Lowrance 3500c 操作ガイド

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Section 5: 

System & GPS Setup Options 

Alarms 

This unit has several GPS alarms. The factory default setting has all of 
these but the anchor alarm turned on. You can turn the alarms off and 
on and change their distance settings. 

You can set an arrival alarm to flash a warning message and sound a 
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 flash a 
message when you come within .1 mile of the recalled waypoint. 

The off course alarm warns you when your track drifts too far to the 
right or left of the course line to the waypoint. For example, if the 
alarm is set to .1 mile, then the alarm flashes a message if you drift .1 
of a mile or more to the right or left of the line to the waypoint. 

The anchor alarm is triggered 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 flash a message and 
sound a tone. 

 

Selecting the Alarms command on Main Menu brings up Alarm menu. 

To change alarm settings: 

1. Press 

|

|

↓ to 

|

|

. 

2. Scroll 

↓ or ↑ to select the desired category, then press 

 to check or 

clear the Enabled box. This turns the alarm on (checked) or off (un-
checked.) 

3. To change distance settings, scroll 

↓

 or 

↑

 to select the desired cate-

gory, then press 

→ |

 to activate the distance dialog box. Press 

↑ or