Abbreviation

Term

CAN

controller area network

DGPS

differential global positioning system

GIS

geographical information systems

GNSS

global navigation satellite system

GPS

global positioning systems

GUI

graphical user interface

HDOP

horizontal dilution of precision

IP

ingress protection

ISO

international organization for standardization

NMEA

national marine electronics association

P2P

peer to peer

RF

radio frequency

RTK

real-time kinematic

SF1

single-frequency signal used by John Deere DGPS

SF2

dual-frequency signal used by John Deere DGPS

TDOP

time dilution of precision

WAAS

wide area augmentation

PDOP

position dilution of precision

PRN number

pseudo random noise number

VDOP

vertical dilution of precision

7D

seven dimensions of precision

L1

1575.42 MHz satellite frequency

L2

1227.60 MHz satellite frequency