Video In Configuration - Simrad NSS evo2 series Installation Manual

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Adjust bearing alignment
This is to align the heading marker on the screen with the center line of the vessel, this will
compensate for any slight misalignment of the scanner during installation. Any inaccuracy
will be evident when using MARPA or chart overlay.
Point the boat to be perpendicular to the very end of a breakwater or peninsula. Adjust the
bearing alignment setting, so that the heading marker and land mass intersect.
Adjust antenna height
Set the radar scanner height relative to the water surface. The Radar uses this value to
calculate the correct STC settings.
Adjust local interference reject
Interference from some onboard sources can interfere with the Broadband radar. One
symptom of this could be a large target on the screen that remains in the same relative
bearing even if the vessel changes direction. Choose from Local interference rejection LOW,
MED or HIGH. Default is LOW.
Sidelobe suppression
Occasionally false target returns can occur adjacent to strong target returns such as large
ships or container ports. This occurs because not all of the transmitted radar energy can be
focused into a single beam by the radar antenna, a small amount energy is transmitted in
other directions. This energy is referred to as sidelobe energy and occurs in all radar systems.
The returns caused by sidelobes tend to appear as arcs.
¼ Note:
This control should only be adjusted by experienced radar users. Target loss in harbour
environments may occur if this control is not adjusted correctly.
When the radar is mounted where there are metallic objects near the radar, sidelobe energy
increases because the beam focus is degraded. The increased sidelobe returns can be
eliminated using the Sidelobe Suppression control in the Radar installation menu.
By default this control is set to Auto and normally should not need to be adjusted. However
if there is significant metallic clutter around the radar, sidelobe suppression may need to be
increased. The control should be adjusted as follows:
•
Set Radar range to between 1/2 nm to 1 nm and Sidelobe Suppression to Auto.
•
Take the vessel to a location where sidelobe returns are likely to be seen. Typically this would
be near a large ship, container port, or metal bridge.
•
Traverse the area until the strongest sidelobe returns are seen.
•
Change Auto sidelobe suppression to OFF then select and adjust the sidelobe suppression
control until the sidelobe returns are just eliminated. You may need to monitor 5-10 radar
sweeps to be sure they have been eliminated.
•
Traverse the area again and readjust if sidelobe returns still occur.
•
Exit the installation menu.
Restore radar to Factory Default
This can be used to revert all user adjustments.

Video In configuration

Press the menu key when on the video page or panel to open the setup
dialogue.
Enable PAL or NTSC depending on the video ouput standard of the selected
camera.
You can optimize the video display by adjusting the video image settings
(brightness, saturation, etc.). The settings are applied individually for each
video source.
Mirror image may be applied where the camera is providing a rear view, and
the user wishes to see objects as they would appear in a vehicle rearview
mirror, ie, on the same side as they actually are.
Software setup | NSS evo2 Installation Manual