# The astro/dgpsip port

## dgpsip-1.35 – Differential GPS over IP communication device

## Description

    On a stationary GPS without a differential correction signal, you
    should see a 20m average radius "drunken walk" pattern. On the same
    receiver with DGPS corrections and a good view of the sky,
    the error should be reduced to approximately 2m 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
    differential signals have diminished the SA induced position and
    velocity errors by approximately 3x.

WWW: http://www.wsrcc.com/wolfgang/gps/dgps-ip.html

Categories:
  astro

## Library dependencies

## Build dependencies

- STEM->=1.21:textproc/groff

## Run dependencies