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Further, having owned one of these clocks for a brief period before the
holidays, WWVB doesn't have reliable coverage during the day (since it's affected by the same propagation issues as AM radio, if not more so). The clock I had (available at Sam's Club for about $25) set itself only once a day, assuming it got a signal in one of six hours from midnight to 6am. Maybe this is what was meant by "sets six times a day", but for what it's worth, my clock's manual said it only set once, if successful, but tried up to six times until it did. I honestly don't see the advantage in running so close to the time standard....if you want an accurate timebase, use the color burst signal from a local TV station....their timebase is every bit as accurate as what you'll get from WWVB, and most are available 24 hours a day. -- For direct replies, take out the contents between the hyphens. -Really!- "Tony Hwang" wrote in message ... tommyknocker wrote: Dennis wrote: HI, Does anybody have a circuit that will decode the WWVB signal,and output to a clock led circuit? TIA, Dennis Hi, Unless you want to have fun building a clock, there are many such clocks or watches out there. I wear a watch. Very accurate in time keeping. Tony, VE6CGX Yes, I have one of these clocks also. The thing is, these clocks are set 6 times in a 24hr perod by the WWVB signal. The rest of the time the time base is an ordinary crystal. I want my clock to be set on a more continous basis. This could only happen with the continous decoding of the signal. This is how the "professional" clocks, such as those made by Spectracom work. -Dennis You'll find that most of the schematics on the net for atomic clocks are of the crystal variety-they set once or twice a day with WWVB and the rest of the time use a crystal. You'll have to do some digging to come up with something that does continuous decoding, but I'm sure it's out there. Hi, That is just a WWVB reciever, ins't it? Tony, VE6CGX |
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