Using Radar To Track Targets And Avoid Collisions - Raymarine E90W User Reference Handbook

Enabling and disabling radar range rings
In the radar application:
1. Press the MENU button.
2. Select Radar Setup.
3. Use the Range Rings menu option to switch Radar Rings ON
or OFF.
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9.11 Using radar to track targets and
avoid collisions
There are a number of radar functions to help you track targets and
avoid collisions, including Guard Zones, MARPA, and AIS.
With a radar connected to your multifunction display, you can:
• Assess how far away a target is and its bearing (VRMs/EBLs).
• Set an alarm to trigger when a target is within a specified zone
(Guard Zones).
• Display detailed information on tracked targets (MARPA).
• Display the identity of other vessels and if broadcasted, their
voyage information (AIS).
• Display the range and bearing of a target.
Setting up a radar guard zone
In the radar application:
1. Press the TARGET TRACKING softkey.
2. Press the MONITOR IN ZONES softkey.
3. Press the ZONE 1 or ZONE 2 softkey (as appropriate) until the
ON or OFF option is selected.
4. Press the SET UP ZONE 1 or SET UP ZONE 2 softkey, as
appropriate.
5. Press the ZONE SHAPE softkey until the SECTOR or CIRCLE
option is selected, as required.
6. Use the softkeys and the rotary control to specify the guard
zone, as appropriate.
Adjusting guard zone sensitivity
1. Press the MENU button.
2. Select Alarm Setup.
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