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Discussion of precise time and frequency measurement

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CHU transmitters off air for a while

JB
Joseph B. Fitzgerald
Wed, May 25, 2022 9:48 PM

Was looking for CHU over the weekend and couldn't find it, nor any clear indication of what was wrong on the Web.  Kind of unsettling for a time nut!

Found out today at https://nrc.canada.ca/en

"Due to the recent severe weather event in the Ottawa-Gatineau area, the CHU time signal for shortwave radio has been impacted and is currently unavailable. We are working to restore the service as quickly as possible. Thank you for your patience. "

  • Joe Fitzgerald KM1P
Was looking for CHU over the weekend and couldn't find it, nor any clear indication of what was wrong on the Web. Kind of unsettling for a time nut! Found out today at https://nrc.canada.ca/en "Due to the recent severe weather event in the Ottawa-Gatineau area, the CHU time signal for shortwave radio has been impacted and is currently unavailable. We are working to restore the service as quickly as possible. Thank you for your patience. " - Joe Fitzgerald KM1P
JF
John Franke
Wed, May 25, 2022 11:25 PM

Thanks for the information/update!

John WA4WDL

On May 25, 2022 at 5:48 PM "Joseph B. Fitzgerald via time-nuts" time-nuts@lists.febo.com wrote:

Was looking for CHU over the weekend and couldn't find it, nor any clear indication of what was wrong on the Web.  Kind of unsettling for a time nut!

Found out today at https://nrc.canada.ca/en

"Due to the recent severe weather event in the Ottawa-Gatineau area, the CHU time signal for shortwave radio has been impacted and is currently unavailable. We are working to restore the service as quickly as possible. Thank you for your patience. "

  • Joe Fitzgerald KM1P

time-nuts mailing list -- time-nuts@lists.febo.com
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Thanks for the information/update! John WA4WDL > On May 25, 2022 at 5:48 PM "Joseph B. Fitzgerald via time-nuts" <time-nuts@lists.febo.com> wrote: > > > Was looking for CHU over the weekend and couldn't find it, nor any clear indication of what was wrong on the Web. Kind of unsettling for a time nut! > > Found out today at https://nrc.canada.ca/en > > "Due to the recent severe weather event in the Ottawa-Gatineau area, the CHU time signal for shortwave radio has been impacted and is currently unavailable. We are working to restore the service as quickly as possible. Thank you for your patience. " > > > > - Joe Fitzgerald KM1P > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com
JF
John Franke
Tue, May 31, 2022 11:46 AM

CHU is back on the air! I checked last night at 8:01 PM EDT and again this morning. The signal was loud and clear.

John WA4WDL

On May 25, 2022 at 5:48 PM "Joseph B. Fitzgerald via time-nuts" time-nuts@lists.febo.com wrote:

Was looking for CHU over the weekend and couldn't find it, nor any clear indication of what was wrong on the Web.  Kind of unsettling for a time nut!

Found out today at https://nrc.canada.ca/en

"Due to the recent severe weather event in the Ottawa-Gatineau area, the CHU time signal for shortwave radio has been impacted and is currently unavailable. We are working to restore the service as quickly as possible. Thank you for your patience. "

  • Joe Fitzgerald KM1P

time-nuts mailing list -- time-nuts@lists.febo.com
To unsubscribe send an email to time-nuts-leave@lists.febo.com

CHU is back on the air! I checked last night at 8:01 PM EDT and again this morning. The signal was loud and clear. John WA4WDL > On May 25, 2022 at 5:48 PM "Joseph B. Fitzgerald via time-nuts" <time-nuts@lists.febo.com> wrote: > > > Was looking for CHU over the weekend and couldn't find it, nor any clear indication of what was wrong on the Web. Kind of unsettling for a time nut! > > Found out today at https://nrc.canada.ca/en > > "Due to the recent severe weather event in the Ottawa-Gatineau area, the CHU time signal for shortwave radio has been impacted and is currently unavailable. We are working to restore the service as quickly as possible. Thank you for your patience. " > > > > - Joe Fitzgerald KM1P > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com
JB
Joseph B. Fitzgerald
Tue, May 31, 2022 5:20 PM

Glad it is back ... according to their web site all three signals went back up at 14:45 UTC yesterday.  Since all three transmitters went offline and back online at the same time I wonder if it was a case of utility power being restored?  Presumably the cesium clocks have backup power, but maybe they can't keep the transmitters on for extended periods with on site generation.  Must have been some storm to affect that area, Hydro Quebec reports that 2% of customers still offline from that event!

  • Joe Fitzgerald KM1P
Glad it is back ... according to their web site all three signals went back up at 14:45 UTC yesterday. Since all three transmitters went offline and back online at the same time I wonder if it was a case of utility power being restored? Presumably the cesium clocks have backup power, but maybe they can't keep the transmitters on for extended periods with on site generation. Must have been some storm to affect that area, Hydro Quebec reports that 2% of customers still offline from that event! - Joe Fitzgerald KM1P
D
Dave
Tue, May 31, 2022 5:48 PM

Excuse  my ignorance but what is CHU ???  Is it like MSF ??

Dave

On 31/05/2022 12:46, John Franke via time-nuts wrote:

CHU is back on the air! I checked last night at 8:01 PM EDT and again this morning. The signal was loud and clear.

John WA4WDL

On May 25, 2022 at 5:48 PM "Joseph B. Fitzgerald via time-nuts" time-nuts@lists.febo.com wrote:

Was looking for CHU over the weekend and couldn't find it, nor any clear indication of what was wrong on the Web.  Kind of unsettling for a time nut!

Found out today at https://nrc.canada.ca/en

"Due to the recent severe weather event in the Ottawa-Gatineau area, the CHU time signal for shortwave radio has been impacted and is currently unavailable. We are working to restore the service as quickly as possible. Thank you for your patience."

  • Joe Fitzgerald KM1P

time-nuts mailing list -- time-nuts@lists.febo.com
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Excuse  my ignorance but what is CHU ???  Is it like MSF ?? Dave On 31/05/2022 12:46, John Franke via time-nuts wrote: > CHU is back on the air! I checked last night at 8:01 PM EDT and again this morning. The signal was loud and clear. > > > John WA4WDL > >> On May 25, 2022 at 5:48 PM "Joseph B. Fitzgerald via time-nuts" <time-nuts@lists.febo.com> wrote: >> >> >> Was looking for CHU over the weekend and couldn't find it, nor any clear indication of what was wrong on the Web. Kind of unsettling for a time nut! >> >> Found out today at https://nrc.canada.ca/en >> >> "Due to the recent severe weather event in the Ottawa-Gatineau area, the CHU time signal for shortwave radio has been impacted and is currently unavailable. We are working to restore the service as quickly as possible. Thank you for your patience." >> >> >> >> - Joe Fitzgerald KM1P >> _______________________________________________ >> time-nuts mailing list -- time-nuts@lists.febo.com >> To unsubscribe send an email to time-nuts-leave@lists.febo.com > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com
PL
Peter Laws
Tue, May 31, 2022 6:31 PM

On Tue, May 31, 2022 at 1:30 PM Dave via time-nuts
time-nuts@lists.febo.com wrote:

Excuse  my ignorance but what is CHU ???  Is it like MSF ??

Yes and no.  More akin to WWV in that it transmits on HF (MSF is only
60 kHz like WWVB, yes?)

https://nrc.canada.ca/en/certifications-evaluations-standards/canadas-official-time/nrc-shortwave-station-broadcasts-chu

--
Peter Laws | N5UWY | plaws plaws net | Travel by Train!

On Tue, May 31, 2022 at 1:30 PM Dave via time-nuts <time-nuts@lists.febo.com> wrote: > > Excuse my ignorance but what is CHU ??? Is it like MSF ?? Yes and no. More akin to WWV in that it transmits on HF (MSF is only 60 kHz like WWVB, yes?) https://nrc.canada.ca/en/certifications-evaluations-standards/canadas-official-time/nrc-shortwave-station-broadcasts-chu -- Peter Laws | N5UWY | plaws plaws net | Travel by Train!
JB
Joseph B. Fitzgerald
Tue, May 31, 2022 6:49 PM

Dave,

CHU is Canada's time broadcast station, similar to MSF, but  intended to be received by a shortwave AM receiver and has voice announcements intended for the general public in addition to coded time information.  Details below:

https://nrc.canada.ca/en/certifications-evaluations-standards/canadas-official-time/nrc-shortwave-station-broadcasts-chu

-Joe Fitzgerald KM1P

Dave, CHU is Canada's time broadcast station, similar to MSF, but intended to be received by a shortwave AM receiver and has voice announcements intended for the general public in addition to coded time information. Details below: https://nrc.canada.ca/en/certifications-evaluations-standards/canadas-official-time/nrc-shortwave-station-broadcasts-chu -Joe Fitzgerald KM1P
S-
SSC - Mitch - VE6OH - CIW308
Tue, May 31, 2022 8:14 PM

From what I remember from a tour many years ago, the local clock was
some how synced to the master at the lab.

If for some reason they lost sync then the transmitters were dropped. I
was told at that time that transmitting no time is better than
transmitting a bad time.

Mitch

J. T. (Mitch)  Mitchell 780 446 8958 Cell
Amateur Radio Call VE6OH / CFARS Call CIW308 / CIW930
Past Director for RAC - AB, NU, NWT  RAC.CA
Celebrating 100 years of amateur radio in Alberta summer 2022
www.ar100.ca

Shift to the Left, Shift to the Right, Push - Pop, Byte Byte Byte

On 2022-05-31 11:20, Joseph B. Fitzgerald via time-nuts wrote:

Glad it is back ... according to their web site all three signals went back up at 14:45 UTC yesterday.  Since all three transmitters went offline and back online at the same time I wonder if it was a case of utility power being restored?  Presumably the cesium clocks have backup power, but maybe they can't keep the transmitters on for extended periods with on site generation.  Must have been some storm to affect that area, Hydro Quebec reports that 2% of customers still offline from that event!

  • Joe Fitzgerald KM1P

time-nuts mailing list -- time-nuts@lists.febo.com
To unsubscribe send an email to time-nuts-leave@lists.febo.com

From what I remember from a tour many years ago, the local clock was some how synced to the master at the lab. If for some reason they lost sync then the transmitters were dropped. I was told at that time that transmitting no time is better than transmitting a bad time. Mitch J. T. (Mitch) Mitchell 780 446 8958 Cell Amateur Radio Call VE6OH / CFARS Call CIW308 / CIW930 Past Director for RAC - AB, NU, NWT RAC.CA Celebrating 100 years of amateur radio in Alberta summer 2022 www.ar100.ca Shift to the Left, Shift to the Right, Push - Pop, Byte Byte Byte On 2022-05-31 11:20, Joseph B. Fitzgerald via time-nuts wrote: > Glad it is back ... according to their web site all three signals went back up at 14:45 UTC yesterday. Since all three transmitters went offline and back online at the same time I wonder if it was a case of utility power being restored? Presumably the cesium clocks have backup power, but maybe they can't keep the transmitters on for extended periods with on site generation. Must have been some storm to affect that area, Hydro Quebec reports that 2% of customers still offline from that event! > > - Joe Fitzgerald KM1P > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe send an email to time-nuts-leave@lists.febo.com
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