By a farm irragator and hacks it gps receiver!
Never tried them, but I know that in Streets and Trips it doesn't make any difference (2006 version, havent tried '07) because the program is only set to update on 1Hz signal. If you had a 1Ghz gps signal, you would still only update at 1Ghz with most programs.
I have seen another thread on here with 5Hz where someone pointed to a link to buy. Pretty cheap too, like $100 to $120... Sparkfun maybe? I'll dig around. After all, that is what badgers do!
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Badger smarts win!
http://www.mp3car.com/vbulletin/gps/...hz-anyone.html
It is sparkfun.com:
http://www.sparkfun.com/commerce/pro...ducts_id=8266#
Of course it is an OEM module, but meh. Good antenna reception and cheap-ish. $99