Nielsen-Kellerman ClearNav GPS Receiver User Manual

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NKClearNavManual•Version0.5•July3,2008

Page29of86

ThegoodnewsisthattheClearNavsupportsseveraltypesofwaypointandairspacedatafiles–to

makeiteasytofinddataforyourarea.However,therearesomerecommendedfiletypes.Usingthe

recommendedfiletypeswillallowthesoftwaretoworkatitsbestanddisplaythelargestamountof

information.

Anyexperiencedpilotwilltellyouthatsometimesitisbesttolimittheamountofinformationonthe

movingmap.Justbecauseitispossibletodisplayvastamountsofdataonthemapatoncedoesnot

meanthatdisplayingeverythingwillbeagoodthing.Sometimesitisgoodtohidecertaintypesto

datatolimittheamountofscreenclutter.Fortunately,theClearNavmakesiteasytoenableand

disablecertaintypesofdatawhendesired.

2.3.1 WaypointFiles

Waypointfilesconsistofalistofnavigationpointstodisplayonthemap.Thereareseveraltypesof

waypoints.Theyincludeairports,contestturnpoints,landingpoints(fieldsknowntobegoodplacesto

landwhennecessary),etc.TheClearNavsupportswaypointfilesintheformatslistedbelow.Linksare

providedtodetaileddataandexamplefilesforeachfiletype.

WhentransferringwaypointfilestotheClearNav,putthedesiredwaypointfilesintothe“MapData”/

“Waypoints”directoryontheUSBFlashDriveorSDmemorycard.Thefileswillbepulledintothe

ClearNavuponstart‐up.

2.3.1.1 WorldwideSoaringTurnpointExchange(.stx)files

ThebesttypeofwaypointfiletouseintheClearNavistheWorldwideSoaringTurnpointExchange

format.Itishighlyrecommendedthatyouusethistypeofwaypointfilewheneverpossible.Ifyou

usethisformatairportswilldisplayonthemapwiththerunwayshownwiththecorrectorientation.

We’llcallthem.stxfiles.Thiswaypointfileformatispreferredoverothercompatibletypesbecauseit

canbeextendedeasilytoincludetypesofdatanotsupportedinotherwaypointfiletypes.Thegreat

newsisthat.stxfilesarealreadyavailableontheWorldwideSoaringTurnpointExchangeforevery

soaringsitelistedthere.Sincethefileisasimpletabseparatedtextfile,itisalsoeasytoeditexisting

filesmanually,orcreatenewfiles.

Description:http://soaringweb.org/TP/stx.htmlorhttp://soaringweb.org/TP/nk_clearnav.html

ExampleFile:http://soaringweb.org/TP/Albert_lea/albert7c.stx



2.3.1.2 Cambridge(.dat)files

ThisformatisOK,butitdoesnotincludeasmuchinformationabouteachwaypoint.

Description:http://soaringweb.org/TP/cai.html

ExampleFile:http://soaringweb.org/TP/Albert_lea/albert7c.dat

2.3.1.3 SeeYou(.cup)files

ThisformatisOK,butitdoesnotincludeasmuchinformationabouteachwaypointanditsupports

onlyoneattribute(Turnpoint,Airport,Landable,etc.)foreachwaypoint.The2fileformatsabove

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Nielsen-Kellerman ClearNav GPS Receiver User Manual