Re: [time-nuts] Heathkit clock available

I have a couple of Nixie clock kits I got from pvelectronics.co.uk. They have a plug in GPS module. No doubt it does not meet time-nuts standards but to my eye and ear, the tick is spot-on with WWV, which makes it suitable for setting my watch and knowing when to walk the dogs. With the Pound

Re: [time-nuts] Heathkit clock available

bill.i...@pobox.com said: > Different regions can have different phase behavior. I have only seen West > Coast plots on this list. When I did some work with this in Minnesota in the > eighties, the phase variation was only about 6 seconds during a day and zero > from day to day. On the west

Re: [time-nuts] Heathkit clock available

There are two systems that affect line frequency anywhere in the world. One is the use of multiple power producers generating steam for turbines that turn huge generators. The generators are synchronized by the distribution networks that connect them. A generator rotates at the frequency

Re: [time-nuts] Heathkit clock available

Thank you Tom, I have a very primitive frequency comparator built some thirty years ego, which compares the line frequency to WWVb 60kHz, since the new format for WWVb was introduced it does not work so great any more, but it is still good enough to see if the line frequency is to fare off.

Re: [time-nuts] Heathkit clock available

Alex (et al), There is also the FNET project here: http://fnetpublic.utk.edu/ They have monitoring boxes that various people set up to monitor line frequency, disciplined to GPS, and upload to their servers. I have one of these boxes in my office (Unit #1033 here:

Re: [time-nuts] Heathkit clock available

> before you buy AC line disciplined clock read that Alex, That old article from 2011 is misleading. It correctly describes what was being /proposed/, but it turns out NERC chose not to implement what the article (fears) talks about. There are lots of time-nuts postings about this in the 2011

Re: [time-nuts] Heathkit clock available

before you buy AC line disciplined clock read that It hertz when you do that – power grid to stop regulating 60 Hz frequency https://wattsupwiththat.com/2011/06/25/it-hertz-when-you-do-that-power-grid-to-stop-regulating-60-hz-frequency/ 73 KJ6UHN Alex On 8/8/2016 2:29 PM, Nick Sayer via

Re: [time-nuts] Heathkit clock available

On 8/10/16 8:03 PM, Chris Albertson wrote: But for sure a GPS module, a handful of buttons, 7 7-seg LEDs (I’d display a 10 Hz digit), a little phototransistor dimming circuit and an ATMega… $99 retail? Certainly doable. Almost everyone one Earth already owns a GPS sync'd alarm clock. My

Re: [time-nuts] Heathkit clock available

On Thu, Aug 11, 2016 at 4:03 AM, Chris Albertson wrote: > Digital clocks are just not the amazing technical wonders they once > were. > > No, but it's interesting that they've considered the interface rather than using the common one supported by generic clock chips.

Re: [time-nuts] Heathkit clock available

> > But for sure a GPS module, a handful of buttons, 7 7-seg LEDs (I’d display a > 10 Hz digit), a little phototransistor dimming circuit and an ATMega… $99 > retail? Certainly doable. Almost everyone one Earth already owns a GPS sync'd alarm clock. My iPhone does all I need, pretty decent

Re: [time-nuts] Heathkit clock available

> On Aug 10, 2016, at 4:01 PM, David wrote: > > On Wed, 10 Aug 2016 16:55:39 -0400, you wrote: > >> On 8/10/2016 11:31 AM, Nick Sayer via time-nuts wrote: >>> Frankly, I don’t know why they didn’t make it a GPS clock. That would truly >>> be a worthy successor to the

Re: [time-nuts] Heathkit clock available

On Wed, 10 Aug 2016 16:55:39 -0400, you wrote: >On 8/10/2016 11:31 AM, Nick Sayer via time-nuts wrote: >> Frankly, I don’t know why they didn’t make it a GPS clock. That would truly >> be a worthy successor to the GC-1000. Well, I do suspect I know why… and >> it’s not flattering. :) > >As I

Re: [time-nuts] Heathkit clock available

On 8/10/2016 11:31 AM, Nick Sayer via time-nuts wrote: Frankly, I don’t know why they didn’t make it a GPS clock. That would truly be a worthy successor to the GC-1000. Well, I do suspect I know why… and it’s not flattering. :) As I recall ( At 70 my memory is not quite as accurate as it

Re: [time-nuts] Heathkit clock available

Frankly, I don’t know why they didn’t make it a GPS clock. That would truly be a worthy successor to the GC-1000. Well, I do suspect I know why… and it’s not flattering. :) Heck, if I thought I’d sell more than a handful, I’d make a desk-side GPS alarm clock and put it on Tindie. I’m actually

Re: [time-nuts] Heathkit clock available

Hi Bill: For night viewing ceiling projection clocks are the way to go. I have both very old ones and a new (WWVB) one. http://www.prc68.com/I/Shadow-Clock.shtml -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html The lesser of evils is still

Re: [time-nuts] Heathkit clock available

The GC-1000 was the Most Accurate Clock. This new GC-1006 is Most Reliable without mentioning accuracy. The ad says that the standby oscillator can be calibrated by pushing some buttons on the back. Wondering how they do that almost makes me want to buy a simple clock that is $100 per pound.

Re: [time-nuts] Heathkit clock available

Hi Nick: The GC-1000 was the clock that not only received and was set by WWV (or WWVH) but also had a disciplined oscillator(HFDO) at 3.6 MHz. http://www.prc68.com/I/HeathkitGC1000.shtml Tom: Have you made stability plots for the GC-1000 HFDO? I recently got a Saunders Assoc. 150B Crystal