Projected course

The 657 can estimate the course after a given time, based on the current speed and heading (see

 

section 3-4). The options are 2 minutes, 10 minutes, 30 minutes, 1 hour, 2 hours or Off

 

 

CDI scale

See Appendix C. The options are 0.05, 0.1, 0.2, 0.5, 1.0, 2.0, 4.0 and 10.0 distance units

 

 

Lat/lon grid

Displays a latitude and longitude grid

 

 

Boundaries

Displays boundaries around areas where more detailed chart coverage is available:

 

Auto shows the next four detail levels; On shows all

Text/icon size

Select the size of chart text and icons

 

 

Water submenu

 

 

 

Water features

Displays marine sediment labels (for example, M shows areas of mud) and tide station icons

 

 

Bathymetrics

Displays underwater depth contours between Bath & sndgs min and max

Spot soundings

Displays depth soundings between Bath & sndgs min and max

 

 

Bath & sndgs min

The minimum depth for Bathymetrics and Spot soundings

Bath & sndgs max

The maximum depth for Bathymetrics and Spot soundings

Tidal flow

Displays dynamic tide flows: arrows on a chart showing the present tide stream and

 

orientation (requires a GPS fix and an NT-MAX card)

 

 

Land submenu

 

 

 

Land features

Displays land features, for example regions, rivers, roads, railways, airports

 

 

Land elevation

Displays land contours, shaded like depths (requires an NT Max card)

 

 

 

Other submenu

 

 

 

Waypoints

Displays waypoints: Hide all only displays waypoints on any selected route; Selected

 

displays waypoints with their display option set to Icon or I+N (Icon and Name) (see section 5)

Names

Displays place names

 

 

Lights

Light House display options: Off hides all light indicators (the icon still shows); No sectors hides

 

sectors; On shows sectors; Animated activates light animation.

 

Note: with light animation enabled sectors are not visible, animation only operates in single

 

chart view or in the top chart of chart + chart

 

 

Nav-aids

Displays signals (fog, radar, radio stations) and bouys. Int and US select the icon format;

 

Smpl draws simpler icons

Attention areas

Displays attention area boundaries and information icons ; attention areas are important

 

 

areas, such as restricted anchorages or shallow areas

 

 

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Northstar Explorer 657 Installation and Operation Manual

Page 64
Image 64
NorthStar Navigation EXPLORER 657 operation manual Lat/lon grid