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Reset Options command, left,
and the Reset Options Menu, right.
Require DGPS
(SeaCharter 320DF only)
You can force the SeaCharter 320DF to require DGPS for reporting a
valid position. (The default setting, off, uses DGPS automatically when
an optional DGPS beacon receiver is connected. However, this auto
mode doesn't require DGPS reception to yield a position.) Here's how to
turn mandatory DGPS on and off.
1. Press
MENU|MENU|↓ to GPS SETUP|ENT|↓ to REQUIRE DGPS|ENT.
2. To return to the last page displayed, press
EXIT|EXIT.
3. You can return to this command and press
ENT again to turn the fea-
ture off.
GPS Setup command, left; Require DGPS
command on the GPS Setup Menu, right.
Screen Contrast and Brightness
To access the Screen menu, press MENU|MENU|ENT.
Once in the Screen menu:
To adjust the display's contrast: