Kipton Moravec wrote: > I am designing a system with a GPS module, and started looking at all > of the things it could do, including time. [] > 1. A GPS module with the ability to expand the serial port to more > than 10 to allow you to use the NTP NEMA driver. The time pulse would > be accurate to about 30 nS RMS. Retail cost about $100. > > 2. A time server with 2 Ethernet ports, with GPS time reference, to > directly support between 50 and 100 users using GPS. Retail Cost about > $200
Speaking purely personally, I would like to see a box the size of a home router (paperback book size), with a very sensitive GPS chipset (so I could use it indoors) which provided stratum 1 time over Ethernet. This might even be an existing router with modified firmware and a sensitive GPS RX. Microsecond accuracy would be perfectly adequate, and it would only need to serve a few users (although I can see other places where thousands of users would be needed). I would prefer a cost of $150. >From the number of enquiries I have received, I also see a market for someone to make a small box ($10-$25) to interface a Garmin GPS18-LVC to their computer and a 12V (or USB) power supply. Cheers, David -- SatSignal software - quality software written to your requirements Web: http://www.satsignal.eu Email: [EMAIL PROTECTED] _______________________________________________ timekeepers mailing list [email protected] https://fortytwo.ch/mailman/cgi-bin/listinfo/timekeepers
