Radar Mode And Orientation - Lighthouse a65 Installation And Operation Instructions Manual

Using the radar range rings
Radar range rings enable you to measure the
distance between two points on the radar display.
Use the range rings to gauge the approximate
distances between points. Range rings are
concentric circles displayed on the screen and
centred from your vessel at pre-set distances. The
number and spacing of the rings changes as you
range in and out.
Examples:
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Range — 1/4 nm Range — 3/4 nm
Range Rings — Range Rings —
760ft apart 1/4 nm apart
Enabling and disabling radar range rings
From the radar application:
1. Select MENU.
2. Select Presentation.
3. Select Range Rings.
Selecting Range rings will switch the range rings
On and Off.
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20.7 Radar mode and orientation

Radar orientation modes
The radar can operate in a number of orientation
modes to suit different types of navigation.
The orientation of the radar refers to the relationship
between the radar and the direction that you are
travelling in. There are three orientation modes to
choose from:
• Head-Up
• North-Up
• Course-Up
These orientation modes are used in conjunction
D12215-1 D12216-1
with motion mode to control how your boat and radar
Range — 1 1/2 nm
relate to one another and how they are displayed
Range Rings —
on screen. Any changes that you make to the
1/4 nm apart
orientation of the radar are retained when you switch
off your multifunction display.
Head-Up
This is the default mode for the radar application.
North-Up
1
Item
1
2
1
2
D12208-1
Description
Ship's Heading Marker
(SHM) (indicating the vessel's
current heading is upwards).
As the vessel's heading
changes:
• SHM is fixed upwards
• Radar picture rotates
accordingly
2
D12209-1
a Series / c Series / e Series