Raymarine Dragonfly-4 - Cable Routing; Selecting a Location for the Display

3.11Cablerouting
Cableroutingrequirementsforthetransducercable.
Important:Toavoidinterference,thecablemust
beroutedasfarawayfromVHFradioantenna
cablesaspossible.
•Thecablecanberoutedthroughoroverthe
transom.
•Checkthatthecableislongenoughtoreach
theequipmentthatitwillbeconnectedto.An
optional4m(13.1ft)extensioncableisavailable
ifrequired.
•Ensurethereisenoughslackinthetransducer
cable,atthetransducerend,toallowthe
transducertopivotupanddown.
•Securethecableatregularintervalsusingthe
suppliedcableclips.
•Fillalltransommountingholeswithmarine-grade
sealantpriortotighteningsecuringscrews.
•Fillthetransomcableholewithmarine-grade
sealantafterroutingthecable(ifroutingthrough
thetransom).
•Usethesuppliedescutcheontocoverover
thetransomcablehole(ifroutingthroughthe
transom).
•Anyexcesscablecanbecoiledupataconvenient
location.
3.12Selectingalocationforthe
display
Generallocationrequirements
Whenselectingalocationfortheunititisimportant
toconsideranumberoffactors.
Ventilationrequirements
Toprovideadequateairow:
•Ensurethatequipmentismountedina
compartmentofsuitablesize.
•Ensurethatventilationholesarenotobstructed.
•Ensureadequateseparationofequipment.
Mountingsurfacerequirements
Ensureunitsareadequatelysupportedonasecure
surface.DoNOTmountunitsorcutholesinplaces
whichmaydamagethestructureofthevessel.
Cableroutingrequirements
Ensuretheunitismountedinalocationwhichallows
properroutingandconnectionofcables:
•Minimumcablebendradiusof100mm(3.94in)is
requiredunlessotherwisestated.
•Usecablesupportstopreventstresson
connectors.
Electricalinterference
Selectalocationthatisfarenoughawayfrom
devicesthatmaycauseinterference,suchas
motors,generatorsandradiotransmitters/receivers.
GPSlocationrequirements
Inadditiontogeneralguidelinesconcerningthe
locationofmarineelectronics,thereareanumber
ofenvironmentalfactorstoconsiderwheninstalling
equipmentwithaninternalGPSantenna.
Mountinglocation
•AboveDecksmounting:
Itisrecommendedthatthedisplayismounted
abovedecksasthisprovidesoptimalGPS
performance.
•BelowDecksmounting:
GPSperformancemaybelesseffectivewhen
mountedbelowdecks.
Vesselconstruction
Theconstructionofyourvesselcanhaveanimpact
onGPSperformance.Forexample,theproximity
ofheavystructuressuchasastructuralbulkhead,
ortheinterioroflargervesselsmayresultina
reducedGPSsignal.Beforelocatingequipment
withaninternalGPSantennabelowdecks,seek
professionalassistance.
Prevailingconditions
Theweatherandlocationofthevesselcanaffectthe
GPSperformance.Typicallycalmclearconditions
provideforamoreaccurateGPSx.Vesselsat
extremenortherlyorsoutherlylatitudesmayalso
26
Dragony-4/Dragony-5/WiFish