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I am trying to install my Garmin device (garmin gps 18x usb) so that I can use it in ArcMap, but always I am having the following error.

Unable to detect GPS device on COM ports supported by the hardware. Make sure Your GPS is turned on, connected properly, and sending data. Also review the Baud rate, Stop bits, Data bits, Parity settings for the port on this dialog.

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  • Please always include error messages as text so that they are available to future searches.
    – PolyGeo
    Commented Sep 23, 2016 at 6:27
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    Your GPS is a USB device. You probably need to do some port mapping on your machine to expose it as a COM port Commented Sep 24, 2016 at 15:31
  • @BenSNadler I think your comment would qualify as a brief answer.
    – PolyGeo
    Commented Jan 9, 2017 at 9:30
  • it's a rather vague answer but I will put it in per your recommendation. Commented Jan 9, 2017 at 18:01

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Your GPS is a USB device. You probably need to do some port mapping on your machine to expose it as a COM port. This is windows version dependent but you can get general how-to here

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