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WWVB information
Posted by BHarvey [Email] (more from BHarvey) on Mon, 3 Apr 2006 07:09:06
In Reply to: Re: way OT: Daylight time and atomic clocks, CWilson, Mon, 3 Apr 2006 06:22:12
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The government's WWV radio stations have provided time standards for several decades. Here's a nice description of the transmitter and format: http://tf.nist.gov/timefreq/stations/wwvb.htm
The transmit frequency is only 60kHz, so the receiver can only have a very inefficient antenna. Further, to save battery life, your receiver will switch on only perhaps once per day, and if it cannot find the WWVB signal it will have to rely on its own internal time reference. It may then miss daylight savings data until it regains radio contact. Depending on your and WWVB's atmospheric conditions, this can come and go.
posted by 12.146.134...
Posts in this Thread:
- way OT: Daylight time and atomic clocks, David in Michigan, Mon, 3 Apr 2006 06:08:28
- Same Thing Happened to Me, jetplate, Wed, 5 Apr 2006 13:32:11
- Are those things any more accurate than, J, Mon, 3 Apr 2006 13:48:25
- You don't have an atomic clock, your clocks sync....., TKC, Mon, 3 Apr 2006 06:23:54
- Re: way OT: Daylight time and atomic clocks, jp, Mon, 3 Apr 2006 06:22:20
- Re: way OT: Daylight time and atomic clocks, CWilson, Mon, 3 Apr 2006 06:22:12
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