	7	550-608MHz	12	470-960MHz
3	470-700MHz	8	550-663MHz	13	510-960MHz
4	510-608MHz	9	550-700MHz	14	550-960MHz
5	510-663MHz	10	470-832MHz	15	520-1045MHz

KEY FEATURES:

• One pair of antennae feeds up to six diversity receivers
• 15 User – selectable – Pre-programmed band-pass filtering, covering the UK part of the UK DME band
• User-adjustable system gain +5dB to -10dB
• Remote Active antenna powering
• DC Distribution – 6 x Hirose dc output ports
• 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 Active 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

The DADM226-UWB is an active antenna distribution system designed for Ultra-Wide-Band (UWB) applications. It features 15 selectable band-pass filters, providing coverage across a frequency range of 470-1045 MHz. This selective band-pass filtering effectively rejects out-of-band unwanted RF signals, ensuring better protection for the receivers.

The antenna inputs utilise BNC connectors, allowing the use of standard low-loss RF extension cables. The outputs consist of 12 mini-RF SMA connectors that feed the diversity receivers.

For applications requiring remote antenna power, the DADM offers user-switchable Mast-Head Amplifier (MHA) power, with red LEDs indicating the ON/OFF status. Power can be activated through the OLED display menu.

The DADM226-UWB has a very high input signal handling capacity with an exceptionally low noise figure and shows remarkable inter-modulation performance compared to other available low-power devices.

The tuning bandwidth can be selected by the user from a choice of 15 pre-programmed bands, allowing for adaptation to different applications and geographical locations. Additionally, the system gain is adjustable in 1dB increments, ranging from +5dB to -10dB, with 0dB representing unity gain. The DADM226-UWB is compatible with digital, hybrid, and analogue radio microphone receivers commonly available in the industry.

The DADM operates using a power source of 10-18 VDC, connected through a standard 4-pin HRS compatible connector at the DC input. It features six HRS DC output ports for powering auxiliary equipment, which can be turned on or off via the OLED menu. A green LED indicates the Power-On status of the system box, and the OLED display continuously shows the DC input voltage, functioning like a multi-meter.

Digitally tuned audio wireless and semi-broadband systems are the top choice for freelance sound engineers, rental companies, and major broadcasters in all wireless microphone applications.

Technical Specification:

RF Distribution Section
Frequency Range	470 to 1045MHz Digitally Tuned
Input Impedance	50 Ω
Gain (each output)	+5 dB to -10dB, user-adjustable
Current Consumption	150mA @12.0V dc

 

UHF Bandpass Type
Bandwidth	575MHz, user selectable 15-pre-programmed Band-Pass-Filters
OIP3	> +41dBm
Port-to-port isolation	> 20dB (min.)
Noise figure	< 3 dB

 

Connections
RF Inputs	2×50 Ω Standard BNC Sockets
RF outputs	12×50 Ω mini UHF SMA sockets
DC Power IN	4-pin Hirose (compatible) sockets are individually fused and protected against reverse polarity
DC Power OUT	6×4-pin Hirose (compatible) sockets individually under user control, protected against reverse polarity
Main ON/OFF Switch	Toggle Switch
DC IN pinouts	Pin1+2(-ve) and Pin4+3(+ve)
DC OUT pinouts	Pin1(-ve) and Pin4(+ve)

 

Display and LED Indicators
Display	128×64 individual OLED pixels
ON Indicator	Green LED
Active Antenna Powering (MHA) indicators	Red LED

 

Powering
Operating Voltage Range	10-18V dc
Remote Antenna Powering (MHA-PWR)	Switchable DC T-bias powering, 12Vdc @ 500mA max, regulated for active antenna powering, short circuit protected
Hirose DC output Distribution	Unregulated incoming volts, switched under user control
Total Current Distribution	4A (max.)

 

Outer Case
Dimensions	163x67x36mm (L x W x H)
Weight	380g