Lowrance 4000m 操作指南
85
Reset Options
To reset all features to their factory defaults:
Press
MENU
|
MENU
|
↓ to
S
YSTEM
S
ETUP
|
ENT
|
↓ to
R
ESET
O
PTIONS
|
ENT
|
← to
Y
ES
|
ENT
.
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
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 S
ETUP
|
ENT
|
↓ to
R
EQUIRE
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.