Memorex RX 1 Smart Manual de instalación descargar pdf (Pagina 244)

Simrad MX500 | 243

GREAT CIRCLE NAVIGATION

Navigation based on a Great Circle calculation. The ad-

vantage of Great Circle navigation is that it brings you

the shortest way through the active route. The disad-

vantage is that a Great Circle track may differ from the

straight rhumb line that is easily drawn on a Mercator

projected chart. Great Circle navigation is recommended

for ocean voyages only. The advantage increases by

higher latitude (north or south).

HDOP (Horizontal Dilution of Precision)

An indicator of the two dimensional accuracy in position

(latitude and longitude). See DILUTION OF PRECISION.

HEADING

The direction in which the vessel is pointed, expressed

as angular distance from north clockwise through 360

degrees. HEADING should not be confused with course.

The HEADING is constantly changing as the vessel yaws

back and forth across the course due to the effects of

sea, wind, and steering error.

HEADING-TO-STEER

The angle of track required to steer the vessel or vehicle

from its present position to its planned destination point.

This angle differs from heading, which is its present

angle of track with respect to true north.

HEALTH

See SATELLITE HEALTH.

IEC

International Electro-technical Commission.

IMO

International Maritime Organization

INCLINED PLANE

A geometric surface that is tilted with respect to another

arbitrary reference plane (for example, the Earth’s equa-

torial plane).

INITIALIZE

To enter constants into the navigator to enable it to start

positioning and/or navigating accurately.

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Memorex RX 1 Smart Manual de instalación Pagina 244