Thus it came to pass that the manufacturers of marine navigation systems were the first civilians to grapple with the question of how a GPS receiver should report TPV information over a wire to a navigational computer. The first civilian customers to actually find a use for it were people messing about in boats. But it’s not - oh, it’s decidedly not - and thereby hangs an entertaining tale of hacker ingenuity versus multiple layers of suck.Īway back in the dark and backward abysm of time when GPS technology was first being made generally available (1993), only military-grade receivers were sensitive enough to use it where there were things like buildings and trees partly blocking the sky view.
I’m the lead of the GPSD project, a service daemon that monitors GPS receivers on serial or USB ports and provides TPV (time-position-velocity) reports in a simple format on on a well-known Internet port.
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