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Glossary
Operator's Manual
CLICK (KEYBOARD)
The audible tone generated when a key is activated.
CLOCK
A precisely-spaced, stable train ofpulses generated within an elec-
tronic system to synchronize the timing ofdigital operations within
the system.
CLOCK OFFSET
. r:
Version 7.5
The differences between the times at the CDU/processor tracking a
satellite, the satellite itself, and GPs.,system time.
C/ACODE
See COARSE/ACQUISITION CODE
COARSE/ACQUISITION (C/A) CODE
The NAVSTAR satellite signal that may be accessed by civilian
members of the user community.
COEFFICIENT OF EARTH FLATTENING
The value F that quantitatively describes by how much the earth's
ellipsoid semimajor axis (A) is shorter than the semiminor axis (B).
F
=
(A-B)/A.
COG
See COURSE OVER GROUND
COMPASS BIAS
Angle ofmisalignment between the steering compass and the keel
line of the vessel or long axis of the vehicle.
COMPASS DEVIATION
See DEVIATION.
COMPASS HEADING
Compass reading before correction for deviation and variation.
COMPASS MAGNETIC VARIATION
See MAGNETIC VARIATION.
799
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