MagVar 2020 对比 Ventus PRO 的使用情况和统计数据

MagVar 2020

MagVar 2020 is targeted towards anyone interested in navigation. This includes, pilots of aircraft, captains of sea going vessels, cartographers, engineers and surveyors. Anyone who uses maps and a compass will find the declination calculation (also referred to magnetic variation) very useful. (Declination is the difference between true and magnetic north and used when plotting a course on a map.) MagVar 2020 calculates the magnetic flux density for any location on the Earth and then uses this data to calculate magnetic variation. The model is accurate for dates ranging from January 1, 2020 up through December 31, 2024. Using the model, the app calculates declination and inclination. As the user pans the map, the magnetic variation is calculated and graphically shown as a map overlay.

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Ventus PRO

Ventus PRO, the first and only system that gives you control of key Expedition Navigation Software features from a remote device. Our new PRO version not only has all the features of the original Ventus Navigator that lets you view all the data that Expedition puts out in the palm of your hand but also gives you the ability to control the key functions of Expedition remotely. New Features Include: * - Uses the Expedition Timer 15, 10,5, or 3 minute timers * - Set the ends of the Start Line * - View the Active Mark in your current course * - Select Active course from your course list * - Select the mark you want to be Active in the current course * - Ping new mark by range and bearing to create a new active course, or to insert new mark into an existing course * - MOB Button on each page