
DADM226 Quick Setup Guide
!
Audio!Wireless!Diversity!Antenna!Distribution!Module!
(DADM226)!consists!of!3!sections:!
A. Antenna!Distribution!Section!
B. Mast!Head!Amplifier!(MHA)!Powering!Section!
C. DC!power!distribution!Section!
A. Antenna!Distribution!Section!
This! section! includes! 2! x! 2! BNC! antenna! Inputs! and!
distributes!the!received!signal!to!2!x!6!SMA!RF!Output.!
The!RF!section!has!a!custom! designed!Band-Pass!Filter!to!
reject!the!unwanted!signals!outside!the!pass!band.!
!
B. Mast!Head!Amplifier!(MHA)!Powering!Section!
Switchable! T-bias!may! be! used! to! power! in-line! antenna!
amplifiers! or!remote! antenna! booster! amplifiers! (active!
antennas)!to!compensate!long!antenna!extension!cables.!
!
C. DC!Power!Distribution!Section!
This! section! includes! one! dc! input! connector!(Hirose)!
located! at! the! front! panel(green! LED! ON)! and! 3! x! DC!
Hirose!outputs!at!the!RHS! panel! (individually!switchable)!
to! power! Radio! Receivers! or! any! auxiliary! sound!
Step-by-Step!Setup:!
1. Connect!the!Receivers!with!a!short!RF!link!
cable! to! “Antenna! A! Outputs”! and!
“Antenna!B!Outputs”!(SMA).!Care!should!
be! taken! so! that! Antenna! “A”! and! “B”!
outputs! are! connected!correctly!to! the!
corresponding!antenna! “A”! and! “B”!
inputs! on!the! Receivers! for! proper!
2. Connect! the! antennas! with! a! short!
antenna! extension! cable! to! the! two! BNC!
Antenna!Input!connectors.!
3. Turn! ON/OFF!switch! to! ON! –! the! system!
is!ready!(GREEN!LED!ON).!
4. Use!the!UP!arrow!to!navigate!through!the!
5. “AW-RX! POWER”!select! ON!to! power!
“Audio! Wireless! or! Micron! receivers”!
through! antenna! inputs,! for! all! other!
receivers!this!function!MUST!be!OFF.!
6. “MHA! POWER”!activated! ON!to! power!
active!antenna!amplifiers!(RED!LED!ON)!
7. HIROSE! DC! POWER!activated!ON!for! dc-
distribution.!
DC!Power!Distribution!Section!
Control!Panel!with!OLED!Display!
Antenna!Distribution!Section!