On Wed, May 8, 2019 at 11:12 PM Eric S. Raymond <esr@thyrsus.com> wrote:
Once upon a time, Royce Williams <royce@techsolvency.com> said:
The La Crosse 404-1235UA-SS UltrAtomic (not affiliated, just a fan)
Chris Adams <cma@cmadams.net>: tracks
DST - and even leap seconds. They have much better reach than previous similar clocks.
Looks like somebody finally brought a clock to market that uses the new-format phase-modulated signal. Hopefully there'll be more, but with the WWVB funding threats, I wouldn't be surprised if companies don't want to invest in any new products that use it.
Interesting - first device I've heard of that uses the new-format fine modulation, and as NTPsec's tech lead I keep as close an eye on such developments as anybody.
Before this I had thought that a combination of clock vendors feeling burned by the modulation change and cheap GPSes entirely killed the market for devices that can get high-precision time from WWBV.
Anybody know of anything fitting that description that you might want to deploy in a data center as a Stratum 1? If such a creature exists I shall contrive to get my lunch hooks on one and write a driver for it.
That would be fantastic. I mentioned it on Freenode when it first came out - but it may have escaped your attention. :) An eBay search for "EverSet ES100 WWVB BPSK Phase Modulation Receiver Kit" should prove fruitful. I have one - but I haven't had time to tinker with it yet. The kit comes with the double-antenna setup that appears to be key to the improved reception. In the clocks, the antennas are at 90 degrees relative to each other. Royce