On 30/01/2017 04:13, sean wrote:
Hi All,
I'm real interested in NTP and accurate time, hence why I'm on this
newsgroup. I would like to look into getting a time sensor and I hear
the Garmin GPS 18X is what some folks run unless they need much more
precision. Is this still a pretty well regarding GPS unit for pretty
accurate (I know that's highly subjective) time keeping? This would be
a hobbyist thing and I'm not running an important business, if you were
going to ask.
Next question...Do most folks here use the NTPD client, or it is a
mixture of Chrony and openNTPD? Maybe some folks just go with what ships
with their OS?
The comparison chart is pretty nice and lays each option out nicely:
https://chrony.tuxfamily.org/comparison.html
I think that's all for now. Feel free to provide any URLs to any
resources I should check out about time sycing, NTP, etc.
Sean,
I have been running NTP on multiple systems since 2002, including Linux
and Windows (2000 and later), both with hardware sync (GPS18, GPS18x and
multiple GPS devices for the Raspberry Pi), and with LAN and Wi-Fi
network sources. I find NTP easy to manage and monitor over multiple
systems, and the fact that it runs on Windows, and can accept GPS
devices on Windows very valuable. You can easily get within 10
microseconds in Linux (but be careful of the temperature and GPS antenna
location), and within 200 microseconds on Windows when using an attached
GPS/PPS device.
http://www.satsignal.eu/mrtg/performance_ntp.php
For the Raspberry Pi:
https://store.uputronics.com/index.php?route=product/product&product_id=81
In terms of installations, I think that NTP will have by far the
greatest number, and of the three you listed, only NTP runs on Windows.
--
Cheers,
David
Web: http://www.satsignal.eu
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