Glossary
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Glossary
B
Base Station – A GNSS receiver set up over a known point, which is used to derive correction information for
nearby Rover (mobile) GNSS receivers.
BeiDou– BeiDou Navigation Satellite System maintained and operated by China.
Bluetooth
®
– Often used in place of cables, Bluetooth is open wireless technology for exchanging data over short
distances from fixed and mobile devices.
G
GALILEO – The satellite system currently being maintained and operated by the European Union (EU) and
European Space Agency (ESA).
GGD – GPS + GLONASS Dual Frequency signal tracking.
GLONASS – The Global Navigation Satellite System maintained and operated by the Russian Federation.
GNSS – Global Navigation Satellite Systems, such as GPS and GLONASS.
GPS – The Global Positioning System maintained and operated by the United States Department of Defense.
L
L1 and L2– For the ranging codes and navigation message to travel from the satellite to the receiver, they must
be modulated onto a carrier frequency. In the case of the GPS design, two frequencies are utilized: one at 1575.42
MHz (10.23 MHz x 154) called L1 and the other at 1227.60 MHz (10.23 MHz x 120), called L2.
Light-Emitting Diode (LED) – Used as indicator lights on the receiver to display the status of the receiver’s
components and control receiver operations.
M
MAGNET
®
Field – Data controller software that is part of the MAGNET software system.
MAGNET
®
Office – Post-processing and CAD solution software for surveying and grade application. It is part of
the MAGNET
®
software system.
MINTER – The receiver’s Minimum INTERface used to display and control data input and output.
N
Network RTK – Collects satellite observations from the reference stations within the network and sends RTK
corrections to the Rover.
O
Option Authorization File (OAF) – This enables specific features for scalable performance of Sokkia GNSS
receivers.
P
Phase Center of Antenna – The point from which the electromagnetic radiation spreads spherically outward,
with the phase of the signal being equal at any point on the sphere.