Serial messages to record:


POSMV
$INGGA
positions

$INGST
position quality

$PASHR attitude and attitude quality



ASHTECH
$GPGGA
position and position quality

$PASHR,ATT
attitude and quality



Seapath
$GPGGA
position and position quality

$PSXN,20
partial attitude quality

$PSXN,22
more attitude quality






Unless you have a good reason to output additional messages, it is better not to.  VmDas can get bogged down if there are too many serial messages coming in.  For instance, if the serial output is dedicated to the ADCP, it not necessary to output $GPVTG, $GPHDT, or $PRDID messages.