http://wimopodcast.com/HWTests/gpsmain.htm
http://www.kh-gps.de/nmea-faq.htm
http://wimopodcast.com/HWTests/roadsf2.htm
http://forum.pocketnavigation.de/forum38-gps-empfaenger-kabelgebunden/61501-ps-2-auf-seriell-belegung/
http://www.kh-gps.de/auto.htm
http://forum.pocketnavigation.de/forum38-gps-empfaenger-kabelgebunden/47314-roadstar-rn-202-liefert-falsche-signale/

http://en.wikipedia.org/wiki/NMEA


http://web.archive.org/web/*sr_31nr_30/http://road-navigation.de/*
http://web.archive.org/web/20050827021917/http://road-navigation.de/navtalk/html/nmea.html
http://www.kh-gps.de/auto.htm
http://web.archive.org/web/20080503164409/http://www.kh-gps.de/auto.htm


http://www.google.com/search?hl=en&safe=off&client=firefox-a&hs=hVK&rls=org.mozilla%3Aen-US%3Aofficial&q=Roadstar+RN-202+-panasonic+kabel&aq=f&aqi=&aql=&oq=&gs_rfai=
http://www.google.com/search?q=gps_adapterkabel.html&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a