Specifications

3.4.6 : Operating Brightness and Contrast Controls
Simply stated, the Brightness and Contrast controls allow the op-
erator to adjust the screen appearance. Moving either slider left
reduces the screen brightness/contrast, while moving the slider
right increase the screen brightness/contrast.
To be more precise, the Brightness and Contrast controls actually
control how the underlying sonographic data maps to the screen
color and/or intensity. Explained this way, the brightness and
contrast actual control the level of sonographic detail that will be
mapped to the screen. The brightness control actually establishes
the mean value of the display, while the contrast controls the lin-
ear range or sensitivity around the mean value.
Once you master operation of the brightness and intensity con-
trols, you will find them a great tool to use to discover the subtle
details of bat vocalizations.