Omnia Audio Omnia.9 - Manual (Page 70)

The FM Menu:
Processing for ITU-R BS.412 / MPX Power Limiting
ITU-R BS.412 requires that the average MPX power be limited to a particular standard and measured
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unusual to see no gain reduction on the Power Limiter meter at all during normal programming and only
2dB - 3dB with very bass-heavy material.
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energy typically present in the lower frequencies. Most of Omnia.9’s “412” presets make use of the WB
AGC2 or WB AGC3 compressors in “Bass Only” mode. This allows the initial portion of the bass
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much higher levels of bass than would otherwise be possible under the limitations imposed by the
regulations.
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enabled in the 'GAB3; 'GAB3; =DU8=K
enabling this mode and remember that doing so will take the unit off-air temporarily.
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Chapter 10: FM Menu - Processing for ITU-R BS.412
70