Raymarine c95 - Page 146

Automaticroutegeneration-userdened
settings
Userdenedsettingsmustbesetbeforeusing
automaticroutegeneration.Thesettingsusedfor
routegenerationaredependentoncartography
vendor.
Usersetting
Navionics
®
Autorouting
C-MAPby
Jeppesen
EasyRouting
MinimumSafe
Depth
MinimumSafe
Beam
MinimumSafe
Height
Referto3.17Initialsetupproceduresfordetailson
settingtherequireduserdenedsettings.
DifferencesbetweenAutoroutingandEasy
Routing
Thereareimportantdifferencesbetweentheway
Navionics
®
andJeppesen
®
handleautomaticroute
generation.
Navionics
®
Autorouting
C-MAPby
Jeppesen
EasyRouting
Tidalheight—
Depthclearance
Autorouting
avoidsshallow
areasbasedon
theuserdened
MinimumSafe
Depthsetting
plusanadditional
Navionics
safetymargin.
Autorouting
assumesthe
lowesttidelevel,
normallyLowest
AstronomicalTide
(LAT).Thetidecan
belowerthanLAT
duetoatmospheric
effectssuchas
highairpressure,
winddirection,etc.
EasyRouting
assumesthatthere
willbesometide.
Theusermust
applytheirown
safetymarginas
appropriateto
currentconditions.
Routelegsthat
crossareas
shallowerthan
theuserdened
MinimumSafe
Depthsetting
aremarkedwith
hazardwaypoint
symbols,itis
criticalthatthese
legsarechecked
toensurethat
thereissufcient
tidetoavoidthe
hazard.
Beam/Height
constraints
Autoroutingdoes
notusetheuser
denedMinimum
SafeBeamor
MinimumSafe
Heightsettingsto
generateroutes.
Objectswithbeam
/heightconstraints
aremarkedwith
hazardwaypoint
symbols,itis
criticalthatthese
legsarechecked
toensurethat
thereissufcient
clearancetoavoid
thehazard.
EasyRouting
usestheuser
denedMinimum
SafeBeamand
MinimumSafe
Heightsettings
todetermine
ifsufcient
clearanceis
available.The
usermust
applythereown
safetymarginas
appropriateto
currentconditions.
TheHeightdatum
mustbechecked,
asitcouldbe
MeanHighWater
Springs(MHWS)
orHighest
AstronomicalTide
(HAT).Inboth
casesthetidecan
behigherthan
thedatumdue
toatmospheric
effectssuchas
highairpressure,
winddirection,etc.
146
LightHouseMFDoperationinstructions