Audio Wireless Diversity Antenna Distribution Module Single Band (DADM226-MK2-SB)

The diversity antenna distribution module DADM226-MK2 is a custom design, which offers the solution to antenna and power distribution requirements for portable sound bag applications. Designed for where the weight and size matters without sacrificing on performance. The DADM226-MK2 is a 2 IN and 2x 6 OUT active antenna distribution system with band-pass filtering and user adjustable system gain. The DADM226-MK2 eliminates multiple receiver antennas and provides a tidy sound bag solution with improved RF performance.

There are two industry standard BNC input connectors for antenna inputs which enables use of standard low loss RF extension cables and there 2x 6 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 DADM226-MK2 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 tuning bandwidth is custom designed to suit all popular radio microphone receivers available in the industry. The DADM is externally powered between 10-18Vdc, the dc input connector is an industry standard 4-pin Hirose and there are 6 x Hirose dc output connectors available for powering any auxiliary equipment in any sound bag. Each dc output port can be individually turned ON/OFF through the OLED menu.

A green LED indicates power-on status of the system box and the OLED display continuously displays dc input voltage. Powering for the multiple receivers can be powered through the DC Hirose output sockets. The dc output ports can be turned ON/OFF from the OLED display menu. Audio Wireless wide tuning range systems are now first choice among freelance sound engineers, hiring companies as well as major broadcasters for all wireless microphone applications.

FEATURES:

• one pair of antennae feeds up to six diversity receivers
• pre-programmed band-pass filtering, 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 receiver
• soft ON/OFF switch for each individual remote antenna powering
• soft ON/OFF switch for each Hirose dc output
• CNC machined aluminum custom design, lightweight and rugged fits neatly in any sound bag

RF DISTRIBUTION SECTION:

• frequency range: 470 to 718MHz
• input impedance: 50 Ohm
• output impedance: 50 Ohm
• gain (each output): +6dB to -14dB user adjustable
• current consumption 135mA @14V
• bandwidth: pre-programmed band, specify at order
• OIP3: greater than +41dBm
• port to port isolation: greater than 20dB (min.)
• noise figure: lower than 3 dB

CONNECTIONS:

• RF inputs: 2 x 50 Ohm Standard BNC sockets
• antenna outputs to receivers 2 x 6, 50 Ohm SMA sockets
• main ON/OFF switch: master switch
• DC power OUT: 6 x 4-pin Hirose sockets individually fused and protected against reverse polarity
• DC input pinouts: pin1&2 (-ve) and pin3&4 (+ve)
• DC output pinouts: pin1(-ve) and pin4 (+ve)

POWERING:

• DC input power: 10-18V, reverse power and short circuit protected
• remote antenna powering: switchable dc T-bias powering, 12Vdc @ 400mA max, regulated for active antenna powering, short circuit protected
• Hirose DC output: unregulated incoming volts, switched, individually fused and protected against reverse polarity and short circuit

OUTER CASE:

• dimensions (W x H x D in mm): 192 x 69 x 35
• weight: 415 g