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Glossary
This section defines technical terms and abbreviations used in
this manual.
AMU A Trimble term: Arbitrary Measurement Unit. The AMU
is defined as: 20
log10
(AMU) +22.8 = CNO
where CNO = C/N
0
, that is, the carrier-to-noise ratio.
ASIC Application-specific integrated circuit.
ASCII American Standards Committee for Information
Interchange. This organization established a hexadecimal-
to-printed character translation table used by all
computers to store character information.
API Application Programming Interface.
BBRAM Battery Backed-up RAM. See Start / Stop GPS, page 20
and Load BBRAM on start, page 26.
CNO Carrier-to-noise ratio. See AMU.
Differential Global
Positioning System
(DGPS)
GPS positions can be differentially corrected (DGPS) in
real time (using radio telemetry) or through
postprocessing (no radio telemetry required).