On Thu, September 9, 2010 1:10 pm, Matthew Kaufman wrote: > On 9/9/2010 8:37 AM, Ralph Smith wrote: >> We have a requirement for approximately ten radio sites to be >> synchronized >> to within 30 ns of each other. > 30 ns seems a little closer than most radio site applications need... > what drives this requirement?
Aircraft surveillance using multilateration. >> Ordinarily you could throw in an >> appropriate GPSDO and be done with it. However, we also have the >> reqirement to be able to operate independent of GPS for up to six days. > Wow, ok, and what drives *that* requirement? Can you use any other Paranoia. People making the requirements are concerned with GPS going away due to solar flare or some other reason. > mutually visible thing, or do we assume all satellites have vanished > from orbit? No satellites. Thanks, Ralph _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
