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Garmin vivoactive 3 Hands on and Photo Gallery

Garmin unveiled the vivoactive 3 smartwatch with GPS support at IFA 2017. We are live at the event and got our hands on the watch. The vivoactive 3 comes with a heart-rate monitor and 15 built-in indoor and outdoor sports apps. It is the first watch from the company to feature new contactless-payment solution Garmin Pay. � Continue reading "Garmin vivoactive 3 Hands on and Photo Gallery"

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Garmin GPS What you dont know can track you!

Garmin GPS devices track their position by default (caveat: at least every device I have been given to examine!).  They will do so, approximately every 30 seconds, when powered on.  Notice I said nothing about navigating.  Simply powering the devices causes them to start logging their location.  While this feature can be disabled, it is buried in the settings and I suspect that most users are not even aware of it.

The data is stored in a GPX file, also know as the Global Positioning Satellite (GPS) Exchange Format.  The most current track, appropriately named "Current.gpx," is stored in the "/Garmin/GPX" directory on the device.  Older tracks are stored in "/Garmin/GPX/Archive" directory.  The archives take on the name ".gpx," e.g,. "1.gpx," "2.gpx," etc.  I have never seen more that 17 archived files, but I dont know if this is a system limitation or just a coincidence that I have seen it more than once.  The history can cover quite a time span: my most recent examination revealed a history of 6 months!

GPX files are in xml.  The Current.gpx file can have interesting entries, including the "Home" address of the device owner.  I have used this setting to reunite stolen devices with their owners or thieves back to their homes. But the most interesting information is the device track, which consists of a series of GPS waypoints or "trackpoints" recorded by the device.  Here is a sample from an archive file:

There are many ways to handle a GPX file, but I have found it is most useful to convert it to a KML, or Key Hole Markup Language, file for use with Google Earth.  While I know that Google Earth is not an open sourced application, and other tools like "gpxviewer" can map the GPX file directly, most of the people I support are Windows users that have experience with Google Earth.

There are two methods I am aware of for creating KML files.  The first is using an online resource, like GPSVisualizer.  Just complete the online form and upload your file to make a map that meets your requirements.  Other formats, besides Google Earth, are possible, including Google Maps, JPG, PNG, SVG, and text.

I dont like to rely on websites, however, because Internet connectivity is never assured.  Enter GPSBabel.  GPSBabel is a command line tool (gui available) to convert over 100 different types of GPS data formats.  A basic conversion can be as simple as:

gpsbabel -i gpx -f input.gpx -o kml -F output.kml

There are numerous options, that I wont cover here, to customize your output file.  They include labeling the way points with the date and time they were created, allowing you to easily visualize the track.  Id recommend the use of a GUI to familiarize yourself with the customization options, though be aware that the GUIs seldom provide all available options.

I have used Garmin GPX files to map a suspects travels and place him them at crime scenes.  I hope with this information you will be able to do so, too!

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Garmin vivomove HR Hands On and Photo Gallery

Garmin announced vivomove HR -its first hybrid smartwatch at IFA 2017 last week. We are live at the event and got our hands on the watch. The vivmove HR has a stylish and elegant design. It comes with a built-in digital sub-display that shows fitness stats like steps taken calories burned, notifications and more. The � Continue reading "Garmin vivomove HR Hands On and Photo Gallery"

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