[ntp:questions] Is there an easier way to hook a GPS clock to NTP or a free shortwave audio line level out?
ntp at universal-mechanism.org
Sun Dec 13 16:06:49 UTC 2015
I am using a system76.com Wild Dog Pro desktop computer running Ubuntu
15.10, I bought it in December 2015. It has no serial port. I have a
Shortwave radio if that will work to hook up to NTP. Researching the
net reveals many howto for hooking up GPS OEM radios. This usually
involves soldering, cutting and working with little tiny things, all of
which I am terrible at. I have heard of GPS radios that plug into your
PCI-E slot, now that sounds cool, but pricey.
Does anybody have any recommendation as to how I can turn myself into
an accurate stratum 0 or 1 client, I am not interested in being a
server. In case your wondering why, I don't know why, I do have an
official diagnosis of OCD, that might explain it. Not accurate time
bothers me a lot.
I have an Eton E1 HF receiver that keeps it's clock accurate via the HF
time bands, but not the LF band, strange, on the other hand your
guaranteed to get an HF signal worldwide as opposed to LF. It also has
an audio line out and does anybody have any experience with line level
audio for time keeping. Maybe I should start there before forking over
the cash for some project I can't finish.
Here's what I'm willing to do.
Do the shortwave radio thing first. Free and what I learn from it I
can apply to below.
Buy an PCI-E port serial card, one that you guys tell me to buy, budget
Buy an GPS PCI-E card or external device. I can't give you a figure
for what I'm willing to pay because I have no idea what they cost.
Just doing this for fun. Love NTP.
Currently I am getting Internet through my Verizon Samsung Galaxy S6
Edge WiFi hotspot. -102 dBm and 38 asu signal, poor signal for 4G LTE.
Once I get up in the morning I turn off the Internet at about 11 am and
the computer won't see a connection again until 8 or 9 pm. So NTP is
only connected during the night when I'm sleeping. Anybody know how I
can keep track of clock drift when NTP gets woken up at night, be
interesting to see how accurate the motherboard is.
My current NTP stats.
First one is from peer.awk
ident cnt mean rms max delay
126.96.36.199 21 30.724 60.139 161.716 103.967
2604:a880:800:10::bc:c00d 19 8.736 16.624 32.476 134.039
188.8.131.52 18 19.069 23.196 46.512 141.819
2001:67c:1560:8003::c7 17 -2.631 18.085 41.863 204.340
184.108.40.206 18 37.286 26.949 50.019 147.775
nate at frontier:~$ ntpq -p
remote refid st t when poll reach delay offset
+deekayen.net 220.127.116.11 2 u 554 1024 377 135.533 -23.196
*time.tritn.com 18.104.22.168 2 u 531 1024 377 82.637 -26.905
+2604:a880:800:1 22.214.171.124 2 u 592 1024 377 149.243 -23.740
+126.96.36.199 188.8.131.52 2 u 1007 1024 377 109.755 5.461
+golem.canonical 184.108.40.206 2 u 488 1024 377 182.265 -44.495
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