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Discussion of precise time and frequency measurement

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TBolt disciplined receivers...

B
Bill
Thu, Nov 13, 2008 1:31 AM

Will TAPR be getting anymore of these units, if anyone knows?

I'm always a day late and a couple a' dollars short.

Bill Mason

W5TP

Will TAPR be getting anymore of these units, if anyone knows? I'm always a day late and a couple a' dollars short. Bill Mason W5TP
BH
Bill Hawkins
Thu, Nov 13, 2008 3:27 AM

My apologies, but I didn't think you'd want to hear about jumps.

My good friend, and software genius, was late for a lunch appointment
today. The "atomic" alarm clock that he has used for years was 3.3
hours behind this morning, but not on any other morning. My WWVB clock
was dead on at 4 PM (in MN, where we both are located).

Anybody got a story about an "atomic" clock messing up like that?

Bill Hawkins

"It's five o'clock somewhere ..." Jimmy Buffet

My apologies, but I didn't think you'd want to hear about jumps. My good friend, and software genius, was late for a lunch appointment today. The "atomic" alarm clock that he has used for years was 3.3 hours behind this morning, but not on any other morning. My WWVB clock was dead on at 4 PM (in MN, where we both are located). Anybody got a story about an "atomic" clock messing up like that? Bill Hawkins "It's five o'clock somewhere ..." Jimmy Buffet
BK
Brian Kirby
Thu, Nov 13, 2008 3:33 AM

I figure there is no CRC check for the WWV clocks.

I had on lose it for about 3 days in the middle of summer, and then it
picked it back up and has been OK since.

Maybe local RFI when the clock went to check the signal....

Brian KD4FM

Bill Hawkins wrote:

My apologies, but I didn't think you'd want to hear about jumps.

My good friend, and software genius, was late for a lunch appointment
today. The "atomic" alarm clock that he has used for years was 3.3
hours behind this morning, but not on any other morning. My WWVB clock
was dead on at 4 PM (in MN, where we both are located).

Anybody got a story about an "atomic" clock messing up like that?

Bill Hawkins

"It's five o'clock somewhere ..." Jimmy Buffet


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I figure there is no CRC check for the WWV clocks. I had on lose it for about 3 days in the middle of summer, and then it picked it back up and has been OK since. Maybe local RFI when the clock went to check the signal.... Brian KD4FM Bill Hawkins wrote: > My apologies, but I didn't think you'd want to hear about jumps. > > My good friend, and software genius, was late for a lunch appointment > today. The "atomic" alarm clock that he has used for years was 3.3 > hours behind this morning, but not on any other morning. My WWVB clock > was dead on at 4 PM (in MN, where we both are located). > > Anybody got a story about an "atomic" clock messing up like that? > > Bill Hawkins > > "It's five o'clock somewhere ..." Jimmy Buffet > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. >
BC
Brooke Clarke
Thu, Nov 13, 2008 3:39 AM

Hi Brian:

The WWVB clocks typically want to see 2 or 3 minutes go by where the data
packets have date and time incrementing by 1 minute.  If you see that then you
have valid data.  Hard for interference to mess it up.

But a low battery will cause problems, i.e. the clock may miss steps and get
behind, not sync, etc.  I wonder which way Bill's friend's clock was off?

Have Fun,

Brooke Clarke
http://www.prc68.com

Brian Kirby wrote:

I figure there is no CRC check for the WWV clocks.

I had on lose it for about 3 days in the middle of summer, and then it
picked it back up and has been OK since.

Maybe local RFI when the clock went to check the signal....

Brian KD4FM

Bill Hawkins wrote:

My apologies, but I didn't think you'd want to hear about jumps.

My good friend, and software genius, was late for a lunch appointment
today. The "atomic" alarm clock that he has used for years was 3.3
hours behind this morning, but not on any other morning. My WWVB clock
was dead on at 4 PM (in MN, where we both are located).

Anybody got a story about an "atomic" clock messing up like that?

Bill Hawkins

"It's five o'clock somewhere ..." Jimmy Buffet


time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.


time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

Hi Brian: The WWVB clocks typically want to see 2 or 3 minutes go by where the data packets have date and time incrementing by 1 minute. If you see that then you have valid data. Hard for interference to mess it up. But a low battery will cause problems, i.e. the clock may miss steps and get behind, not sync, etc. I wonder which way Bill's friend's clock was off? Have Fun, Brooke Clarke http://www.prc68.com Brian Kirby wrote: > I figure there is no CRC check for the WWV clocks. > > I had on lose it for about 3 days in the middle of summer, and then it > picked it back up and has been OK since. > > Maybe local RFI when the clock went to check the signal.... > > Brian KD4FM > > > > Bill Hawkins wrote: >> My apologies, but I didn't think you'd want to hear about jumps. >> >> My good friend, and software genius, was late for a lunch appointment >> today. The "atomic" alarm clock that he has used for years was 3.3 >> hours behind this morning, but not on any other morning. My WWVB clock >> was dead on at 4 PM (in MN, where we both are located). >> >> Anybody got a story about an "atomic" clock messing up like that? >> >> Bill Hawkins >> >> "It's five o'clock somewhere ..." Jimmy Buffet >> >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. >
NJ
Neon John
Thu, Nov 20, 2008 4:16 AM

On Wed, 12 Nov 2008 21:27:10 -0600, "Bill Hawkins" bill@iaxs.net wrote:

My apologies, but I didn't think you'd want to hear about jumps.

My good friend, and software genius, was late for a lunch appointment
today. The "atomic" alarm clock that he has used for years was 3.3
hours behind this morning, but not on any other morning. My WWVB clock
was dead on at 4 PM (in MN, where we both are located).

Anybody got a story about an "atomic" clock messing up like that?

Yup.  I have an "Atomix" brand wall mounted clock that picks up the wrong time
by a random amount about once a week.  I have "atomic" clocks all over the
place (would anyone on this list expect any less? :-) so I had to put a little
label on it that says "this clock is not accurate".  I keep it around mainly
for entertainment and because it reads one of my outdoor temperature sensors.

John

John De Armond
See my website for my current email address
http://www.neon-john.com
http://www.johndearmond.com <-- best little blog on the net!
Tellico Plains, Occupied TN
Nothing in life is to be feared. It is only to be understood. -Marie Curie

On Wed, 12 Nov 2008 21:27:10 -0600, "Bill Hawkins" <bill@iaxs.net> wrote: >My apologies, but I didn't think you'd want to hear about jumps. > >My good friend, and software genius, was late for a lunch appointment >today. The "atomic" alarm clock that he has used for years was 3.3 >hours behind this morning, but not on any other morning. My WWVB clock >was dead on at 4 PM (in MN, where we both are located). > >Anybody got a story about an "atomic" clock messing up like that? Yup. I have an "Atomix" brand wall mounted clock that picks up the wrong time by a random amount about once a week. I have "atomic" clocks all over the place (would anyone on this list expect any less? :-) so I had to put a little label on it that says "this clock is not accurate". I keep it around mainly for entertainment and because it reads one of my outdoor temperature sensors. John -- John De Armond See my website for my current email address http://www.neon-john.com http://www.johndearmond.com <-- best little blog on the net! Tellico Plains, Occupied TN Nothing in life is to be feared. It is only to be understood. -Marie Curie