Sometimes I see a „ghost ship“ with my MMSI number near by. Are the GPS Pos incorrect?

This error is probably due to your plotter or PC software.The easyTRX always sends the own position in a NMEA-Sentence, too. It is the sentence “VDO” (own AIS position). The other targets (ships) are sent with the sentence “VDM” to the plotter/PC. We guess that the plotter or PC software you use does not make a difference between VDO and VDM. An update could help here. The easyTRX can not suppress the VDO, because it is mandatory.