---
name: dgpsip
version: 1.35
origin: astro/dgpsip
comment: Differential GPS over IP communication device
arch: freebsd:9:x86:64
www: http://www.madbavarian.org/gps/dgps-ip.html
maintainer: jharris@widomaker.com
prefix: /usr/local
licenselogic: single
flatsize: 33695
desc: "On a stationary GPS without a differential correction signal, you\nshould see
  a 20 m average radius \"drunken walk\" pattern. On the same\nreceiver with DGPS
  corrections and a good view of the sky, the\nerror the same receiver with DGPS corrections
  and a good view of\nthe sky, the error should be reduced to approximately 2 m average\nradius.
  If you've always wanted to know exactly where your house\nis located without that
  annoying GPS \"wander,\" but didn't want to\nspend the money for a DGPS radio, here
  is your big chance!\n\nI'd like to announce a fun DGPS hack. I've written a small
  Un*x\nserver and client for redistributing DGPS correction signals over\nthe Net.
  Basically the server grabs the serial byte stream from my\nDGPS radio and sends
  it off over a TCP connection. The client does\nthe same thing but in reverse.  The
  result is that you can receive\nthe local DGPS corrections from absolutely anywhere
  by using the\nInternet as the world's largest extension cord.  You'll still  need\nto
  be within 1000 miles or so of San Francisco, California, USA\nfor best results.
  However chances are better than not that the GPS\nerror will still be reduced if
  you are 2000 to 3000 miles away.\nSeveral respondents from 2000 miles away have
  noted that the remote\ndifferential signals have diminished the SA-induced position
  and       \nvelocity errors by approximately 3 times.\n\nWWW: http://www.madbavarian.org/gps/dgps-ip.html\n"
categories: [geography, astro]
files:
  /usr/local/bin/dgpsip: 34857314f30ca24c7282be06edb1e026e1c7070083db5c1227449394ab6522f7
  /usr/local/man/man1/dgpsip.1.gz: a126fe1bf54cca37bb58754217821994fe32ceab7699e88eae7554949cfff0aa
scripts: {}
