[193755] in North American Network Operators' Group
Re: WWV Broadcast Outages
daemon@ATHENA.MIT.EDU (Majdi S. Abbas)
Wed Feb 22 03:34:28 2017
X-Original-To: nanog@nanog.org
Date: Tue, 21 Feb 2017 11:45:04 -0500
From: "Majdi S. Abbas" <msa@latt.net>
To: Sean Donelan <sean@donelan.com>
In-Reply-To: <alpine.BSF.2.20.1702211119480.18789@cnex.qbaryna.pbz>
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org
On Tue, Feb 21, 2017 at 11:21:09AM -0500, Sean Donelan wrote:
> If any network operators still use WWV for time synchronization.
I wouldn't expect this to cause any serious synchonization
problem; anyone using HF for time has to have the ability to hold
over for a miniumum of several hours anyway due to the vagaries of
normal shortwave propagation. (Even 24-48 hour disruptions aren't
uncommon after a large solar event.)
That said, I and many others "still use" WWV -- there aren't
exactly a surplus of suitable backup methods to GPS these days.
But if anyone needs it, consider using the fine HF time
service provided by our friendly neighbors to the north:
http://www.nrc-cnrc.gc.ca/eng/services/time/short_wave.html
--msa
