Standard Horizon GX6000 bad and good news, plus new HX890 and HX40
What the heck? An AIS transceiver with a decent antenna up reasonably high can see other AIS transceivers fairly far away, but not 3,508 nautical miles! What’s actually illustrated here was a Standard Horizon GX6000 mistranslating AIS target positions into NMEA 2000, as strongly suggested by the photo below. But as bad as that glitch was, there’s already a firmware fix and the way the update operation works has further benefits.