Omnia Omnia.9, Installation And Operation Manual

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Using an RDS Encoder with Omnia.9’s Psychoacoustic Composite Clipper
It is possible to utilize an external RDS encoder without losing any loudness by integrating it with
Omnia.9’s composite clipper. To do so, you must feed both the encoder’s MPX and Pilot inputs with
an independently-­‐generated 19kHz signal and in turn feed the output of the encoder (with RDS and
Pilot) to one of Omnia.9’s MPX inputs. Omnia.9’s MPX 1 Output will feed the exciter directly.
Be sure to enable the proper MPX input for RDS use (Input 1 or Input 2) in the RDS Mode menu, and
set the MPX 2 Output control to the 19kHz Generator mode. The MPX 2 Output control can be
found in the RDS Menu, the FM Processing Output menu, and in the main I/O menu.
As an aside, it’s interesting to note that Omnia.9 filters the external RDS so tightly that if you
connected the MPX output of a tuner monitoring a completely different station, it will broadcast
that station’s pilot and RDS data!