3.2 linked to Standard Horizon GX2100E which provides AIS
information via a NMEA
to USB convertor. All was working well until recently when AIS
targets were not displayed and the AIS button was replaced with a question mark overlying the usual icon. According to the wiki, this means that there is a filter applied to AIS targeting, but I have checked the my settings and have no filter applied.
Does the AIS question mark icon have any other meanings - like OpenCPN
is not receiving any AIS information at all?
Any ideas? Thanks