Thank you for your reply. I will try to take a new log next time I see the problem, but I do not expect that the result will differ from the previous log I sent you.
I was hoping that it could be possible to make the unit output everything it receives or some error message from faulty messages, but that is probably not the case.
I am not using a splitter. The signal is received directly from the connected QK-AS02 antenna.
Normally I receive AIS signals from all the ships around me, but in some cases as single ship is missing.