[ntp:questions] Indirect GPS time source options
unruh at invalid.ca
Wed Mar 12 19:59:29 UTC 2014
On 2014-03-12, Olivier Drouin <ol.drouin at gmail.com> wrote:
> I'm located in Canada and I'm trying to find indirect GPS time sources. I like the idea of using CDMA as a time source but it seems that this technology will not be around for a lot longer.
What is an "indirect gps timing source"? How does that differ from using
ntp to go to a level 1 server which gets its time from gps. While cdma
uses accurate time, it is not really designed to deliver accurate time.
> For exemple, Endrun Technologies sells the Sonoma N12 which seems to allow time synchronization against CDMA signal without the need for a carrier subscriptions.
And a gps receiver with PPS output is probably 1/100 the price.
> Is the CDMA method still available with these other cellulare network technologies like HSPA or LTE? If not, do I have other options beside a GPS antenna with a sky view?
CDMA also needs an antenna with cell tower view. What's the difference?
(Note my gps on an east facing window through a large cedar tree works
> Thank you and best regards,
> Olivier Drouin.
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