Memorex RX 1 Smart Installationshandbuch PDF herunterladen (Seite 240)

Simrad MX500 | 239

DEFAULT

A condition that the navigator assumes automatically if

no other condition is initiated by the operator.

DEVIATION (COMPASS)

Magnetic compass reading error due to local magnetic

field influences.

DGPS

See DIFFERENTIAL GPS.

DIFFERENTIAL GPS (DGPS)

A method of refining GPS position solution accuracy by

modifying the locally computed position solution with

correction signals from an external reference GPS CDU

(monitor).

DILUTION OF PRECISION (DOP)

A figure of merit for the quality of GPS-derived position

and clock bias estimates, based on the geometry of the

selected satellite constellation. The smaller the DOP, the

less the magnification of the range measurement error

into position and clock bias errors. Generally, the more

spread out the satellites, the lower the DOP. The most

common DOPs are as follows:

HDOP - Horizontal dilution of precision.

GDOP - Geometric dilution of precision.

PDOP - Position dilution of precision.

VDOP - Vertical dilution of precision.

EARTH FLATTENING COEFFICIENT

See COEFFICIENT OF EARTH FLATTENING.

ECDIS (Electronic Chart Display and Information System)

EDIT

To modify existing display data via the keyboard.

EDIT MODE

The state in the navigator where it is possible to enter

or change data. EDIT MODE is accessed by pressing the

E-key. Press the E-key once more to ENTER the data into

the memory and leave EDIT MODE.

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Memorex RX 1 Smart Installationshandbuch Seite 240