ix
1st numeral: Against ingress of solid foreign objects (0 – 6)
2nd numeral: Against ingress of water with harmful effects (0 - 8).
(IPX4: splash-proof, IPX6: waterproof)
IP address ID number assigned to equipment on a constructed network.
LAN Abbreviation of Local Area Network. A network is constructed for
transmitting and receiving data.
LCD Unit (LCD) Liquid Crystal Display Unit.
Log Pulse Contact output signal, output in 1 pulse per nm.
Expressed in units of "p/nm". mi/h Unit of ship speed.
Loran time difference
display Method for expressing the present position with loran system time
difference. (The method is for operators who have a background in
loran navigation.)
MAC address ID number assigned to LAN IC
Multi GNSS Positioning using multiple satellite systems at the same time.
Master reset This function changes the settings of the display unit and GPS
sensor back to the factory settings. The function clears all the
data.
Multipath Wave Waves received from multiple directions due to reflection or
refraction of an initial wave by obstacles.
Mutual monitoring mode When two navigators are installed, they monitor their position fixing
status each other by using this function.
NMEA0183 (NMEA) Abbreviation of National Marine Electrical Association 0183.
International standard for naval equipment transmission
established by the National Marine Electrical Association.
QZSS QZSS is a Quasi-zenith satellite system that is managed by Japan
and complements GPS.
Positioning Use of GPS or DGPS receiving functions to determine the current
position of a ship.
RAIM Accuracy Standard
(RAIM) Abbreviation of Receiver Autonomous Integrity Monitoring. This
system automatically detects failed satellites and deselects their
positioning data from calculations. Including data from failed
satellites will result in a decrease in positioning accuracy; the RAIM
accuracy standard indicates the accuracy degradation base for
removal of failed satellites from positioning calculations.
Ranging Positioning with the use of SBAS satellite in addition to GPS
satellite.
Reception Level GPS signal reception level.
Route plan Plan registered with multiple waypoints in the navigation order
RS-232C Serial data transmission standard. It is unbalanced, and hence can
only be used for short distance transmission.
RS-422 Balanced serial transmission standard.
SBAS Abbreviation of Satellite Based Augmentation System. It is a
blanket term for wide scale GPS support systems using fixed
position satellites which send GPS error correction data over a wide
range.
SBAS Search SBAS reception mode (manual / automatic).
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