28. APPENDIX: TERMS

ALT (Altitude) – Shows the Altitude of the vessel.

APP Wind DIR SPD (Apparent Wind Direction) – Shows the Apparent Wind Direction when a external wind instrument with NMEA is connected.

APP Wind SPD (Apparent Wind Speed) – Shows the Apparent Wind Speed when a external wind instrument with NMEA is connected.

BRG (Bearing) – The direction from your current position to a Destination point. COG (Course Over Ground) – The course your vessel is heading.

DATE – Shows the current date received by the GPS.

DEPTH – Shows the water depth when the optional FF520 50/200kHz BLACK BOX FISH FINDER or Digital Depth Sounder is connected.

DRAUGHT – Tide height value referred to Horizontal cursor.

DSC (Digital Selective Calling) – Digital Selective Calling is a semi-automated method of establishing a VHF Radio call. DSC had also been designated as part of the Global Maritime Distress and Safety System (GMDSS). It is planned that DSC will eventually replace aural watches on distress frequencies and will be used to announce routine and urgent maritime safety information broadcasts.

DST (Distance) – The distance from your current position to a Destination point. ETA – Estimated Time of Arrival

GPS Constellation – The Global Positioning System (GPS) is a space-based radio- navigation system consisting of a constellation of satellites and a network of ground stations used for monitoring and control. A minimum of 24 GPS satellites orbit the Earth at an altitude of approximately 11,000 miles providing users with accurate information on position, velocity and time anywhere in the world and in all weather conditions.

GPS2D – The GPS is receiving at least 2 valid satellites. GPS3D – The GPS is receiving at least 3 Satellites.

HDG (Heading) – Shows heading from a External Flux Gate Compass when connected.

HDOP/VDOP – Horizontal/Vertical Dilution of Precision. It is a parameter indicating the precision of the positioning system (GPS). The smaller the HDOP/VDOP value, the more accurately the position fix is provided.

HEIGHT – The current tide height referred to the vertical cursor. HIGH WATER – The maximum level of the tide height in 24 hours. LOW WATER – The minimum level of the tide height in 24 hours.

Position Request – Marine DSC VHF Function of transmitting a GPS position to another Marine DSC VHF. When GPS chartplotter is connected to STANDARD HORIZON GPS the position of another vessel is shown on the Chart page.

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CPV550