Setting A Guard Zone Around Your Vessel - Simrad NSO Operation Manual

Fast scan (Broadband Radar™ only)
Increases the speed of the radar scanner when the range is set to 2 nm
or less. This option gives faster updates on target movements within this
range.
STC curve (Broadband Radar™ only)
The STC (Sensitivity Time Control) controls the sensitivity of the radar
signal close to your vessel. The STC curve option has 3 settings. Your
selection should be based on the current sea conditions.
Radar overlay
You can overlay the Radar image on the Chart. This can help you to easily interpret the
radar image by correlating the radar targets with charted objects.
When the radar overlay is selected, basic radar operational functions are available from
the Chart page's context menu.
More information on Radar Overlay is available in the Chart section of this manual.

Setting a guard zone around your vessel

A guard zone is a region (either circular or a sector) that you can define on the radar
image. You can also define if an alarm is activated when a radar target enters or exits
the zone.
'H¿QLQJ D FLUFXODU ]RQH
1 Activate one of the guard zones
2 Select circular shape
-
A circular guard zone will now be positioned on the radar
image
3 Select the menu option used for adjusting the zone
-
The menu will be removed from the display, and the rotary
symbol for range will be enlarged
4 Use the rotary knob to adjust the
range and depth.
-
You switch between the range and
depth settings by pressing the rotary
knob
Press the Menu key to save the guard
5
zone settings
Using radar | 33