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+On a stationary GPS without a differential correction signal, you
+should see a 20 m average radius "drunken walk" pattern. On the same
+receiver with DGPS corrections and a good view of the sky, the
+error the same receiver with DGPS corrections and a good view of
+the sky, the error should be reduced to approximately 2 m average
+radius. If you've always wanted to know exactly where your house
+is located without that annoying GPS "wander," but didn't want to
+spend the money for a DGPS radio, here is your big chance!
+
+I'd like to announce a fun DGPS hack. I've written a small Un*x
+server and client for redistributing DGPS correction signals over
+the Net. Basically the server grabs the serial byte stream from my
+DGPS radio and sends it off over a TCP connection. The client does
+the same thing but in reverse.  The result is that you can receive
+the local DGPS corrections from absolutely anywhere by using the
+Internet as the world's largest extension cord. You'll still need
+to be within 1000 miles or so of San Francisco, California, USA
+for best results. However chances are better than not that the GPS
+error will still be reduced if you are 2000 to 3000 miles away.
+Several respondents from 2000 miles away have noted that the remote
+differenential signals have diminished the SA induced position and
+velocity errors by approximately 3x.