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MPX
The Stereo MPX is signal used for FM Stereo broadcasting and represents a complex combination
of the following signals:
- Sum of the left and right audio channels occupying the band from 0 to 15kHz;
- Difference signal (Left minus Right) located in the band 23-53kHz;
- Pilot tone at exactly 19 kHz;
- RDS signal, used for transmitting text and other data, may also be added. It occupies a narrow
band around 57kHz.
DB7001 has a built-in stereo generator and Radio Data Systems (RDS/RBDS) encoder. The
amount of each signal contained in the final MPX signal is called injection level.
MPX out Configuration
Settings> MPX>MPX Source
There are three types of MPX signal that you can choose from:
1.
RAW MPX
– Directly modulated by your station RAW MPX without any further processing;
2.
Stereo & RDS Gen
– Generated by the internal stereo and RDS generators;
3.
Calibration Tone 400Hz
– used to adjust the transmitter MPX input.
NOTE:
Raw MPX is used only when Main Station is the current audio source. Stereo & RDS
Gen is used automatically for all other audio sources. Calibration Tone is active regardless of the
current audio source.
Содержание DB7001
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