10 MHz is handy as it is normally available day and night. I would sync my wristwatch to it all the time.
In high school if a teacher wanted to dismiss a class early for lunch they would ask me what time it was because the simplex slaved clock system at school was always on the fritz. When it was working I was well known for counting down the seconds until the bell rang. Of course you could always call the operator. From: Ken Hohhof Sent: Saturday, January 11, 2020 8:19 AM To: 'AnimalFarm Microwave Users Group' Subject: Re: [AFMUG] WWV OK, this morning the clock is showing all 4 signal bars, so apparently you just have to give these things a few hours. Maybe they sync once a day or something. But WWV is still transmitting! I remember as a kid around 1960 setting clocks and watches by WWV on the shortwave radio, we didn’t have cellphones or the Internet. But the big console radio / record player in the living room had AM, FM and shortwave. I remember it had a big 12 or 15 inch speaker that had an electromagnet instead of a permanent magnet, the coil also acted as an inductor in the radio power supply. I used that radio as the receiver when I built an FM transmitter with my 12-in-1 Knight Kit. From: AF <af-boun...@af.afmug.com> On Behalf Of Mike Hammett Sent: Friday, January 10, 2020 5:24 PM To: AnimalFarm Microwave Users Group <af@af.afmug.com> Subject: Re: [AFMUG] WWV http://cqnewsroom.blogspot.com/2019/03/wwv-funding-restored-centennial.html ----- Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP -------------------------------------------------------------------------------- From: "Ken Hohhof" <af...@kwisp.com> To: "AnimalFarm Microwave Users Group" <af@af.afmug.com> Sent: Friday, January 10, 2020 4:55:37 PM Subject: Re: [AFMUG] WWV Sorry, 60 kHz is correct. This is where I saw that it was on the budget chopping block: http://cqnewsroom.blogspot.com/2019/03/wwv-funding-restored-centennial.html Fake news? From: AF <af-boun...@af.afmug.com> On Behalf Of ch...@wbmfg.com Sent: Friday, January 10, 2020 4:48 PM To: AnimalFarm Microwave Users Group <af@af.afmug.com> Subject: Re: [AFMUG] WWV WWVB is solidly supported by the guvmnt. No worries about that signal. I thought it was 60 KHz. In any event you can pick it up almost everywhere. You should not have to wait more than a half hour for a clock to lock on. You might have a bad clock or something in the environment making the signal a bit weaker. I was doing a solar panel tracker a few years ago and was wanting to use this signal to get RTC info. Turns out the only receiver chip manufacturer had stopped making the chip. Reason was, an antenna, capacitor and perhaps a transistor is all you need to feed the raw RF directly into a MCU chip. It is pretty strong. From: Ken Hohhof Sent: Friday, January 10, 2020 3:13 PM To: 'AnimalFarm Microwave Users Group' Subject: [AFMUG] WWV I am trying to get a cheap “atomic” clock to synchronize, not sure if I have to wait until night time propagation or what, it is only showing 1 signal bar. But I did a couple Google searches, and was the federal government actually planning about a year ago to defund WWV and take it off the air? Seriously? And that didn’t happen, right, WWVB is still transmitting? I was a little surprised to realize there is just the one transmitter site in Colorado, and that WWVB transmits on such a low frequency (50 kHz) and sends 1 bit per second of data. -------------------------------------------------------------------------------- -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com -------------------------------------------------------------------------------- -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
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