<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:<hr /><font size="1" face="Verdana, Helvetica, sans-serif">Originally posted by Sillyspeed:
<strong>Guys, this is something that interests me, could I be really boring and ask someone to guide me through this from scratch? Like, what is the difference between GPS and SatNav, what they do, how do they work, what they cost and how do you go about fitting it yourself?.....if you've got an hour to spare....pretty please? wink </strong><hr /></blockquote><font size="1" face="Verdana, Helvetica, sans-serif">GPS stands for Global Positioning System, originally a US military satellite positioning system. It's a system of a number of satellites in different geostationary (stay in the same place above the earths surface) positions. By checking position of each one with a GPS receiver software can work out where you are on the worlds surface to within a few metres.
Satnav uses these these satellites linked to software with a map of the roads to tell you where you are & best route to your destination.
So Satellite Navigation systems use GPS Satellites - they're sort of the same thing.
If your car has a DIN1 slot & you go for a DIN1 system it's a fairly straightforward job, like swopping stereos. My VDO dealer included fitting in the cost & it only took an hour or so.
I think minimum cost is still over £1k, but not up to date with the latest situation, so check the discount dealers.
Check the other thread mentioned for more details.
I used a VDO MS4100 & it works fine, still available I believe & fairly low cost. See http://www.vdodayton.com/index2.aspx...blue&status=n1