Raymarine LIGHTHOUSE 3, Advanced Operation Instructions

Page: 264 / 450

Dual range limitations:
• Dual range cannot be enabled when Radar targets are being tracked (clear the target list and
try again).
• When Dual range is enabled Radar target tracking is disabled.
• When Dual range is enabled Automatic Radar target acquisition is disabled.
• In Dual range the maximum rotation speed is 24rpm.
• When using a SuperHD Radar Antenna boost and Power boost controls are only applied to the
Long range channel.Open Array Radar scanners running version 1.xx or 2.xx software will have
the Short range channel’s maximum range restricted to 3 nm.
• When Dual range is enabled on a Radar scanner running version 1.xx or 2.xx software the
Expansion control will be disabled.
Timed Radar transmission
To help conserve power you can configure your Radar to only transmit periodically.
From the Radar menu:
1. Select the
Settings icon.
The settings page is displayed.
2. Switch on Time Transmit: using the toggle switch.
3. Select Standby: and choose a time interval.
4. Select Transmit: and choose the number of rotations you want the Radar to perform.
The Radar will transmit for the specified number of rotations and then will switch to Standby for the
specified time interval, the sequence will repeat until Timed Transmit is switched off.
The Timed transmit will revert to Off after a power cycle.
Setting open array antenna size
When connected to an Open Array Radar Scanner you can configure the Antenna size . Setting the
antenna size can help when setting a Parking offset .
From the Radar app:
1. Select
Menu > Settings > Transmission .
2. Select the correct size for your Radar’s antenna from the Antenna size option.
Bearing alignment
The Radar bearing alignment ensures that Radar objects appear at the correct bearing relative to
your vessel’s bow. You should check the bearing alignment for any new installation.
Checking alignment
Align the bow with a stationary object between 0.25 and 2 NM away.
Reduce the gain to make the target as small as possible on the screen.
Note the position of the object on the Radar screen. If the target is not under the ship’s heading
marker (SHM), then bearing alignment adjustment is required.
Adjusting alignment
Adjust the Bearing alignment setting until the target object appears under the SHM.
Bearing alignment setting can be accessed from the Installation tab: Menu > Installation > Bearing
alignment .
Note: Heading (HDG) is displayed in the Radar application. Please be aware that bearing alignment
refers to the relative bearing of targets to the vessel's bow using visual checks / traditional means.
12.5 Radar modes
The Radar app provides preset modes that can be used to quickly achieve the best picture
depending on your current situation. Only Radar modes supported by your Radar scanner are shown.
To change Radar mode select the required mode from the Radar app menu.
264