Section 14 - Abbreviations And Initialisms - NorthStar 8700 Technical Reference Manual

Gps position sensor, beacon sensors, gps/dgps position sensors
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Section 14 - Abbreviations and initialisms

BDM
CMC
dBm
EEPROM
FLL
HDOP
L1
LSB
MF
MSB
MSK
NMEA
NVM
OEM
PLL
PRN
RTCM
SC-104
SNR
TDOP
TTFF
UTC
VDOP
WGS–84
05/01/97 REV H
Beacon DeModulator (receiver for differential correction signals)
Canadian Marconi Company
deciBel relative to 1 milliWatt
Electrically Erasable Programmable Read- Only Memory
Frequency-locked loop
Horizontal Dilution of Precision
The frequency band used by the GPS sensor
Least Significant Bit
Medium Frequency band
Most Significant Bit
Minimum Shift Keying (type of modulation used by the BDM)
National Marine Electronics Association. The industry group that has
established standards for exchanging data between electronic navigation
equipment. NMEA 0183 is the current standard, which specifies the for-
mat for "sentences" containing specific types of data.
Non-Volatile Memory
Original Equipment Manufacturer
Phase-locked loop
A satellite's two-digit Pseudo Random Number,
HUQPHQW
.
Radio Technical Commission for Maritime Services
The specification for the differential corrections format.
The estimated Signal-to-Noise Ratio of the broadcast signal, an approxi-
mate indication of signal quality; the larger SNRs indicate a better signal.
Antenna and grounding adjustments can be optimized while monitoring
the reported SNR of a known DGPS radio beacon.
Time Dilution of Precision
Time-To-First Fix
Universal Coordinated Time
Vertical Dilution of Precision
World Geodetic System – 1984
Section 14 - Abbreviations and initialisms
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PAGE 69

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