The ASP feature has two levels - Normal and High. If you have high noise levels, try using the “High” ASP setting. However, if you are having trouble with noise, we suggest that you take steps to find the interference source and fix it, rather than continu- ally using the unit with the high ASP setting. However, there are times when you may want to turn the ASP feature off. This allows you to view all incom- ing echoes before they are processed by the ASP feature.
To change the ASP level, press the MENU key then press the up or down arrow keys until the "ASP" menu appears. Now use the left or right arrow keys to change it. When you're finished, press the EXIT key to erase the ASP menu.
SYSTEM SETUP
The following features are available through the "System Setup" menu. To access this menu, press the MENU key, then press the up or down arrow keys until the "System Setup" menu appears. Press the right arrow key. The screen shown at right appears.
Audio/Display
You can adjust the display's contrast and turn the speaker off or on using this menu. To do this, highlight the "Audio/Display" label on the system setup menu, then press the right ar- row key. The screen at right appears.
To adjust the contrast, highlight the "Contrast" menu, then use the left or right arrow key to change it. Look at the pattern at the bottom of this screen to adjust the contrast for the best sharpness.
To turn the speaker off, highlight the
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