On Thu, 15 Nov 2012 05:02:54 -0800, Jim Lux <[email protected]> wrote:
>On 11/15/12 4:30 AM, David J Taylor wrote: >> i just used this to with a raspberry pi with good success. >> >> https://www.adafruit.com/products/746 >> >> james >> =============================================== >> >> It looks idea, James, but ... with the 15 mm square patch antenna it >> seems deaf compared to similar devices with 25 mm antennas. Perhaps >> understandable, but I just bought one and it's been sitting for well >> over an hour and not yet acquired lock. The device I bought from China, >> sitting next to it, has been happily locked for that whole period. (As >> I'm running a test I don't want to unlock the other device). Just a >> caveat for someone considering using these devices indoors - size matters! >> >> 25 mm antenna device: >> http://www.satsignal.eu/ntp/NEO-6M-under-initial-test.jpg >> http://www.satsignal.eu/ntp/Raspberry-Pi-NTP.html >> >> Cheers, >> David > > >ALl good ideas.. but I was looking more for something a bit more >packaged.. like a hockey puck with wires coming out. I picked up a used Garmin GPS18-5Hz hockey puck to play with and after updating the firmware, have gotten good results with the cable going out a window and the unit sitting on the lower edge of the roof. Its 5 pulse per second output has 60ns of resolution according to the Racal Dana 1992 I repaired implying about a 16.6 MHz timing clock. _______________________________________________ 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.
