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STEP 4
In order to derive timing information from the 19kHz stereo pilot, the rear-panel PILOT OR MPX
INPUT connector monitors the output of the stereo generator. When sidechain operation mode is chosen
the RDS OR MPX OUTPUT contains only the RDS sub carrier, the composite MPX signal is not routed
through SmartGen Micro. This operating mode preserves the multiplex signal integrity and assures
uninterrupted program transmission, in case of encoder failure event.
Originally SmartGen Micro is configured for sidechain operation.
"Sidechain" Encoder Connection
1. Connect a BNC 'T' adapter to the
composite/MPX output of the stereo
generator;
2. Using a suitable cable, connect one side
of the 'T' adapter directly to the wideband
(composite/ MPX) input of the FM exciter;
3. Using a suitable cable, connect the other
side of the 'T' adapter to the PILOT OR
MPX INPUT of SmartGen Micro;
4. Cable the RDS OR MPX OUTPUT of the
encoder to the second wideband
(subcarrier) input of the FM exciter.
NOTE: We strongly recommend the usage
of the Sidechain operating mode.
STEP 5
If Loop-through operation mode is chosen, the RDS OR MPX OUTPUT includes the composite MPX
program signal to the RDS sub carrier. In loop-through mode the internal bypass relay will pass-through
the multiplex signal in case of an encoder power failure event.
"Loop-through" Encoder Connection
1.
Connect the output of the stereo
generator directly to the PILOT OR MPX
INPUT of SmartGen Micro;
2. Connect the RDS OR MPX OUTPUT of
the encoder to the composite/MPX
wideband input of the FM exciter.
Sidechain operating mode
2
1
WIDEBAND INPUTS
Loop-through operation mode
USB
1
WIDEBAND INPUTS
1
FM STEREO GENERATOR
MPX OUTPUT
3
PILOT OR MPX
RDS OR MPX
USB
INPUT
4
FM EXCITER / TRANSMITTER
2
3
FM STEREO GENERATOR
MPX OUTPUT
1
PILOT OR MPX
RDS OR MPX
INPUT
2
FM EXCITER / TRANSMITTER
2
3
SmartGen Micro
OUTPUT
SmartGen Micro
OUTPUT
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