System Description

SystemDescriptionandInstallationManualforRangeFinder ICD1000001
©SagetechCorporation2018ConfidentialProprietaryExportControlled Page14of130
5.3 ConnecttoGPSInterface
GPSdatashouldbeprovidedtotheRangeFinder fromtheaircraftsystemintegratorinoneoftwoways:
a) GPS serial data stream on the 51pin MicroD connector. The data format is either NMEA or a
proprietaryformatfromaNexNavMiniGPS(aTSOC145ccomplia ntsolution).
b) HostComputer GPS data is incorporated into the command andcontrol protocol packets on the 51
pinserialinterface.(SeeSection7.1.)
Note:Sagetech recommends using the external Accord Technology NexN av Mini receiver. It is the smallest
TSOC145ccompliantreceiverSagetechhasidentified.
5.4 InstallingAntenna
Figure53ConnectortoTopBottomAntenna
One bottomlocated an tenna should be connected to the rightside female SMA con nector shown in Figure
53. Whenever power is supplied to the MXR, a 50ohm load should be provided to both SMA con nect ions.
Ensure that the antenna selected provide a 50ohm termination for the MXR. Install
a 50ohm termination
ratedfor5WminimumintheunusedSMAFemaleTopAntennaConnector.
TheantennausedbyRangeFindershouldbemountedoutsideonthebottomsideoftheaircraftaccordingto
themanufacturer’sinstallationinstructi o ns, withadditionalguidanceprovidedbelowandinTable54:
The Range Finder should have its own antenna. An exception to this rule is use of a highquality
diplexerthatenablesantennasharingbetweenaRangeFinderandcertainADSBequipment.Further
guidance on diplexer use can be found in RTCA documents DO282B and DO260B, the minimum
operationalperformancestandardsforUATand1090MHzADSB,respectively.
Minimize the distance between the Range Finder and its antenna. The antenna cable must have no
morethan2dBofsignallossfromtheRangeFindertotheantenna.
Take care to locate the antenna away from
any objects that may disrupt the ground plane for the
antennas,suchasdoorsandlandinggear.
Donotplacetheantennaclosetoengineexhaust.