Memorex RX 1 Smart Manual de instalación descargar pdf (Pagina 242)

Simrad MX500 | 241

Frequency Modulation – The method by which a signal

offsets the frequency in order to modulate it on a data

link.

FORCE HEALTHY

A feature of the navigator that permits the user to over-

ride the data flag in the almanac that tells the navigator

that the quality of the data from a satellite is inadequate

for navigation. This feature should be used only with the

greatest care.

FORCE UNHEALTHY

A feature of the navigator that permits the operator to

inhibit a satellite position update even though the quality

of the data from that satellite apparently is acceptable.

FUNCTION

A specific operational capability of the navigator.

FUNCTION KEY

A key on the front panel of the navigator that selects a

specific function.

GEODETIC

Associated with the science of Geodesy, which includes

the means of determining absolute position with uniform

accuracy at all points on the Earth’s surface.

GEOGRAPHIC COORDINATES

Angular displacements along parallels of latitude and me-

ridians of longitude on an ellipsoidal surface. Ellipsoidal

coordinates.

GEOID

The Earth’s surface with all topographical undulations

removed (equipotential surface) so that all points on the

surface approximate mean sea level.

GEOIDAL HEIGHT

Deviations of the geoid above and below the ellipsoid due

to non-uniformity of the Earth’s mass. Geoidal height is

positive when the deviation is outward from the central

volume of the ellipsoid, and negative when it is inward.

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Memorex RX 1 Smart Manual de instalación Pagina 242