Re: [time-nuts] The future of UTC
The problem is: multiple users in a wide area application, where manual reset of the new time is required - and some don't bother.. I have to process CCTV images from a wide range of separate, individual organisations, over whom I have no control. Some of them do a reset, others do not. Twice per year a lot of my time is wasted sorting out who has gone to DST (or vice versa) and who hasn't. Just as some users realise their system time is out by one hour, it's the time of year to change again! Automatic resets are the answer, but the smaller cheap-skate organisations will not spend the money. As soon as this illogical twice-yearly fiasco is ended, the better. Daylight Saving Time is a misnomer anyway - it's really Daylight Shifting Time. If you want more daylight, get out of bed earlier. Hate DST, keep UTC Universal. Ron The One - Original Message - From: Jim Palfreyman jim77...@gmail.com To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Friday, July 22, 2011 8:19 AM Subject: Re: [time-nuts] The future of UTC Mr HeathKid, What is your reason for hating dst. The changeover is a pain - but after that, what is the problem? Jim On 22 July 2011 14:23, Heathkid heath...@heathkid.com wrote: I live at 39° 57' 46 N and I absolutely HATE DST! Yes, Indiana... we haven't had DST for too long. It's bad and I hope some day we go back to not having it. - Original Message - From: Rob Kimberley r...@timing-consultants.com To: 'Discussion of precise time and frequency measurement' time-nuts@febo.com Sent: Tuesday, July 19, 2011 1:57 PM Subject: Re: [time-nuts] The future of UTC My earlier reply about flexible working practices still holds. Why not just move with the seasons. Before clocks, I'm sure that's what we did - we got up when it was light, and went to bed when it was dark. The bit in between just happens to be elastic... I live at 53 degrees North in the UK by the way. Rob K -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-bounces@**febo.comtime-nuts-boun...@febo.com] On Behalf Of Jim Palfreyman Sent: 19 July 2011 1:58 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] The future of UTC Far out. I've just read so many logical fallacies and government conspiracies I'm embarrassed for this high quality list. Let's inject some facts here. I live at 43 degrees south. At the winter solstice (June 21) the sun rises at 7:41 and sets at 16:43. At the summer solstice (December 21) the sun rises (no DST) at 04:28 and sets at 19:49. Sunrise at 04:28 is ridiculous. Including twilight it starts getting light at 3:30. Switch to DST and sunrise moves to 05:28 and sets at 20:49. Much more reasonable. Nice summer evenings too. We have DST for 6 months of the year and wouldn't swap it for anything. I understand it's different the closer to the equator you are, but for mid latitudes it really works. Jim On Tuesday, 19 July 2011, Thomas A Frank ka2...@cox.net wrote: BLOCK: This may be kind of an urban legend, but I thought I had heard that one of the backers behind extending Daylight Saving Time into the beginning of November was the candy industry, and it all had to do with Halloween. Mr. DOWNING: This is no kind of legend. This is the truth. For 25 years, candy-makers have wanted to get trick-or-treat covered by Daylight Saving, figuring that if children have an extra hour of daylight, they'll collect more candy. In fact, they went so far during the 1985 hearings on Daylight Saving as to put candy pumpkins on the seat of every senator, hoping to win a little favor. I would say it backfired. At least here in Rhode Island, the extra daylight resulted in the compression of the trick or treating schedule, since all the little goblins and ghouls wanted to go out after dark (to better scare the homeowners and enjoy their glow in the dark costumes), but they also were expected home by 8pm (local). Net result is less candy given out. At least that has been my experience. Proving you shouldn't tamper with time. Measure yes, tamper, no. :-) Tom Frank, KA2CDK __**_ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/**mailman/listinfo/time-nutshttps://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. __**_ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/**mailman/listinfo/time-nutshttps://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. __**_ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/** mailman/listinfo/time-nutshttps://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions
Re: [time-nuts] How accurate are cheap radio controlled clocks?
David, I think Radio 4 on 198 kHz is straight through analogue - no digital buffering with its inherent delays. Yesterday afternoon (1200 UTC I think), I listened to the BBC pips from Droitwich at the same time as the pips from RWM on 9,996 kHz, and I watched the second-hand of my Steiger radio-controlled clock. All three were in exact synchronism - no error between them, as closely as the ear and the eye could tell. Are there different ways these radio-controlled clocks are synched to time signals? I have never seen any perceivable error between my clocks and analogue broadcast pips from MSF, RWM or WWV, so I don't think the synch scheme is a corrective one. I will try keeping one of my clocks in a Faraday screen for a while to see how far it drifts in terms of time. I know of the other two 198 kHz transmitters at Westerglen and Burghead, but don't know whether they have the same accuracy as Droitwich's frequency standard. Do they carry the same phase modulation as Droitwich for teleswitching? Ron, G3SVW Manchester - Original Message - From: Dr. David Kirkby david.kir...@onetel.net To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Sunday, June 26, 2011 3:22 PM Subject: Re: [time-nuts] How accurate are cheap radio controlled clocks? On 06/26/11 07:25 AM, David J Taylor wrote: I've got one of the cheap radio-controlled clocks? I was listing to radio 4 the other day and herd the time signal. The radio controlled clock was about 3 seconds off. I was a bit surprised it was so far off. I'm just wondering how accurate these things are. David, Be aware that if listening via digital radio (or worse, digital TV) there is a delay in the transmission chain of up to several seconds (DTV). I expect you know that already! Use the FM signal for best results. I was using 198.00 kHz longwave here in the UK. Unless there's some digital processing going on before the signal is AM modulated, this can't explain the problem. -- A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail? ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] How accurate are cheap radio controlled clocks?
I have two r-c clocks in the house and they both keep accurate time. One clock is made by KLIK, the other by STAIGER - both from ARGOS. The second-hand moves at the very moment I hear the pip, or as exactly as the eye can tell. But I do not use Radio 4. Instead I check my times using the pip sequence from RWM's time service broadcasts on either 4.996 or 9.996 MHz (good signal strengths in UK). There is a danger with broadcasters these days that their studio source goes through digital buffering and will be subject to delays. The time difference between identical broadcasts via analogue circuits and digital circuits is in the order of two seconds. BBC time pip accuracy can be checked by listening to them at the same time as listening to RWM. Ron G3SVW - Original Message - From: Dr. David Kirkby david.kir...@onetel.net To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Saturday, June 25, 2011 8:19 PM Subject: [time-nuts] How accurate are cheap radio controlled clocks? I've got one of the cheap radio-controlled clocks? I was listing to radio 4 the other day and herd the time signal. The radio controlled clock was about 3 seconds off. I was a bit surprised it was so far off. I'm just wondering how accurate these things are. -- A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail? ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] GPS disciplined mechanical clocks
Hi Steve, Have you thought about locking the cuckoo call to GPS? I don't know how that call is generated, but I guess it wouldn't be too difficult to control electronically. Ron G3SVW - Original Message - From: Steve Rooke sar10...@gmail.com To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Wednesday, March 04, 2009 11:52 AM Subject: [time-nuts] GPS disciplined mechanical clocks Has anyone looked at locking an old mechanical clock to precise time? What I'm thinking of is something like an old cuckoo clock. The rule is that the clock remains basically standard and is only steered by the external source, say, by a magnetic pulse to the pendulum, IE. no physical connection. Obviously the correct period of the pulse would have to fit the timing of the pendulum. OK, it seems pointless as you can't read time with any real accuracy on something like a cuckoo clock but I'm sure there is the likelihood of something like this being done by someone like us. 73, Steve -- Steve Rooke - ZL3TUV G8KVD JAKDTTNW Omnium finis imminet ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] TRAK 8810
Hello Ian, Whereabouts are you? I travel to that area every month or so, around Dunbar and Berwick. Ron - Original Message - From: Ian Sheffield [EMAIL PROTECTED] To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Friday, September 12, 2008 9:27 AM Subject: Re: [time-nuts] TRAK 8810 At least one in South East Scotland! Cheers, Ian. - Original Message - From: Ron Smith [EMAIL PROTECTED] To: time-nuts@febo.com Sent: Thursday, September 11, 2008 8:05 PM Subject: [time-nuts] TRAK 8810 Hi everyone, I've been reading the traffic for months now, but never put anything in before - I'm not working at the high level most of you people are. So this is my first mail and it's a call for information and advice. It relates to equipment TRAK 8810, which I don't recall seeing mentioned on the group. Can anyone tell me about this gear please - its functions, performance, reliability, origins, years in service, value, et cetera? Is it useful to a beginner time-nut? Clint (VK3CSJ) raised an interesting question - how many subscribers are there on time-nuts? There must be a lot judging from the traffic. Anyone in NW England? 73 Ron, G3SVW Manchester, NW UK ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.169 / Virus Database: 270.6.20/1666 - Release Date: 9/11/2008 07:03 ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] TRAK 8810
Hi everyone, I've been reading the traffic for months now, but never put anything in before - I'm not working at the high level most of you people are. So this is my first mail and it's a call for information and advice. It relates to equipment TRAK 8810, which I don't recall seeing mentioned on the group. Can anyone tell me about this gear please - its functions, performance, reliability, origins, years in service, value, et cetera? Is it useful to a beginner time-nut? Clint (VK3CSJ) raised an interesting question - how many subscribers are there on time-nuts? There must be a lot judging from the traffic. Anyone in NW England? 73 Ron, G3SVW Manchester, NW UK ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
