Audio Wireless Diversity Antenna Distribution Module (DADM224-MK2)

The DADM224-MK2 is a unique custom design that offers the solution to antenna distribution requirements for portable sound bags. Its custom-tuned RF filters offer excellent rejection for interference-free operation feeding up to four diversity receivers.

User-adjustable settings can be controlled via the intuitive OLED display menu to adjust the system gain and to power remote antenna amplifiers. The DADM224-MK2 is fitted with 2x BNC inputs (with active antenna powering) and 2x 4 SMA antenna output connectors.

The housing is a CNC machined aluminum box to withstand daily location work, finished in black anodizing with clear laser marked legends for long-term readability.

RF DISTRIBUTION SECTION:

• frequency range: 470 to 1164 MHz
• bandwidth: pre-programmed band, specify at order
• input impedance: 50 Ohm
• output impedance: 50 Ohm
• gain (each output): +6 dB to -10dB, user-adjustable
• current consumption: 140mA at 14.0V DC
• OIP3: > +41dBm
• port to port isolation: > 20dB (min.)
• noise figure: < 2 dB

CONNECTIONS:

• RF inputs: 2x 50 Ohm standard BNC Sockets
• RF outputs: 2x 4 50 Ohm SMA sockets
• main ON/OFF switch: master switch

POWERING:

• external power: 10-18V DC
• remote antenna powering: switchable DC T-bias powering, 12Vdc @ 250mA max, regulated for active antenna powering, short circuit protected

OUTER CASE:

• dimensions (W x D x H in mm): 158 x 68 x 34
• weight: 400g