System Description
3.ElectricalInstallation
A.General
(1)IfthereisacommonUAVground,theIndoorUnitshouldbeelectricallycrossbondedwithless
thanorequalto3.0milliohmsdirectcurrent(DC)resistance.
(2)Only2cablesarerequiredforoperation.Onetoconnecttheboxesandtheothertoconnectto
theUAV.
B.IndoorUnitInstallation
(1)General
–Theterminaldoesnotrequireanycalibrationbytheuser/installer.
4.PhysicalConnectors
A.RFCable
(1)TheHoneywellpartnumber90600596willbesuppliedwiththeterminal.
(2)Thecoaxcableisabletohandletemperaturesbetween-40°Cto55°C(-40°Fto131°F).
(3)Thecablehasaxedlossrequirementandshouldnotbesubstitutedorshortened,orthe
terminalwillnotfunctionproperly.
Table 5.AntennaCableProperties
PartNumber
CoaxType
Length
(cm)
Weight(g)
Bending
RadiusIn-
stallation
(cm)
Bending
Radius
Repeated
(cm)
SMATorque
(N.m)
TNCTorque
(N.m)
90600596LMR-
100A-FR
50360.72.50.8-1.130.46-0.69
(4)ThecoaxcableconnectorisamaleTNC(totheantenna)andmaleSMAtotheindoorunit.
B.HarnessAssembly
(1)Lengthandweightofharnessassemblyis150cmand120g,respectively.
(2)
Cablehasan8-pincircular,latchingmaleconnectorattheIndoorUnitend,namely
FGG-1B-308-CLAD76Z(LEMO1Brange,8-pinplugwithcolletformax7.6mmdiameter
cable),withscreeningbraidanddrainwireclamped.RefertoT able6andFigure9.
Page24
18 Feb 2021
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SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
SMALL SATCOM