System Description

SystemDescriptionandInstallationManualforRangeFinder ICD1000001
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MOPS:MinimumOperationalPerformanceSpecification.
MSB:Mostsignificantbit.
MSN:Mostsignificantnibble(4bits).
MTL:MinimumThreshold.
Net Mask: Anet maskis a 32bitmaskused to divide an IP address intosubnetsand specify
thenetwork'savailablehosts.Inanetmask,twobitsarealwaysautomaticallya ssigned. 
NMEA 0183 message (using GPRMC): The National Marine Electronics Association (NMEA) defines a
messagingprotocolcalled0183.GPRMCisaspecificmessagetypewithinthatprotocol.
Nonvolatilememory:Datastoredinnonvolatilememoryisnotlostwhenpowertothedeviceisremoved
orinterrupted.
SOG:Speedoverground. The speed of a vessel relative to the surface of the earth.
Squawk code: The ATC system for a given geographic area assigns a unique fourdigit number to each
RangeFinder equippedaircraft in that area. Thisnumberiscalleda squawkcode,and itistransmitted by
theRangeFinderonlywheninterrogatedbyATC
toaidinaircraftidentification.
TAS:Trueairspeed.Thespeedoftheaircraftrelativetotheairmassinwhichitisflying.
TISB: Traffic Information Services Broadcast. TISB complements the operation of ADSB by providing
groundtoairbroadcastofradarderivedaircraftsurveillancedata,
includingfromaircraftnotequippedfor
1090MHzADSB.
UTC: Univers al Time Coordinated.A coordinated time scale, maintained by the Bureau International des
PoidsetMesures(BIPM).FormerlycalledGreenwichMeanTime(GMT).