Reply With QuoteEither my Roberts atomic bedside clock radio or my Seiko atomic solar SBPG003 depending on which is closest.
Something slightly different but I thought it might prove interesting.
Me? Well I have a Casio waveceptor thingy, no idea what model number. However being an ardent vintage fan I couldn't really get enthusiastic about in in any way shape or form. So a bit of trawling on the bay for something more interesting resulted in me buying this.
Pic nicked from the net
A Junghans Mega 1 :). I've had it for a while now and the Casio has been confined to the sock draw. The Mega 1 is far more stylish and interesting and more importantly, it doesn't confuse my simple brain with functions I'll never use.
A bit of history from the National Maritime Museum website:
The Junghans 'Mega 1' wristwatch, introduced in 1990, was the world's first radio-controlled wristwatch. An antenna buried in the strap receives a long-wave radio signal every morning broadcast on 77.5 KHz (call-sign DCF) from Mainflingen, Frankfurt, carrying time information from Germany's national atomic clocks at Braunschweig. These radio transmissions automatically set the watch right. Similar watches and clocks are made which receive the UK's national time signal broadcast from Rugby, originating from the National Physical Laboratory in Teddington.
Since the earliest days of radio communications, it was realized that radio waves are an ideal means of distributing precise time. From January 1905, the US Navy broadcast regular time signals at Noon (Eastern Standard Time) from Washington, D.C. Germany and France followed suit in 1910, the French signal being transmitted from the Eiffel Tower at midnight.
These early time signals required a special receiver, but in 1922, with the first public radio broadcasts by the British Broadcasting Company, the opportunity was taken to provide precise time, with the announcer playing the Westminster chimes on a piano. Two years later the BBC introduced its six-pip time signal, the brainchild of electric clock manufacturer Frank Hope-Jones and the Astronomer Royal, Sir Frank Dyson.
From the early 1970s, battery-driven quartz clocks have been made which automatically correct themselves on a daily basis using one of the digitally coded time signals now broadcast across the world.
So the big question is what do you use?
Cheers,
Gary
Either my Roberts atomic bedside clock radio or my Seiko atomic solar SBPG003 depending on which is closest.
I use this: http://wwp.greenwichmeantime.co.uk/
Your way looks more fun though Gary :D
For those using the radio, bear in mind that digital radios have a buffer and as such aren't correct.
I use a Garmin 60CSx GPS device, which is accurate to within 1 second of UTC (as long as it has been on for more than 12.5 minutes to receive a full message including the UTC correction from TIA) or computers which have been synced using NTP. Properly managed NTP should be accurate to within a couple of milliseconds.
Got me a G-Shock Wave Ceptor Tough Solar. Always tells the right time, never needs a battery, hard to break. Perfect.
My atomic radio matches second for second with my atomic Seiko getting its signal from Cumbria.Originally Posted by Blapto
I just set em by Sky news time, simples :)
+1
Cheers
Simon
Ralph Waldo Emerson: We ask for long life, but 'tis deep life, or noble moments that signify. Let the measure of time be spiritual, not mechanical.
Why not use the Dreadnought at the top of the page ?
The clock on teletext
Andy
Wanted - Damasko DC57
Because my computer isn't as accurate as my cheapo Casio WaveCeptor. :wink:
Best Regards - Peter
I'd hate to be with you when you're on your own.
I was referring to the BBC pips broadcast/any other announced time service, rather than the time on the radio itself, sorry.My atomic radio matches second for second with my atomic Seiko getting its signal from Cumbria.
Radio (non-digital) pips or my B-1.
R
Ignorance breeds Fear. Fear breeds Hatred. Hatred breeds Ignorance. Break the chain.
Radio Leeds time signal at 8 AM whilst driving to work. I check the timekeeping of whatever watch I`m wearing.
Otherwise it's a cheap quartz thing that I used for running in the past.
Paul
Dr Who style? :wink:Otherwise it's a cheap quartz thing that I used for running in the past.
If so, I've got a shopping list fro you to pick up for me and a few bets to place! :lol:
I use http://www.exacttimenow.com.
I dial 1-2-3. You just can't beat the speaking clock IMO.
Slightly ridiculous perhaps, but during term-time I set them according to the school bells. I don't know what clock those are based on, but it's not particularly accurate and I'd rather rely on my watch than the radio-controlled clocks they have around the school, since those are always out with the school bell by an unknown amount.
Computer clock
i use http://www.time.gov for mine
I use my mobile phone...
When online I use:
http://www.timeticker.com/
Or, I use my Casio G-Shock GW-300, like the one below:
Time signal on Radio 2 - not everyday though, never been hugely fussed about the 'incredible accuracy' thing.
When you look long into an abyss, the abyss looks long into you.........
Heh... They're different (and not just by the timezone, the difference is about 1.5 seconds.)
I've got several radio synched clocks around the house, so I use one of those, or sometimes an atomic G-Shock.
Dave E
Skating away on the thin ice of a new day
The shropshire star :lol: its delivered at 4pm every day and it has a date function :wink:
paul. :D
Assuming your TV is digital this won't actually be accurate, it'll be out by a few seconds.
Of course whether this matters to you is another matter, but if you're a sad OCD type like me, it will. :D
I set mine using an atomic radio clock thing.
The odd thing is that when I put a watch on for the first time of wearing, I have to have it accurate absolutely to the second. But if I wear it for a day or a week or longer (rarely longer if I'm honest) I never recheck or reset it even though it's bound to be a second or two (or more) out after a few days.
i know, I'm odd.
Love the radio controlled digital watch Gary! 8)
This one:
That runs from the time set on your computer :D
Casio Waveceptor 5600 for now, I'd love a Mega though
+1 on the Roberts atomic clock radio. Can I ask if the antenna is buried in the strap what happens when you want to change straps.
The strap is unique to this particular model with built in end pieces and obviously the antenna. You have to replace it with a new Junghans strap, they're available on German ebay, not cheap though at about €50!
Cheers,
Gary
My computer clock. (Which is slaved to an NTP server.)
Best wishes,
Bob
Atomic G-Shock or radio controlled travel clock (they always seem to agree, so I use either!)
My trusty and unworn Casio Waveceptor bought from SC just for this purpose - nerdtastic!
Ceefax :)
Cheers,
Daddel.
Got a new watch, divers watch it is, had to drown the bastard to get it!
If I'm sat at the PC a cool little app called TimeRC that allows you to synchronise with time servers all over the world, obviously I use Switzerland :D
"I looked with pity not untinged with scorn upon these trivial-minded passers-by"
the pips on Radio4 (FM)
I used to be quite anal about to the second accuracy.. but i'm chillin' abit now.. 8)
same here....depending on what time i start (can be either 3am or 9am) its the pips for me
I'm lazy so just use my iphone!
One of these usually, must have had it for about 15-20 years, they even have one in the Science Museum:
OOh, my pet subject. ;)I was referring to the BBC pips broadcast/any other announced time service, rather than the time on the radio itself, sorry.My atomic radio matches second for second with my atomic Seiko getting its signal from Cumbria.
There are several sources of delay in the broadcast chain;
For digital radio, there is coding delay and the consequent decoding delay. This is mostly caused by interleaving and simple processing delays in the codecs. Add to this a good dose of delay introduced by the distribution system (either satellite feed or line feed) and the network synchronization delays added at the transmitter to ensure correct coverage and to prevent self-interference in the DAB network. In all, this adds up to something in the region of one to one and a half seconds, though the exact figure varies depending on where in the network you are and the precise behaviour of the receiver you are using.
For analogue radio, the main source of delays, IIRC, is in the digital distribution to the main transmitters...FM isn't too bad, being generally fed from NICAM tribs, though the digital network (RAMAN) feeding the AM sites can introduce significant, variable and unpredictable delays.
The best bet is to use one of the LF systems, like MSF or DCF.
Oh, and GPS timing isn't anywhere near as simple as you might think..."GPS Time" and UTC are considerably different!
Tra
JAson
I'm not that picky about what time it is.
I use one of these:
/CJ.
Frankfurt Atomic Watch (via GWM5600)
Set mine according to office wall clock at customer I'm currently stationed at.
Doesn't show the correct time but the important one. :roll:
Er,
I use the BBC teletext service :?
Andy
But predictably different, and corrected! You just have to leave your GPS system running long enough continuously to receive the corrections. Then the question becomes how well your hardware gets that information to you! A navigational device will be out by a few seconds simply because updating the clock on the screen isn't of the utmost importance with the limited processing power available. The device knows exactly what time it is though otherwise your fix would be wrong.OOh, my pet subject. ;)I was referring to the BBC pips broadcast/any other announced time service, rather than the time on the radio itself, sorry.My atomic radio matches second for second with my atomic Seiko getting its signal from Cumbria.
There are several sources of delay in the broadcast chain;
For digital radio, there is coding delay and the consequent decoding delay. This is mostly caused by interleaving and simple processing delays in the codecs. Add to this a good dose of delay introduced by the distribution system (either satellite feed or line feed) and the network synchronization delays added at the transmitter to ensure correct coverage and to prevent self-interference in the DAB network. In all, this adds up to something in the region of one to one and a half seconds, though the exact figure varies depending on where in the network you are and the precise behaviour of the receiver you are using.
For analogue radio, the main source of delays, IIRC, is in the digital distribution to the main transmitters...FM isn't too bad, being generally fed from NICAM tribs, though the digital network (RAMAN) feeding the AM sites can introduce significant, variable and unpredictable delays.
The best bet is to use one of the LF systems, like MSF or DCF.
Oh, and GPS timing isn't anywhere near as simple as you might think..."GPS Time" and UTC are considerably different!
Tra
JAson
There are GPS devices sold specifically to give the time to extremely high accuracy.
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