Thales Navigation Meridian Series User Manual

Page 70

Magellan Meridian GPS Receiver

Reference

All of the Alarm options are set in the same way. The instructions below
apply to all of the Alarm settings. When the beeper is turned on for alarms
(see Setup - Turning the Beeper On/Off ) an audible beep will be sounded
for the alarm. A visual alert is displayed for the alarm whether the beeper is
turned on or off.

From

Any

Screen

Highlight

Alarms/Msg

Highlight

Alarm

Field

Select

Alarm

Distance

ENTER

Setting the Arrival Alarm — The arrival alarm alerts you that you have

arrived at the destination of your GOTO or to the destination of any
leg in a route you are navigating on. This option allows you to set the
distance from the destination that the alarm will begin to sound.

Setting the Anchor Alarm — The anchor alarm will sound when you have

drifted from your anchor point at a distance you set. An example of its
use would be as you set anchor you turn on the anchor alarm to beep at
a given distance. With the Meridian still operating and computing fixes
you can then go fishing or other activities knowing that if you drift more
than the distance you selected, the Meridian will alert you.

Note: DoD applied Selective Availability errors can considerably impact the
accuracy of the drift distance.

Setting the XTE Alarm — XTE or cross track errors happen when you are

off course for the route you are navigating on. The distance set in the
alarm is the distance left or right of the heading you are supposed to be
travelling on.

Setting the GPS Fix Alarm — This turns on or off the alarm that can

sound whenever the Meridian has lost its ability to compute position
fixes due to loss of signal from the satellites. This is handy in that it
alerts you that you may need to move to an area that has a clearer view
of the sky.