Reset Options; Require Dgps - Lowrance GlobalMap 4000M Operation Instructions Manual

Reset Options

To reset all features to their factory defaults:
Press |
MENU MENU
| .
Y ENT
ES
NOTE:
Reset Options does not erase any waypoints, routes, icons, plot trails or
sonar logs.
Reset Options command, left, and the Reset Options Menu, right.

Require DGPS

You can force the GlobalMap 4000M 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
2. To return to the last page displayed, press
3. You can return to this command and press
ture off.
|↓ to
S
YSTEM
| |↓ to
MENU GPS S
| |↓ to
S ENT
ETUP
| |↓ to
ENT
ETUP
85
R O
ESET PTIONS
R DGPS
EQUIRE
| .
EXIT EXIT
again to turn the fea-
ENT
| |← to
ENT
| .
ENT