Show Dynamic Range
Allows you to see the waveform with respect to the entire dynamic range of the A/D converter. Activating this function modifies the vertical scale (and automatically adjusts the waveform) so the + and - full scale counts are placed at the top and bottom of the waveform strip.
An A/D converter operates in terms of counts. If X represents the bit resolution of the A/D converter, then the + full scale limit is [2(x-1)-1] counts and the - full scale limit is 2(x-1) counts. For example if you have a 12-bit A/D converter, the + full scale limit is 2047 counts and the - full scale limit is 2048 counts.
By seeing the waveform with respect to the entire dynamic range of the A/D converter, you see how much of this range you are using. Ideally, the waveform should use the entire dynamic range of the A/D converter in order to take full advantage of its resolution.
In
the Scaling menu click on Show Dynamic Range.
Choose
Scaling Show Dynamic Range (ALT, C, R).
This modifies the vertical scale (and automatically adjusts the waveform) to place the + and - full scale A/D converter counts at the top and bottom of the waveform strip, thus showing you the waveform file with respect to the entire dynamic range of the A/D converter.
Subsequent activation's of the Show Dynamic Range command does nothing, the function does not toggle. To get back to the display you had prior to activating the Show Dynamic Range function, use the Undo command on the Edit menu.
Keystroke Example
|
Keystroke |
Comment |
|
ALT+R |
Show dynamic range of waveform. |
|
CTRL+Z |
Undo the Show Dynamic Range function. |