Lowrance electronic GlobalMap 12 - Manual (Page 56)

52
press the right arrow key. A screen similar to the
one at right appears after several seconds. A mes-
sages shows if the unit passed the self-test, or
failed. If the unit fails the self-test, contact the Low-
rance customer service department.
Execute GPS Cold Start
When the GlobalMap 12 is turned on for the first
time “out of the box”, it automatically does a “cold-
start”. A cold start means the unit doesn’t have any information that helps
it determine which satellites are available.
If the unit can’t lock on to the satellites using the data you’ve given it, or if
it has trouble finding the satellites, perhaps it is using the wrong data. This
can happen if you’ve entered the wrong data by accident when initializing
the receiver. For example, if you entered east longitude instead of west.
Or if you’ve moved a long distance with the unit turned off.
To send a cold start message to the receiver, high-
light the “Execute GPS Cold Start” label on the GPS
Setup menu, then press the right arrow key. A
message appears, asking you if you really want to
do a cold start. Follow the instructions on this mes-
sage page.
The unit will begin searching for the satellites. It
can take as long as 5 minutes for it to lock on to
the necessary satellites, but it usually takes less time. Remember, when it
does, your local time and possibly date can be wrong. Use the method
shown in the initialization section at the front of this manual to change
them, if needed. Once this is done, an internal clock will keep the correct
time, even when the unit is turned off. The GPS system updates this clock
when the unit is locked on to the satellites.
ALARMS
The GlobalMap 12 has several alarms. You can set an arrival alarm to
sound a warning tone when you cross a preset distance from a waypoint.
For example, if you have the arrival alarm set to .1 mile, then the alarm will
sound when you come within .1 mile of the recalled waypoint. The course
deviation indicator alarm (CDI) can sound a warning when your track drifts
too far to the right or left of the line to the waypoint. For example, if the
alarm is set to .1 mile, then the alarm will sound if you drift .1 of a mile or
more to the right or left of the line to the waypoint. The anchor alarm
sounds a warning when you drift outside of a preset radius. Again, using