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Radar view options

View menu options vary depending on your radar antenna.

VelocityTrack

This option is available for radar antennas that have Doppler coloring functionality.

Note: When VelocityTrack is enabled antenna rotation speed may be reduced.

Note: When operating the radar in Dual range mode with one of the ranges set to 36

nm or more, increased VelocityTrack coloring noise over land areas may be seen.

Doppler coloring is a navigation aid to distinguish moving targets approaching or diverging

from your vessel. The radar indicates if a target is approaching or diverging from your vessel

when both these conditions are true:

• The target's relative speed is greater than the VelocityTrack speed threshold.

• The target is not geo-stationary (e.g. land or a marker buoy).

The following options are available:

• Off - turns off Doppler coloring

• Normal - approaching targets and diverging targets are colored.

• Approaching targets - only approaching targets are colored

The color of approaching and diverging targets depends on the palette used:

• Diverging targets are blue colored on all radar image palettes.

• Approaching target colors on radar image palettes:

Black/Red palette - Yellow

- White/Red palette - Yellow

- Black/Green palette - Red

- Black/Yellow palette - Red

VelocityTrack settings

Use this dialog to set speed thresholds of targets to be colored.

The speed threshold can be defined to apply for the radar source of the selected radar panel

only, or to all radar sources connected to the system. The setting is only applied to those

radars powered and connected at the time the setting is made. If the all radar sources option

is selected, newly connected radars will use the specified values automatically.

VelocityTrack examples

Approaching and diverging moving targets can be indicated as neutral (not colored) in some

circumstances. The navigator should be aware of these situations to safely use the

VelocityTrack feature as an aid for collision avoidance.

Examples of how VelocityTrack behaves in 2 navigation scenarios is illustrated below. The

illustrations show a target (A) crossing own vessel's (B) path.

Radar | NSO evo3S MPU Operator Manual

Simrad NSO evo3S MPU User Manual

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