Setting The Navigation Alarms; Setting The Arrival Alarm Range; Setting The Off-Course Alarm Range - JRC JLR-7700MKII Instruction Manual

4.5.4

Setting the Navigation Alarms

The following four navigation alarms can be set with the equipment.
Arrival alarm
Off-course alarm
Anchor alarm
Boundary alarm
4.5.4.1

Setting the Arrival Alarm Range

An alarm can be activated when the vessel has approached to the destination.
Example) Operate as follows when the alarm needs to be activated at a distance of 0.10 nm from the
destination.
Press the key provided on the right hand side of the ARRIVAL, then, 0 , 1 , 0 , and ENT keys.
Memo
This setting is not required if the arrival alarm has already been set according to the instructions stated
under the item 4.5.3.3 "Setting the Arrival Alarm Range".
The alarm sound goes off when the CLR key is pressed, however the alarm display will remain turned
on either the vessel has crossed the borderline or the setting is changed to exclude the current position.
No alarm will go off if the range is set to zero nm.
The arrival alarm and anchor alarm functions can not be set simultaneously since they contradict to each
other. Setting one function will automatically cancel the other.
4.5.4.2

Setting the Off-Course Alarm Range

An alarm can be activated when the vessel has deviated from the preset course.
Example) In case it is necessary to activate the alarm when the vessel has deviated by 0.2 nm or more from
the planned course (See the figure shown below).
Press the key provided on the right hand side of the OFF-COURSE, and then the 0 , 2 ,
and ENT keys.
Starting point
Memo
The alarm sound goes off when the CLR key is pressed. However, the alarm display remains turned on
unless the vessel has returned to a position within the preset range or the set range is changed.
No alarm goes off if the range has been set to zero nm.
The off-course alarm and boundary alarm functions can not be set simultaneously since they contradict
to each other. Setting one function will automatically cancel the other.
The alarm goes off
JLR-7700 MK
Destination
Planned course
(Route)
0.2 nm
2 GPS Navigator
0 ,
61