Audio Wireless Diversity Antenna Distribution Module without dc distribution (DADM228)

KEY FEATURES: One pair of antenna feeds up to eight diversity receivers Built-in band-pass filtering and signal splitters User adjustable gain Remote antenna powering 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 CNC machined aluminum custom design, lightweight and rugged – fits neatly in any sound bag or sits in the cart Designed for where the weight and size matters without sacrificing on performance. The DADM228 is a 2xIN and 2×8 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. There are two industry standard BNC input connectors for antenna inputs which enables use of standard low loss RF extension cables, and there 2×8 mini-RF SMA connectors feeding the diversity receivers. The DADM228 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 optimizing system RF gain budget to suit, Digital, Hybrid and Analogue receivers are available in our industry. In applications when remote antenna powering is needed, the DADM offers switchable active antenna 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. 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. RF Distribution Section Frequency Range 470 to 1164MHz(in bands) Input Impedance 50 Ω Output Impedance 50 Ω Gain (each output) 6 dB to -10dB, user adjustable Current Consumption 135mA UHF Bandpass Type Available Bandwidths 470-700MHz, 470-608MHz, 470-663MHz, 470-960MHz, 470-990MHz, 510-622MHz, 960-1164MHz (UK DME BAND), 470-1164MHz (Covers UK DME BAND) OIP3 > 41dBm Port to port isolation > 20dB (min.) Noise figure < 3 dB Connections RF Inputs 2 x 50 Ω Standard BNC Sockets RF/DC outputs to receivers 2 x 4 x 50 Ω mini UHF SMA sockets Main ON/OFF Switch Master switch Powering External Power 10-18V dc Remote Antenna Powering Switchable dc T-bias powering, 12Vdc @ 200mA max, regulated for active antenna powering, short circuit protected Outer Case Dimensions 192x42x64mm (W x H x D) Weight 465g Related Accessories 16 x SMA to SMA link cables (custom lengths) 2 x BNC to BNC Antenna extension cables (custom lengths) 2 x monopole BNC Antennae 1 x 4-pin Hirose to 4-pin Hirose dc power cable (custom lengths)1 x LPDA-DIV 2 x LPDA-P 2 x LPDA-A-WB 2 x LPDA-A-DT V2