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 AccuMap 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 the .1 mile as an example, if you’re anchored and your boat moves more than .1 of a mile, the alarm will sound.
To use any of these alarms, first press the MENU key, then select the “GPS ALARMS” menu. A screen similar to the one shown at the top of the next page appears. Highlight the desired alarm, then press the right arrow key to turn it on.
To adjust the alarm’s distance, move the black box to the alarm’s “DIS” menu item, then press the right or left arrow keys to increase or decrease the alarm’s distance.
Press the EXIT key to erase this menu.
Important Alarm Notes:
Anchor Alarm - Since civilian users don’t receive the accuracy given to military users, the anchor alarm may sound even when you’re sitting still. This typically happens when using small (less than .05 mile) anchor alarm ranges. If you have a DGPS beacon receiver connected to the AccuMap 12, smaller ranges may be usable.
Arrival Alarm - If you set the arrival alarm’s distance to zero (0), and you run a route (see the routes section), the AccuMap 12 may not show navi- gation data to the next waypoint, once you arrive at the first one. If you use the routes feature, never set the arrival alarm to zero.
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