nanog mailing list archives
Re: Standalone Stratum 1 NTP Server
From: "David G. Andersen" <dga () lcs mit edu>
Date: Wed, 28 Aug 2002 03:12:44 -0400
On Tue, Aug 27, 2002 at 11:07:10PM -0700, Jim Hickstein mooed:
--On Wednesday, August 28, 2002 12:51 AM -0400 "David G. Andersen" <dga () lcs mit edu> wrote: At work, it's all steel studs and foil-backed wallboard, and the windows (for a patch GPS antenna) are _way over there_. *sigh* I'd love it if someone would pay for my roof penetration there.
Does your cell phone work in the room? The CDMA time receivers work in the strangest places. The only places I've had no luck: - In the bowels of a big building along the mass tech corridor - when moved to a bad spot inside a fairly steel and concrete-heavy lab at the university of utah (works in other spots in the lab). But aside from that, I've got them working in network closets and labs all over the place. Worth giving a shot if you're really desperate to play. They're not quite as accurate as GPS (~10 microseconds vs. ~2-5 microseconds), but what's a few microseconds compared to sticking an antenna on the roof? (As a frequency standard, they're quite good. But you can't autocorrect for the CDMA propagation delay). -Dave -- work: dga () lcs mit edu me: dga () pobox com MIT Laboratory for Computer Science http://www.angio.net/ I do not accept unsolicited commercial email. Do not spam me.
Current thread:
- Standalone Stratum 1 NTP Server Mike Leber (Aug 26)
- Re: Standalone Stratum 1 NTP Server Mike Lyon (Aug 27)
- Re: Standalone Stratum 1 NTP Server Karsten W. Rohrbach (Aug 27)
- <Possible follow-ups>
- Re: Standalone Stratum 1 NTP Server CARL . P . HIRSCH (Aug 27)
- Re: Standalone Stratum 1 NTP Server Mike Lyon (Aug 27)
- Re: Standalone Stratum 1 NTP Server John Todd (Aug 27)
- Re: Standalone Stratum 1 NTP Server bmanning (Aug 27)
- Re: Standalone Stratum 1 NTP Server Majdi S. Abbas (Aug 27)
- Re: Standalone Stratum 1 NTP Server David G. Andersen (Aug 27)
- Message not available
- Re: Standalone Stratum 1 NTP Server David G. Andersen (Aug 28)
- Re: Standalone Stratum 1 NTP Server John Todd (Aug 27)
- Re: Standalone Stratum 1 NTP Server Mike Lyon (Aug 27)
- Re: Standalone Stratum 1 NTP Server Randy Bush (Aug 28)
- Re: Standalone Stratum 1 NTP Server Robert E. Seastrom (Aug 28)
- Re: Standalone Stratum 1 NTP Server Majdi S. Abbas (Aug 28)
- Re: Standalone Stratum 1 NTP Server Johannes Ullrich (Aug 28)