[ntp:questions] Installing more stable oscillator?

Steve Kostecke kostecke at ntp.org
Sun Jul 15 16:10:58 UTC 2007


On 2007-07-15, Pete Stephenson <pete+usenet at heypete.com> wrote:

> How good is the GPS 18 LVC as a time source?

http://www.kostecke.net/ntp/index.html?date=20070101

This is a plot of a loopstats file from a Soekris 4801 + FreeBSD 5.3 w/
an attached GPS-18LVC.

Both the 4801 and the GPS were located in my ventilated, unheated, attic
at the time this data was collected.

The 4801 was sitting on top of some insulation and the case cover was
removed.

The GPS was sitting on a board (between two roof trusses) approximately
18" below a shingled roof. There was no "direct" sky view.

YMMV

-- 
Steve Kostecke <kostecke at ntp.org>
NTP Public Services Project - http://support.ntp.org/




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