[AusNOG] GPS timesource

[Serge Burjak]

http://www.ebay.com.au/itm/1PPS-USB-GPS-ublox-GR-8013W-for-NTP-time-server-GR-601W-replacement-/281917039829?hash=item41a390a4d5:g:I~kAAOSwsLtVfoVZ

"Compatible with Linux, FreeBSD with NTP & GPSD installed"

Serge

On 28 January 2016 at 09:42, Greg <mclennan at internode.on.net> wrote:
> I use a KT2000 GPS SNTP Timeserver(<$500) at work for a core router..
> KT2000pdf.
> I know there are way better units on the market, but bang for buck for
> reasonable time accuracy it does the job.
>
> From a hobbyist's perspective. I'v been toying with  the idea to utilize an
> Arduno board with a GPS & Network shield and write or adapt some S/NTP
> code.. Should be do-able for around $100(less on ebay!), but time and effort
> on the code will be the painful bit..
>
> https://www.arduino.cc/en/Main/ArduinoBoardUno
> https://www.arduino.cc/en/Main/ArduinoEthernetShield
> https://www.adafruit.com/products/1272
>
> and end up with something that may look like :
> http://files.hwkitchen.com/200000066-820df8307f/GSM%20Playground%20-%20stackable.jpg
>
>
> Regards
> Greg
>
>
> On 28/01/2016 9:10 AM, Paul Gear wrote:
>
> On 27/01/16 12:33, KIRN Paul (Powerlink) wrote:
>
> Hi All,
> As reported on Slashdot there have been observances of GPS time error in the
> last 24 hrs (during Australia Day holiday here). With reports from of a
> 13.7usec step change -  possibly coincidental with the decommissioning of
> GPS satellite SVN23 (PRN32) on 25-1-15 or other issues to with UTC
> correction parameters.
> http://it.slashdot.org/story/16/01/26/1735223/discrepancy-detected-in-gps-time
> https://www.febo.com/pipermail/time-nuts/2016-January/095692.html
> http://www.navcen.uscg.gov/?Do=gpsShowNanu&num=2016008
>
> Wondering if any noggers have seen any alarms on your GPS receiver time
> sources in the last 24 hours?
>
> As an adjunct question, what sort of hardware are you using for your NTP
> stratum 1 sources (GPS, atomic, whatever), and are there any which are
> in the affordable range for the hobbyist?
>
> Paul
>
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