Raymarine p70Rs - EMC Installation Guidelines

Viewingangleconsiderations
Asdisplaycontrastandcolorareaffectedbytheviewingangle
,Itisrecommendedthatyou
temporarilypowerupthedisplay,priortoinstallation,toenableyoutobestjudgewhichlocation
providestheoptimumviewingangle.
Fortheviewinganglesforyourproductrefertop.43—Technicalspecification
EMCinstallationguidelines
RaymarineequipmentandaccessoriesconformtotheappropriateElectromagneticCompatibility
(EMC)regulations,tominimizeelectromagneticinterferencebetweenequipmentandminimizethe
effectsuchinterferencecouldhaveontheperformanceofyoursystem
CorrectinstallationisrequiredtoensurethatEMCperformanceisnotcompromised.
Note:Inareasofe xtremeEMCinterference,someslightinterferencemaybenoticedonthe
product.Wherethisoccurstheproductandthesourceoftheinterferenceshouldbeseparated
byagreaterdistance.
ForoptimumEMCperformancewerecommendthatwhereverpossible:
•R aymarineequipmentandcablesconnectedtoitare:
–Atleast1m(3.3ft)fromanyequipmenttransmittingorcablescarryingradiosignalse.g.VHF
radios,cablesandantennas.InthecaseofSSBradios,thedistanceshouldbeincreasedto2
m(6.6ft).
–Morethan2m(6.6ft)fromthepathofaradarbeam.Aradarbeamcannormallybeassumedto
spread20degreesaboveandbelowtheradiatingelement.
•Theproductissuppliedfromaseparatebatteryfromthatusedforenginestart.Thisisimportant
topreventerraticbehavioranddatalosswhichcanoccuriftheenginestartdoesnothavea
separatebattery.
•Raymarinespecifiedcablesareused.
•Cablesarenotcutorextended,unlessdoingsoisdetailedintheinstallationmanual.
Note:
Whereconstraintsontheinstallationpreventanyoftheaboverecommendations,alwaysensure
themaximumpossibleseparationbetweendifferentitemsofelectricalequipment,toprovidethe
bestconditionsforEMCperformancethroughouttheinstallation.
RFinterference
Certainthird-partye xternalelectricalequipmentcancauseRadioFrequency(RF)interferencewith
GNSS(GPS),AISorVHFdevices,iftheexternalequipmentisnotadequatelyinsulatedandemits
excessivelevelsofelectromagneticinterference(EMI).
SomecommonexamplesofsuchexternalequipmentincludeLEDlighting(e.g.:navigationlights,
searchlightsandfloodlights,interiorandexteriorlights)andterrestrialTVtuners.
Tominimizeinterferencefromsuchequipment:
•KeepitasfarawayfromGNSS(GPS),AISorVHFproductsandtheirantennasaspossible.
•Ensurethatanypowercablesforexternalequipmentarenotentangledwiththepowerordata
cablesforthesedevices.
•ConsiderfittingoneormorehighfrequencysuppressionferritestotheEMI-emittingdevice.The
ferrite(s)shouldberatedtobeeffectiveintherange100MHzto2.5GHz,andshouldbefitted
tothepowercableandanyothercablesexitingtheEMI-emittingdevice,ascloseaspossibleto
thepositionwherethecableexitsthedevice.
Installation19