Audemat-Aztec FMB10 - Side Chain Connection

FMB10 User’s Manual Edition 06/2005
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Audemat-Aztec SA – Audemat-Aztec INC
WEB: www.audemat-aztec.com - e-mail: contact@audemat-aztec.com
3.1.2. To connect the FMB10 encoder to a RDS or SCA input of the pilot transmitter : side chain
¾ This configuration is less common but more "professional". It uses the input of the FM pilot provided for
this reason.
The synchronisation of the RDS encoder is done by applying a 19 KHz clock (usually available at an
auxiliary output of the stereophonic encoder) to the RDS encoder "sync/mpx" input.
If no 19 KHz signal is available on the stereo encoder output, apply the multiplex signal directly to the
"sync/mpx" input of the RDS encoder.
¾
It is advised, in this set up to configure "J1" and "J2" of the RDS Silver Encoder PCB to inhibit the "BYPASS"
function in all cases.
STEREOPHONIC
ENCODER
Left audio
Left audio
FM PILOT
TRANSMITTER
Pilot MPX
input
FMB10
FMB10
"sync/multiplex" input
FMB10 encoder
output
Stereo encoder
19KHz output
Pilot "SCA" or
"
RDS
"
input
In some installation, the
stereophonic encoder is
integrated with the pilot
transmitter.