Tony There seem to be many variables. Cost, power, how many, overall stability etc. Most likely you will find that the GPS module is not the most expensive part but the VCXO. It also makes a large difference if it is one off or a larger volume is needed. You can always find a bargain, and maybe a close out sale but if you have to look at a continuous supply the picture changes dramatically and also the design. Bert Kehren In a message dated 5/2/2014 11:40:47 P.M. Eastern Daylight Time, [email protected] writes:
On 03/05/2014 00:59, [email protected] wrote: > Welcome to the nuts Tony Thanks, Bert. > You are not specifying exactly how accurate time has to be but in my book > and based on tests the most reasonable priced GPS with 1 pps is a > Ublox 6M > that you can get with antenna for less than $ 22 antenna included from > _www.DX.com_ (http://www.DX.com) . They have volume discount. > Shipping is very > slow but included. They seem to be presently out of the 1 pps version but > all ublox units have a 1 pps output and I use with and without and all > I do is > solder a wire to pin 3. > Bert Kehren As I said in my first post I'd like to achieve an accuracy of better than 100ns - or 50ns if possible at reasonable cost. I had come across the Ublox 6M when I was looking earlier, but I misunderstood the data sheet and thought it was only the expensive ($135) LEA/NEO-6T versions which provided timing. Definitely worth a closer look - the NEO-6M is specced at 30ns RMS which is good enough. The power consumption is a little higher than I would have liked at 37mA/3V, but still rather less than others. Thanks, Tony _______________________________________________ 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. _______________________________________________ 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.
