Raymarine AXIOM 2 PRO - RF Interference; Compass Safe Distance

RFinterference
Certainthird-partye
xternalelectricalequipmentcancauseRadioFrequency
(RF)interferencewithGNSS(GPS),AISorVHFdevices,iftheexternal
equipmentisnotadequatelyinsulatedandemitsexcessivelevelsof
electromagneticinterference(EMI).
SomecommonexamplesofsuchexternalequipmentincludeLEDlighting
(e.g.:navigationlights,searchlightsandfloodlights,interiorandexterior
lights)andterrestrialTVtuners.
Tominimizeinterferencefromsuchequipment:
•KeepitasfarawayfromGNSS(GPS),AISorVHFproductsandtheir
antennasaspossible.
•Ensurethatanypowercablesforexternalequipmentarenotentangled
withthepowerordatacablesforthesedevices.
•Considerfittingoneormorehighfrequencysuppressionferritestothe
EMI-emittingdevice.Theferrite(s)shouldberatedtobeeffectiveinthe
range100MHzto2.5GHz,andshouldbefittedtothepowercableand
anyothercablesexitingtheEMI-emittingdevice,ascloseaspossibleto
thepositionwherethecableexitsthedevice.
Compasssafedistance
Topreventpotentialinterferencewiththevessel'smagneticcompasses,
ensureanadequatedistanceismaintainedfromtheproduct.
Whenchoosingasuitablelocationfortheproductyoushouldaimtomaintain
themaximumpossibledistancefromanycompasses.Typicallythisdistance
shouldbeatleast1m(3.3ft)inalldirections.Howeverforsomesmaller
vesselsitmaynotbepossibletolocatetheproductthisfarawayfroma
compass.Inthissituation,whenchoosingtheinstallationlocationforyour
product,ensurethatthecompassisnotaffectedbytheproductwhenit
isinapoweredstate.
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