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* Windows users can skip steps 2 - 6* A tip for VirtualBox users, remember to go into the image settings after you're done and have shutdown/stopped the image session and Settings -> Serial Ports, and disable the Serial port (uncheck box) so that you are able to use the virtual image after you've later disconnected the APRS USB device, or your image will not start in its absence!* If not connected to an antenna be sure to connect the APRS device to a dummy load while it is powered on during programming. There needs to be a 50 ohm approximate load.