Specifications

Chapter 6 The Extended Audio Matrix. PRELIMINARY Release MSD Software Manual.
7.3.4 PPM Peak and Hold. 
Using the [Hold] function it is possible to check the maximum signal level
during, or especially after, a recording session. Thus you can secure that the
levels does not exceed any pre-determined limits.
If [PEAK] or [DUAL] is enabled and [HOLD] is active then the peak and dual
segments will remain at the highest reading until the [CLEAR] key is pressed.
7.3.5 Input Gain 
The input sensitivity of the PPM meter can be increased by +20dB by selecting
the [20dB] key. This function is used to obtain the best possible dynamic
range and accuracy of measurement from weak signals. A red +20 indicator in
the top left corner of the PPM meter window indicates that this function is ON.
Please see the Type I scale on the previous page.
Page 26 of 64. PRELIMINARY Release