Technalogix TXF-500, Руководство по эксплуатации

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Audio Levels Screen
The Audio Levels Screen allows the user to tweak audio input levels all from the
front touch screen, as seen from the sample screen below:
Step sizes will vary from 0.5 dB up to 2.0 dB depending on the current audio,
MPX, and SCA input levels.
Attenuation levels of 100 dB indicate that attenuation is at maximum for that
particular input signal.