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Re: Time and cel nav, a stupid question
From: Richard B. Langley
Date: 2008 Apr 23, 12:31 -0300
From: Richard B. Langley
Date: 2008 Apr 23, 12:31 -0300
There is no Canadian LF time signal broadcast akin to WWVB. Only shortwave. So no Canadian "atomic clocks." The WWVB signal here in New Brunswick is weak but usable. -- Richard Langley On Wed, 23 Apr 2008, Fred Hebard wrote: > >In New England, the Canadian time broadcast is usually clearer. >Maybe order your clock from Canada? > >On Apr 23, 2008, at 8:59 AM, Marc Bernstein wrote: > >> Radio-controlled clock and watch updates are very much dependent >> upon the time of the day and where you are. In NY and New England >> it is hit or miss from day to day. NIST has a nice set of coverage >> maps here: >> >> http://tf.nist.gov/stations/wwvbcoverage.htm >> >> >> On Wed, Apr 23, 2008 at 3:14 AM, Bill>> wrote: >> >> >> >> Lu Abel wrote >> >> > Wait, I forgot that I also have one of those digital clocks that >> > synchronizes itself to the low-frequency time signal broadcast by >> WWVB. >> > It appears to be between 0.3 and 0.5 seconds slow as compared to the >> > www.time.gov display on my computer. On the other hand, >> considering >> > that it cost me all of $6, I have to wonder whether its time >> display is >> > more or less accurate. >> >> I have a unit marketed under the Sharp brand that I picked at Wal >> Mart. More >> than $6 dollars. It claims to poll once a day, about 1 am local >> time. It >> has failed to make an automatic connection for over two years. >> Positioned >> as directed, and manually triggered at the recommended time as well >> as other >> times, it has made a connection twice in over 500 tries. >> >> A sailing acquaintance with more money than common sense (center >> cockpit 42' >> sailboat) has a wristwatch that cost several hundreds dollars and >> claims to >> poll the clock six times a day. He is not sure how well it >> functions as the >> plastic band it came with broke the first month and he has not >> bothered to >> replace the watch band. >> >> For what it is worth. >> >> Thanks >> >> Bill >> >> >> >> >> >> > > > > >> > =============================================================================== Richard B. Langley E-mail: lang@unb.ca Geodetic Research Laboratory Web: http://www.unb.ca/GGE/ Dept. of Geodesy and Geomatics Engineering Phone: +1 506 453-5142 University of New Brunswick Fax: +1 506 453-4943 Fredericton, N.B., Canada E3B 5A3 Fredericton? Where's that? See: http://www.city.fredericton.nb.ca/ =============================================================================== --~--~---------~--~----~------------~-------~--~----~ Navigation List archive: www.fer3.com/arc To post, email NavList@fer3.com To , email NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---