Audio Wireless Digitally Tuned Diversity Antenna Distribution Module (DADM226-DT-MK2)

Digitally Tuned Diversity Antenna Distribution Module DADM226-DT-MK2 designed to offer the solution specifically in crowded RF Spectrum to the antenna distribution requirements.

Digitally Tuned Diversity Antenna Distribution Module DADM226-DT-MK2 is a custom design, which offers the solution specifically in crowded RF spectrum to antenna distribution requirements for portable sound bag applications. Designed for where the weight and size matters without sacrificing on performance.

The Diversity Antenna Distribution Module DADM226-DT-MK2 covers frequency range 470-702MHz offering user selectable narrow RF-Bandwidth with high selectivity RF filters, to suit individual applications and frequency allocations.

The Digitally tuned filters individually tuned in the frequency range 470-702MHz, user selectable in 8MHz step, 24MHz bandwidth with adjustable gain between +10dB to -10dB, user adjustable in 1dB steps.

The DADM226-DT-MK2 offers custom tuned “Narrow-Band” RF Filtering for crowded spectrum and provides utmost protection against interfering signals maintaining robust RF integrity.

The DADM226-DT-MK2 is an active antenna distribution system with user-selectable narrow-bandwidth band-pass filtering; eliminates multiple receiver antennas and provides a tidy solution for sound bags, carts, and trolleys with improved RF performance.

There are two industry standard BNC input connectors for antenna inputs, enable use of standard low loss RF extension cables and 2 x 6 mini-RF SMA connectors feeding the diversity receivers.

In applications requiring remote antenna powering, the DADM offers switchable active antenna powering, settings trough the OLED display menu, the RED LEDs indicating power ON/OFF status.

The DADM226-DT-MK2 has an extremely high input signal handling capacity with extremely low noise figure and offers an outstanding inter-modulation performance when compared to other low power devices available.

DC powering is through standard 4-pin Hirose type connector between voltages 10-18Vdc, an additional Hirose dc connector (HR2) can be user configurable as DC IN or DC OUT through the OLED menu. A green LED indicates power-on status of the system box, the OLED continuously displays dc input voltage.

Audio Wireless Diversity Combiner/Distribution 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 702MHz
Input Impedance	50 Ω
Output Impedance	50 Ω
Current Consumption	210mA +/-10mA

 

Digitally Tuned Filter Range	470-702MHz
Bandwidth	24MHz, user tunable in 8MHz steps
Adjustable Gain Range	+10dB to -10dB, adjustable in 1dB steps
OPI3	> +41dBm
Port-port isolation	> 20dB (min)
Noise Figure	< 3 dB

 

Connections
RF Inputs	2 x 50 Ω Standard BNC Sockets
RF outputs to receivers	2 x 6 x 50 Ω mini UHF SMA sockets
Master ON/OFF Switch	Master switch with green led -ON- indicator
Navigation Dial Switch	3-way Dial Switch, Middle press(SET), left and right dial as UP/DOWN the Menu
DC Power IN(HR1)	4-Pin Hirose, Pins1+2(-ve), Pins3+4(+ve)
DC Power IN/OUT(HR2)	4-Pin Hirose, Pins1+2(-ve), Pins3+4(+ve) user configurable as DC-IN or DC-OUT

 

Powering
Operating voltage range	10-18V, input reverse power, and short circuit protected
Active Antenna Powering	Active Antenna Powering, 12V regulated@ 500mA(max.) user selectable
Hirose dc output(HR2)	HR2 can be configured as DC Output or DC input port, DC out is unregulated incoming volts, fused, and protected against reverse polarity

 

Outer Case
Dimensions	178x35x56mm (W x H x D)
Weight	370g
RF Link Cables Supplied	12xSMA-RA to SMA-RA, 40cm 2xBNC-RA to BNC-S Antenna extension cables, 50cm

Digitally Tuned Filter Bands – 24MHz Bandwidth user selectable in 8MHz steps:

BAND No:	FREQUENCY RANGE:	BAND No:	FREQUENCY RANGE:	BAND No:	FREQUENCY RANGE:
1	470-494 MHz	11	550-574 MHz	21	630-654 MHz
2	478-502 MHz	12	558-582 MHz	22	638-662 MHz
3	486-510 MHz	13	566-590 MHz	23	646-670 MHz
4	494-518 MHz	14	574-598 MHz	24	654-678 MHz
5	502-526 MHz	15	582-606 MHz	25	662-686 MHz
6	510-534 MHz	16	590-614 MHz	26	670-694 MHz
7	518-542MHz	17	598-622 MHz	27	678-702 MHz
8	526-550 MHz	18	606-630 MHz
9	534-558 MHz	19	614-638 MHz
10	542-566 MHz	20	622-646 MHz