16 Jan
2024
16 Jan
'24
2:39 a.m.
I'm in San Jose, Calif. I have a cheap clock that I picked up at a garage sale. It
being a cheap clock, uses a ferite rod, so is quite directional. Also, I need to place it
in a window as well. It seems to pick up the signal at least once a day, most likely after
dark.
Mine blinks the antenna signal when it thinks it is receiving the signal and then has a
solid one when it updates, for a day. These are all different so your milage may vary.
Dwight
________________________________
From: Robert Feldman via cctalk <cctalk(a)classiccmp.org>
Sent: Monday, January 15, 2024 12:17 PM
To: cctalk(a)classiccmp.org <cctalk(a)classiccmp.org>
Cc: Robert Feldman <r_a_feldman(a)hotmail.com>
Subject: [cctalk] Re: WWVB
Message: 17
Date: Mon, 15 Jan 2024 12:52:15 -0500
From: Bill Gunshannon <bill.gunshannon(a)hotmail.com>
Subject: [cctalk] Re: WWVB
To: cctalk(a)classiccmp.org
Message-ID: <SA1PR17MB5737C194F181927517114C55ED6C2(a)SA1PR17MB5737.nam
prd17.prod.outlook.com>
Content-Type: text/plain; charset=UTF-8; format=flowed
On 1/15/2024 10:47 AM, Chris Elmquist via cctalk wrote:
Your original email with the link did not make it into the digest, which is what I
receive.
Chirs, Did you also send it directly to Bill. Perhaps that is what he got.
Bob
On Sunday (01/14/2024 at 09:55PM -0600), Chris
Elmquist via cctalk wrote:
It did. I got it.
bill There are a number of WWVB simulator projects out
there that will transmit a weak but usable signal to your clock after getting sync’d from
ntp or GPS NMEA time messages. They were developed to help people develop receivers :-)
One in particular uses an AVR and it should be pretty simple to make it do the “old
protocol”. You’d then hide this behind your clock and it will sync to it instead of the
actual WWVB signal. Solves the protocol problem and the weak signal problem from real
WWVB with one little circuit.
If Google does not provide, I can dig up some links tomorrow.
Hmm. Strange. I did follow-up shortly after the above post with this
link,
https://www.instructables.com/WWVB-Simulator/
but I don't see that that made it to the list.
Chris