BTS Master™ MT8220T User Guide : Instrument Overview : Interface Screen : Display Settings
 
Display Settings
The Display Settings submenu lets you adjust the screen brightness level and control the auto-dimming function. Refer to Brightness Settings Menu.
You can also turn off the display entirely, as described in Display Settings Menu. To turn the display back on, press any key (except the Power button) three times in rapid succession.
In addition to the default display colors shown in Figure: Spectrum Analyzer Display, you can select different color schemes to suit the ambient lighting conditions. See Figure: Display Color Settings. Some color settings may not be available in all measurement modes.
Black on White — used for printing and viewing in broad daylight conditions
Night Vision — optimized for nighttime viewing
High Contrast — used in challenging viewing conditions
Color on White — used for printing and viewing in broad daylight conditions
 
Display Color Settings