Leica apMK12, Operation & Installation Manual

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184 Version 1.5
Operation & Installation Manual Glossary
Transmission rate unit of measurement for binary coded data (bit
per second).
BEARING
The direction of one terrestrial point from another, expressed as
angular distance from North, clockwise through 360°.
BIT
Short form of Binary Digit. The smallest element of data in a bi-
nary-coded value.
C ENTRAL MERIDIAN
The meridian (see MERIDIAN) that passes through the center of
the referenced grid (Zero longitude).
CHARACTER STRING
Contiguous characters (other than spaces) in a message.
CHECKSUM
The value sent with a binary-coded message to be checked at the
receiving end to verify the integrity of the message.
CLICK (KEYBOARD)
The audible tone generated when a key is activated.
CLOCK
A precisely-spaced, stable train of pulses generated within an elec-
tronic system to synchronize the timing of digital operations within
the system.
CLOCK OFFSET
The differences between the times at the CDU/processor tracking
a satellite, the satellite itself, and GPS system time.
C/A CODE
See COARSE/ACQUISITION CODE
COARSE/ACQUISITION (C/A) CODE
The NAVSTAR satellite signal that may be accessed by civilian
members of the user community.
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