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Not sure how your original tracks and data were recorded, but if they are as GPX files then the key might be to leave them as this rather than trying to turn them into anything else. If not, then perhaps export as GPX. GPX does a good job of storing tracks in particular. What's important about a GPX track is that it's a record of a set of readings of point ...


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The Garmin ETREX 30 is announced to have 65000 colours, meaning that it uses 16bit colours. This is quite outdated for modern graphics on computers. So you have to restrict the colours inside QGIS to a 16-bit palette. 8-bit_color or 256 colours would be on the safe side. Using vector data by exporting GPX files is much easier, but restricted to 200 tracks. ...


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0.0009° is 3.24 arc sec, which is 3.24 * cos(40°) * 101 ft/asec = 251 feet, where I’m assuming your latitude is ~40° (northern Nevada). This suggests that the transformation by the CoordTrans software is not including any datum shift of any kind. I don’t the know the details of how you are interfacing the Trimble to the CoordTrans software, but perhaps the ...


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Does this Help? Not sure if the sentences are device specific, and it's a bit dated. But this could be a good place to start. http://www8.garmin.com/support/pdf/NMEA_0183.pdf I Found The link above in a post on the Garmin Forum here.



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