[Elecraft] [OT] WWV Time Transmissions

[n6lrv at outlook.com]

Bill,
WWVB added a new modulation format starting around 2012/13 that includes a phase shift that some older clocks can no longer resolve. If you're technically inclined the internet is loaded with fixes for some older clocks as well as further information on this topic like <https://www.californiahistoricalradio.com/wp-content/uploads//2017/02/CHRS-Construction-BPSK-Dephaser-John-Staples.pdf>.

Gary, N6LRV

________________________________
From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> on behalf of Bill Frantz <frantz at pwpconsult.com>
Sent: Monday, August 31, 2020 5:44 PM
To: Elecraft at mailman.qth.net <Elecraft at mailman.qth.net>
Subject: [Elecraft] [OT] WWV Time Transmissions

I had a friend ask me if something has happened to WWV's time
transmissions. He says the clocks in his home and his watch are
no longer syncing correctly. I think these are syncing to
signals at about 60KHz.

Does anyone know anything about this?

73 Bill AE6JV

-----------------------------------------------------------------------
Bill Frantz        | "The only thing we have to   | Periwinkle
(408)348-7900      | fear is fear itself." - FDR  | 150
Rivermead Rd #235
www.pwpconsult.com<http://www.pwpconsult.com> | Inaugural address, 3/4/1933  |
Peterborough, NH 03458

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to n6lrv at outlook.com