Well, yeah, you can do CDMA for clock sync, too.
I've seen Arduino and Pi add-on cards that contain a GPS receiver and
you basically feed the 1PPS via GPIO or something like that. I don't
really want to go there.
I'll keep looking around and see what I can find for standard-ish PC
hardware.
On 9/5/2017 9:56 PM, Mike Hammett wrote:
USB cell modem?
I've asked all of our GPS capable vendors to provide this on the radio.
-----
Mike Hammett
Intelligent Computing Solutions <http://www.ics-il.com/>
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------------------------------------------------------------------------
*From: *"George Skorup" <george.sko...@cbcast.com>
*To: *af@afmug.com
*Sent: *Tuesday, September 5, 2017 9:19:28 PM
*Subject: *[AFMUG] GPS'd NTP
I've got a few CentOS machines running around the network doing various
tasks, one being NTP for radios, routers, switches, etc. I've been
having some issues with us.pool.ntp.org lately. I switched to
time-(a,b,c,d).nist.gov. Apparently those are pretty busy.
So is anyone else using GPS to feed NTPd? From what I've been reading, I
guess I need a 1PPS capable receiver. Does that exist in a simple USB
package? That would be ideal, preferably with an SMA female for an
external antenna where needed. Looks like none of the cheap shit I'm
finding on Amazon has PPS output.
