RE: GPS / PQA

[Nick Hammond]

Is the grammer/syntax for these NMEA sentences available only in the $125.00
spec described by 
http://www.nmea.org/0183.htm or does anyone know of another source of the
information. 

There is a quite good FAQ at
http://vancouver-webpages.com/pub/peter/nmeafaq.txt

Regards, Nick