3. Connect the MPX output of your audio processor (or stereo generator) to the MPX input
of your RDS encoder.
4. Connect the MPX output of your RDS encoder to the MPX input on the back of the trans-
mitter.
5. Plug the power cord into the power supply module on the rear panel of the transmitter.
6. Connect the required remote control / monitoring ports (Ethernet, RS232,
Alarms/Triggers Port).
7. In the RF settings menu, set MPX source to external.
8. Once the transmitter is operating, set the correct carrier frequency and power from the
RF settings menu. Check reflected power is OK.
9. Check the modulation level - if the modulation level is low, adjust the MPX output level
on your audio processor (or stereo generator), RDS encoder and/or the MPX input level
on the back of the transmitter. The maximum modulation should not exceed 75kHz.
10. Check the documentation that came with your audio processor on how to set/check
the proper pilot injection level.
11. Check the documentation that came with your RDS encoder on how to set/check the
proper RDS injection level.
In this setup, the stereo multiplex is generated in the audio processor, it is then fed through the
RDS encoder where the RDS subcarrier is added. It is then fed directly into the transmitter’s
exciter. Note that the transmitter’s onboard processing will have no effect on the signal in
this configuration.
6.2.4 Transmitter with an external audio processor and RDS (Side Chain Connection)
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