NorthStar Navigation NorthStar 8000i - Manual (Page 195)

Northstar 8000i Operation Manual 195
42.11 Radar shows false echoes and/or background noise
False echoes and/or background noise can be produced if the radar sensitivity is
too high.
Try using the Auto setting for the radar gain mode; (see "Change the radar gain
mode" page 131).
If this doesn't work, or if the radar gain mode is already set to Auto, use the radar
gain setting to reduce the radar sensitivity, (see "Change the radar gain setting"
page 132).
42.12 Charts won't display
If the 8000i master unit is turned Off, no other display units can access the chart
collections.
Check that the master unit is turned On. If so, check that your chart collection
licenses have not expired.
42.13 Waypoints and/or Routes aren’t shown on all
the display units.
Usually, the active waypoints and routes are shown on the Chart screens of all the
display units. If they’re not, just select Waypoints Routes and Tracks to
refresh the Chart screens.
42.14 3D Chart won't display photo overlays
Check that the Photo Overlay button in the 3D Chart screen control panel is
toggled On.
If the Photo Overlay is On, but the photo overlays are not shown, try zooming in
closer to the land.
42.15 3D Chart photo overlays switch off
Overlaying the satellite photos or aerial photos can slow the response time of the
3D Chart, particularly if you are viewing a large land area from a low angle.
Therefore, when you pan the 3D Chart screen, or change the azimuth or camera
angle, the photo overlays are switched off automatically to improve the response
time of the display. Just select the Photo Overlay button again to re-display
the photo overlays.
You can avoid having the photo overlays switch off automatically by displaying the
Chart screen and the 3D Chart screen and then synchronizing them.