How GPS 2
All GPS can be stored in memory several Waypoints, which can delete, edit, and identified by alpha numeric characters. Some GPS allow you to group a sequence of waypoints representing a route, this route is called. DISTANCE: entering the coordinates of two points, the distance function of the GPS information to separate the two and the direction in degrees to be followed from the beginning to the marked target. The same can be done with two waypoints. NAVIGATION: Entering a waypoint as a destination and another as a source, this function continuously updated to provide the following information: Contact-Rumbo (Bearing), heading in degrees that we must continue from the current position to reach the destination. “Current Heading (Heading track) Heading in degrees that we at that time. A GPS is an accurate compass is not affected by magnetic fields and metals from vehicles. -Distance: The GPS tells us the distance remaining in a straight line reach our destination. Cross-Error: (CDI, XTE) The GPS tells us of the transverse distance ideal path in a straight line from start to destination. -Speed (Speed) The rate at which the GPS is moving. -Estimated time of arrival (ETA, TTG) Indicates the estimated time of arrival at destination in a straight line at constant speed (for obvious reasons only applicable to aviation and shipping.) -Estimated travel time: (TEE) Estimated travel time to the speed provided by the GPS. SET UP: The set function is used to set up the GPS and control thus giving the information, eg. if you want data displayed in miles or km, in feet or meters. etc. as the coordinate system that can use the system Lat / Lon, UTM, and the different GRID. -Datum (map datum) represents a geometrical system of land. The DATUM subfunction to select among dif. systems that are based on maps and charts. North-Reference: (North Reference) lets you choose the model of north (magnetic, indicated by the compass) or true (true) that the GPS take to give the information on current course and contact. “Distance Units: (Dist. units) This sub-function allows selected length units of information (km, miles and nautical miles) Elevation-units: (Elev. units) This allows a choice between meter and feet. -Time: (Time) Select the time format, you can choose between UT (universal time) and GMT. Some models also bring local time.