Lowrance electronic X-4 Marine GPS System User Manual


 
33
Noise Reject and ASP
The ASP (Advanced Signal Processing) feature is a noise rejection
system that constantly evaluates the effects of boat speed, water condi-
tions and electrical interference and automatically gives you the best
display possible under most conditions. The ASP feature has three set-
tings — Off, Low and High.
To change the ASP setting:
1. Press MENU until the NOISE REJECTION menu appears. Use to select
the desired setting.
2. Press
PWR to clear the menu.
Depth Display
Depth may be displayed in a small, medium or large size, or can be
turned off completely.
To display Depth:
1. Repeatedly press MENU until the DEPTH menu appears. Use to se-
lect the size of the depth display.
2. Press
PWR to clear the menu.
Depth display set to large (left). Voltage display set to small (right).