The AD226-MB is a 2-IN and 2×6 OUT active antenna distribution system with in-built high selectivity, very low insertion loss band-pass filters. The AD226-MB eliminates multiple receiver antennas and provides a tidy sound bag solution with improved RF performance. Advanced filtering design cleans up dirty RF within the selected bandwidth before feeding into the Diversity Receivers this is very important in crowded radio frequency spectrum to protect the receivers from unwanted RF signals.
The AD226-MB is a custom designed Antenna Distribution (AD) system which offers the solution to antenna and dc power distribution requirements for portable sound bag applications. Designed for where the weight and size matters without sacrificing on performance.
The antenna inputs are BNC connectors which enables use of standard low loss RF coaxial extension cables, and the outputs are 2×6 mini-RF SMA connectors feeding the diversity receivers.
In applications when remote antenna powering is needed, the AD offers switchable Active Antenna Powering with RED LEDs indicating power ON/OFF status, the Active Antenna Powering can be turned ON/OFF through the high visibility large display menu.
The AD226-MB 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 tuned with a semi broadband response to suit varying applications; the system RF gain is user adjustable in 1dB steps between +6dB to -10dB, the AD226-MB is compatible with full-digital, digital-hybrid and analogue radio microphone receivers available in the industry.
The AD is externally powered between 10-18Vdc, the dc input connector is an industry standard 4-pin Hirose and there are 4xHirose dc output connectors available for powering auxiliary equipment. Each dc output port can be individually turned ON/OFF through the display menu. The inbuilt Voltmeter continuously displays dc input voltage status.
Audio Wireless Antenna Distribution (AD) and Antenna Combiner (AC) and digitally tuned systems are now first choice among freelance sound engineers, hiring companies as well as major broadcasters for all wireless microphone applications.
KEY FEATURES:
- very wide band Digitally Tuned user selectable Band-Pass Filters
- one pair of antennae feeds up to four diversity receivers
- custom tuned band-pass filtering
- user-adjustable system gain
- active antenna powering
- soft ON/OFF switch for each individual Remote Antenna powering
- DC Distribution: 6 x Hirose dc outputs
- soft ON/OFF switch for each Hirose dc output
- industry standard connectors
- intuitive TFT display menu and LED indicators
- single power source solution
- master ON-OFF switch
- continuous system voltage monitoring (in-built DC Voltmeter)
- CNC machined aluminium custom design, lightweight and rugged fits neatly in any sound bag
| RF Distribution Section | |
| Frequency Range | 470 to 832MHz Digitally Tuned |
| Input Impedance | 50 Ω |
| Output Impedance | 50 Ω |
| Gain (each output) | +6 dB to -10dB, user-adjustable |
| Current Consumption | 180mA @12.0V dc |
| UHF Bandpass Type | |
| Bandwidth | 362MHz Digitally Tuned, user selectable 20 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 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 | Master switch – SET push button doubles for ON/OFF and SET |
| DC IN pinouts | Pin1+2(-ve) and Pin4+3(+ve) |
| DC OUT pinouts | Pin1(-ve) and Pin4(+ve) |
| Powering | |
| Operating Voltage Range | 10-18V dc |
| Remote Antenna Powering | Switchable dc T-bias powering, 12Vdc @ 250mA max, regulated for active antenna powering, short circuit protected |
| Hirose dc output | Unregulated incoming volts, switched under user control |
| Total Current Distribution | 3A (max.) |
| Outer Case | |
| Dimensions | 163x67x36mm (LxWxH) |
| Weight | 380g |
| Supplied RF Link Cables | 12 x SMA-RA to SMA-RA – 40cm 2 x BNC-RA to BNC-S Antenna extension cables – 50cm |
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