QUICK START – CREATING A NEW PRESET
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2.3 HOW TO CREATE AN ITU-B412 COMPLIANT PRESET FROM A NOT
COMPATIBLE ONE.
Factory Presets ranging from 40 to 49 have been designed to meet ITU-B412 specifications.
Thus, for an ITU-compliant broadcasting, You just need to load one of the ITU Presets (which are
directly derived from the most common not-ITU ones) and turn the MPX POWER CONTROL in the
MPX SETUP block on.
Alternatively, You may want to create an ITU-B412 compliant Preset having as a reference a Not-ITU one.
To do this, select the Preset* You would like to begin from,
open the FINAL LIMITER block and change the Drive control to a
value less than – 1.5 dB (- 1.8 dB suggested).
Also select the Clipping mode = SMOOTH and regulate the
PowerAttenuation parameter to – 9.5 dB.
Enable the MPX POWER CONTROL in the MPX SETUP block.
We suggest to listen to the created Preset for a long time. I.e., if You will be still able to appreciate slow
and light level variations on the created Preset, reduce the Limiter Drive parameter (f.i. set it to - 2.2 dB or –
2.5 dB).
* the Preset to begin from should be carefully selected, as not all factory Presets are suitable for an ITU
operation