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RF filtering protects the receivers against interfering signal and unwanted dirty RF, maintains continuous RF reception in Diversity operations.
Single-Band, Semi-Board Band Antenna Distribution Module for sound bag, cart and trolley applications.
Diversity Antenna Distribution Module DADM226-MK2-SB 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 matter without sacrificing performance.
The DADM226-MK2 is a 2 IN and 2 x 6 OUT active antenna distribution system with custom-tuned band-pass filtering; 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 that enable the use of standard low loss RF extension cables, and there are 2 x 6 mini-RF SMA connectors feeding to the diversity receivers.
In applications when remote antenna power is needed, the DADM offers switchable Active Antenna powering (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 a very low noise figure and offers an outstanding inter-modulation performance when compared to other low power devices available.
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 the 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 the 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 1154MHz (in bands) |
| Input Impedance | 50 Ω |
| Output Impedance | 50 Ω |
| Gain (each output) |
+6 dB to -10dB, user-adjustable in 1dB steps
|
| Current Consumption | 180mA @12.0V dc |
| UHF Bandpass Type | |
| Available Bands to order |
470-1154MHz (please see drop down Menu)
|
| OIP3 | > +41dBm |
| Port to port isolation | > 20dB (min.) |
| Noise figure | < 3 dB |
| Connections | |
| RF Inputs | 2x50 Ω Standard BNC Sockets |
| RF outputs | 12x50 Ω mini UHF SMA sockets |
| DC Power IN | 4-pin Hirose (compatible) socket fused and protected against reverse polarity |
| DC Power OUT | 6x4-pin Hirose (compatible) sockets individually under user control, protected against reverse polarity |
| Main ON/OFF Switch | Master Toggle switch |
| 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 | 192x69x35mm (LxWxH) |
| Weight | 415g |