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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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Radio controlled clock question
How do these Radio controlled clocks supposed to work? I today bought a
cheap LCD rc alarm clock from Littlewoods but can't get the clock to automatically update to the correct time. The instructions say the clock updates itself at certain times of the day from the the signal via a transmitter in Rugby. There's also a manual "receive" button to start receiving the signal immediately if required (or as soon as the batteries are inserted). The "receive" indicator will flash for about 8 minutes but then goes out without updating the clock. I thought perhaps I may have bought a faulty clock so took it back and swapped it for another one but the same thing is happening. It's been about 3 hours now and still no correct time. Any ideas welcome? |
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Radio controlled clock question
The clock incorporates a radio receiver to receive the time signal, as you
say, from Rugby on 16kHz, very low frequency.I believe it is continuous, it is not a 'pips' type time signal but a complex signal containing time info which the clock/radio de-codes.Make sure you are not using it in a shielded area where radio waves can be attenuated,re-check the instructions etc. More info on Rugby Radio just put the name into Google. Mark Atherton "Mark" wrote in message ... How do these Radio controlled clocks supposed to work? I today bought a cheap LCD rc alarm clock from Littlewoods but can't get the clock to automatically update to the correct time. The instructions say the clock updates itself at certain times of the day from the the signal via a transmitter in Rugby. There's also a manual "receive" button to start receiving the signal immediately if required (or as soon as the batteries are inserted). The "receive" indicator will flash for about 8 minutes but then goes out without updating the clock. I thought perhaps I may have bought a faulty clock so took it back and swapped it for another one but the same thing is happening. It's been about 3 hours now and still no correct time. Any ideas welcome? |
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Radio controlled clock question
On Fri, 17 Oct 2003 15:15:11 +0100, "Mark"
wrote: How do these Radio controlled clocks supposed to work? I today bought a cheap LCD rc alarm clock from Littlewoods but can't get the clock to automatically update to the correct time. The instructions say the clock updates itself at certain times of the day from the the signal via a transmitter in Rugby. There's also a manual "receive" button to start receiving the signal immediately if required (or as soon as the batteries are inserted). The "receive" indicator will flash for about 8 minutes but then goes out without updating the clock. I thought perhaps I may have bought a faulty clock so took it back and swapped it for another one but the same thing is happening. It's been about 3 hours now and still no correct time. Any ideas welcome? The MSF transmitter at Rugby provides a time signal service on a very low (60kHz) frequency from a highly accurate atomic clock. IIRC, the time data are transmitted once per minute so it should not take more than a couple of minutes for the clock to synchronise. It's up to the clock to decide how it uses the signal, and it may choose to compare successive time codes before changing anything to reduce the risk that interference affects the setting. The signal is susceptible to local interference and the level may be low if you are a long way away. However it should be OK over most of the UK. You could try taking the clock outside on the side of the house that faces in the direction of Rugby and you could also try rotating the clock. Depending on the design, the built in antenna may be directional. It may simply be that the problem is in your first sentence ("cheap" and "Littlewoods") and you have a second dud clock..... ..andy To email, substitute .nospam with .gl |
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Radio controlled clock question
Mark
are the minutes correct?......if so you may need to manually adjust for time zone. |
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Radio controlled clock question
"Mark Atherton" wrote in message
... The clock incorporates a radio receiver to receive the time signal, as you say, from Rugby on 16kHz, very low frequency.I believe it is continuous, it is not a 'pips' type time signal but a complex signal containing time info which the clock/radio de-codes.Make sure you are not using it in a shielded area where radio waves can be attenuated,re-check the instructions etc. More info on Rugby Radio just put the name into Google. Mark Atherton I did wonder if perhaps I'm in an area where the signal's not getting through but I did try it during the 5 mile trip home in the car and still no update! Can't see that I'm doing anything wrong, Just press the receiving button to start a forced update. The instructions say the RCC symbol will flash for a maximum of 8 minutes and if signal is successful it will update the clock and the RCC symbol will become stationary - otherwise the RCC symbol will be off (which mine is after the maximum 8 minutes of trying). I will have a read up on the Rugby transmitter. |
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Radio controlled clock question
In article , Andy Hall
writes On Fri, 17 Oct 2003 15:15:11 +0100, "Mark" wrote: How do these Radio controlled clocks supposed to work? I today bought a cheap LCD rc alarm clock from Littlewoods but can't get the clock to automatically update to the correct time. The instructions say the clock updates itself at certain times of the day from the the signal via a transmitter in Rugby. There's also a manual "receive" button to start receiving the signal immediately if required (or as soon as the batteries are inserted). The "receive" indicator will flash for about 8 minutes but then goes out without updating the clock. I thought perhaps I may have bought a faulty clock so took it back and swapped it for another one but the same thing is happening. It's been about 3 hours now and still no correct time. Any ideas welcome? The MSF transmitter at Rugby provides a time signal service on a very low (60kHz) frequency from a highly accurate atomic clock. IIRC, the time data are transmitted once per minute so it should not take more than a couple of minutes for the clock to synchronise. It's up to the clock to decide how it uses the signal, and it may choose to compare successive time codes before changing anything to reduce the risk that interference affects the setting. I have got an Oregon Scientific MSF alarm clock, and it will only pick up MSF in certain areas of the house. My bedside table is a place it does not work! 10cm either way and it works. I would try leaving it in different places in the house, you will probably find the place you have it now is in an MSF "dead spot" or there is too much interference there. -- Tim Mitchell |
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Radio controlled clock question
Mark Atherton wrote:
The clock incorporates a radio receiver to receive the time signal, as you say, from Rugby on 16kHz, 60Khz I believe. very low frequency.I believe it is continuous, it is not a 'pips' type time signal but a complex signal containing time info which the clock/radio de-codes.Make sure you are not using it in a shielded area where radio waves can be attenuated,re-check the instructions etc. More info on Rugby Radio just put the name into Google. Mark Atherton "Mark" wrote in message ... How do these Radio controlled clocks supposed to work? I today bought a cheap LCD rc alarm clock from Littlewoods but can't get the clock to automatically update to the correct time. The instructions say the clock updates itself at certain times of the day from the the signal via a transmitter in Rugby. There's also a manual "receive" button to start receiving the signal immediately if required (or as soon as the batteries are inserted). The "receive" indicator will flash for about 8 minutes but then goes out without updating the clock. I thought perhaps I may have bought a faulty clock so took it back and swapped it for another one but the same thing is happening. It's been about 3 hours now and still no correct time. Any ideas welcome? |
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Radio controlled clock question
"Skip" wrote in message
... Mark are the minutes correct?......if so you may need to manually adjust for time zone. No, it just starts from the default 12 o'clock settings. I even tried manually adjusting the clock to close to the right time to give it a helping hand but it still refuses to budge on its own. |
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Radio controlled clock question
"Mark" wrote in message ... How do these Radio controlled clocks supposed to work? I today bought a cheap LCD rc alarm clock from Littlewoods but can't get the clock to automatically update to the correct time. The instructions say the clock updates itself at certain times of the day from the the signal via a transmitter in Rugby. There's also a manual "receive" button to start receiving the signal immediately if required (or as soon as the batteries are inserted). The "receive" indicator will flash for about 8 minutes but then goes out without updating the clock. I thought perhaps I may have bought a faulty clock so took it back and swapped it for another one but the same thing is happening. It's been about 3 hours now and still no correct time. Any ideas welcome? I changed the batteries in my r/c clock last weekend & it took a few hours before it picked up the Rugby signal. It tries to sync every hour. Just leave it near a window overnight & forget about it. JW |
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Radio controlled clock question
In article , Mark
wrote: How do these Radio controlled clocks supposed to work? I today bought a cheap LCD rc alarm clock from Littlewoods but can't get the clock to automatically update to the correct time. I've got one on which you need to set the time manually to the nearest hour before the current time and then it adjusts itself on the next time pulse. It's quite uncanny to watch the second hand moving round on the time pips and hitting the 12 spot on -- Tony Bryer SDA UK 'Software to build on' http://www.sda.co.uk Free SEDBUK boiler database browser http://www.sda.co.uk/qsedbuk.htm |
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Radio controlled clock question
On 17 Oct 2003, Mark wrote
How do these Radio controlled clocks supposed to work? I today bought a cheap LCD rc alarm clock from Littlewoods but can't get the clock to automatically update to the correct time. -snip- Any ideas welcome? I suspect that out of sheer rotten luck you've hit an outage during the annual maintenance period -- my bedside clock hasn't updated since about 9 am this morning. This shouldn't last more than a day, though: take a look at the NPL outages page at http://www.npl.co.uk/time/msfoutages.html: that notes that this year's annual maintenance fortnight is 6 - 20 October, and that: Usually during annual maintenance periods it is likely that the service will be interrupted, although these outages will be kept to a minimum. The service is restored overnight between 2000 BST and 0800 BST whenever possible. So: leave it overnight, and see if it picks up the signal. HTH -- Cheers, Harvey For e-mail, change harvey to whhvs. |
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Radio controlled clock question
"Andy Hall" wrote in message
... On Fri, 17 Oct 2003 15:15:11 +0100, "Mark" It may simply be that the problem is in your first sentence ("cheap" and "Littlewoods") and you have a second dud clock..... I'll give it till tomorrow and get a refund if now't happens. |
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Radio controlled clock question
In article ,
Mark wrote: How do these Radio controlled clocks supposed to work? I today bought a cheap LCD rc alarm clock from Littlewoods but can't get the clock to automatically update to the correct time. The instructions say the clock updates itself at certain times of the day from the the signal via a transmitter in Rugby. There's also a manual "receive" button to start receiving the signal immediately if required (or as soon as the batteries are inserted). The "receive" indicator will flash for about 8 minutes but then goes out without updating the clock. It's possible it's not receiving the signal. Mine shows a steady 'receive' indication when things are ok, flashes when it's not happy, and goes out completely when the signal is lost. I'd say mine is sited well to receive an LF signal but still shows no signal at times - perhaps you could try moving yours to see if it works ok elsewhere. -- *Why is the man who invests all your money called a broker? * Dave Plowman London SW 12 RIP Acorn |
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Radio controlled clock question
On 17 Oct 2003, Mark wrote
"Andy Hall" wrote in message ... On Fri, 17 Oct 2003 15:15:11 +0100, "Mark" It may simply be that the problem is in your first sentence ("cheap" and "Littlewoods") and you have a second dud clock..... I'll give it till tomorrow and get a refund if now't happens. Sounds wise. Given the "outages" link in my other post and my clock's failure to reset itself, it would be interesting to know if anyone has successfully had a radio-controlled clock reset itself since around 9 this morning. -- Cheers, Harvey For e-mail, change harvey to whhvs. |
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Radio controlled clock question
"Harvey Van Sickle" wrote in message
I'll give it till tomorrow and get a refund if now't happens. Sounds wise. Given the "outages" link in my other post and my clock's failure to reset itself, it would be interesting to know if anyone has successfully had a radio-controlled clock reset itself since around 9 this morning. Yes thanks for the link. Looks like problems solved. Still no update but I rang the number on the NPL site and a recorded message confirmed the MSF signal was down from 9am 6th Oct until 9am 20th Oct, but will be working overnight whenever possible. |
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Radio controlled clock question
On 17 Oct 2003, Mark wrote
"Harvey Van Sickle" wrote in message Given the "outages" link in my other post and my clock's failure to reset itself, it would be interesting to know if anyone has successfully had a radio-controlled clock reset itself since around 9 this morning. Yes thanks for the link. Looks like problems solved. Still no update but I rang the number on the NPL site and a recorded message confirmed the MSF signal was down from 9am 6th Oct until 9am 20th Oct, but will be working overnight whenever possible. Excellent -- I hope mine updates as well! -- Cheers, Harvey For e-mail, change harvey to whhvs. |
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Radio controlled clock question
On Fri, 17 Oct 2003 14:15:11 UTC, "Mark" wrote:
How do these Radio controlled clocks supposed to work? The Rugby transmitter sends a continuous time signal. It takes exactly one minute to send the time *once*. Most clocks try to receive two or three consecutive signals, with time values that differ by one minute, before they commit to updating the clock itself. So, a weak signal can mean they don't ever update, and even a string one will take three or four minutes. Bear in mind this is long wave. It's subsceptible to nearby metallic objects, so try moving the clock around the room and trying again. Try it upstairs too. Some of them have pretty useless antenna systems. Try also taking it upstairs! -- Bob Eager rde at tavi.co.uk PC Server 325*4; PS/2s 9585, 8595, 9595*2, 8580*3, P70... |
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Radio controlled clock question
On Fri, 17 Oct 2003 16:02:52 +0100, "Mark"
wrote: I did wonder if perhaps I'm in an area where the signal's not getting through but I did try it during the 5 mile trip home in the car and still no update! Being low frequency it won't have a problem going round corners because the signal bounces off the upper atmosphere, whereas with high frequency (FM, VHF, TV etc) you have to have line of sight. They use low frequency to communicate with submarines on the other side of the world from Northwood in north London (the signal might go out from Rugby though - I don't know the details). A sub can receive signals at periscope depth, as happened in the Falklands when HMS Conqueror was told to take out Belgrano by Northwood (the instruction was issued from Downing Street). Leastways, that's what was explained to me a few years back. So if I'm right then the submarine will always have an accurate clock.... RCC symbol will flash for a maximum of 8 minutes and if signal is successful it will update the clock and the RCC symbol will become stationary - otherwise the RCC symbol will be off (which mine is after the maximum 8 minutes of trying). I will have a read up on the Rugby transmitter. I've got one of those radio clocks sitting on my desk. Every so often the receiving signal flashes for a period of time when it updates itself. I don't have a problem with the clock being wrong. Are you sure you haven't got it set to some other time zone? You need GMT in the UK. PoP |
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Radio controlled clock question
On 17 Oct 2003, PoP wrote
-snip- I've got one of those radio clocks sitting on my desk. Every so often the receiving signal flashes for a period of time when it updates itself. I don't have a problem with the clock being wrong. Are you sure it's been able to reset itself during the day, today? As noted in my other posts, the NPL site says the Rugby transmitter is on annual maintenance from 6 to 20 October, with signal transmission probably out from 9 am to 9 pm. (There's an indicator on my clock that shows if the hourly update was successful, and if not how many hours it's been since the last update was made: that's now sitting at 8 hours missed, and since it's currently 17:30, it must have last updated at 8 am, in line with what the NPL site says.) -- Cheers, Harvey For e-mail, change harvey to whhvs. |
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Radio controlled clock question
In article ,
"Bob Eager" writes: On Fri, 17 Oct 2003 14:15:11 UTC, "Mark" wrote: How do these Radio controlled clocks supposed to work? The Rugby transmitter sends a continuous time signal. It takes exactly one minute to send the time *once*. The signal is transmitted at 1 bit per second, represented by a 100ms or 200ms break in the carrier IIRC. I built a rugby clock receiver about 12 years ago, together with a driver for Interactive UNIX for it to keep the system clock in sync. If you arrange for the breaks in the carrier to cause an audiable tone, it's quite easy to decode it by ear. I sat up on a few occasions to listen to it handling the daylight savings shift (not sure I should admit things like this;-). For some years (certainly when I built my receiver 12 years ago), there was also a fastcode transmission in the last second of each minute which encoded much (maybe all) of the data again within that second. I vaguely recall hearing they have since dropped the fastcode transmission. -- Andrew Gabriel |
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Radio controlled clock question
In article ,
Tony Bryer wrote: It's quite uncanny to watch the second hand moving round on the time pips and hitting the 12 spot on You don't have DAB, then? -- *Very funny Scotty, now beam down my clothes. Dave Plowman London SW 12 RIP Acorn |
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Radio controlled clock question
"PoP" wrote in message ... On Fri, 17 Oct 2003 16:02:52 +0100, "Mark" wrote: I did wonder if perhaps I'm in an area where the signal's not getting through but I did try it during the 5 mile trip home in the car and still no update! Being low frequency it won't have a problem going round corners because the signal bounces off the upper atmosphere, whereas with high frequency (FM, VHF, TV etc) you have to have line of sight. They use low frequency to communicate with submarines on the other side of the world from Northwood in north London (the signal might go out from Rugby though - I don't know the details). A sub can receive signals at periscope depth, as happened in the Falklands when HMS Conqueror was told to take out Belgrano by Northwood (the instruction was issued from Downing Street). Leastways, that's what was explained to me a few years back. So if I'm right then the submarine will always have an accurate clock.... RCC symbol will flash for a maximum of 8 minutes and if signal is successful it will update the clock and the RCC symbol will become stationary - otherwise the RCC symbol will be off (which mine is after the maximum 8 minutes of trying). I will have a read up on the Rugby transmitter. I've got one of those radio clocks sitting on my desk. Every so often the receiving signal flashes for a period of time when it updates itself. I don't have a problem with the clock being wrong. Are you sure you haven't got it set to some other time zone? You need GMT in the UK. PoP 1. They work on a LOW radio frequency 60KHz, you need a location with little radio interferance. Go find a Longwave radio, and make sure you can recive Radio 4 ok. Try the clock outside. |
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Radio controlled clock question
"Andrew Gabriel" wrote in message ... In article , "Bob Eager" writes: On Fri, 17 Oct 2003 14:15:11 UTC, "Mark" wrote: How do these Radio controlled clocks supposed to work? The Rugby transmitter sends a continuous time signal. It takes exactly one minute to send the time *once*. The signal is transmitted at 1 bit per second, represented by a 100ms or 200ms break in the carrier IIRC. I built a rugby clock receiver about 12 years ago, together with a driver for Interactive UNIX for it to keep the system clock in sync. If you arrange for the breaks in the carrier to cause an audiable tone, it's quite easy to decode it by ear. I sat up on a few occasions to listen to it handling the daylight savings shift (not sure I should admit things like this;-). For some years (certainly when I built my receiver 12 years ago), there was also a fastcode transmission in the last second of each minute which encoded much (maybe all) of the data again within that second. I vaguely recall hearing they have since dropped the fastcode transmission. -- Andrew Gabriel Yes Fast Code has been droped and MSF is currently OFF AIR |
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Radio controlled clock question
"Mark" wrote in message ... How do these Radio controlled clocks supposed to work? I today bought a cheap LCD rc alarm clock from Littlewoods but can't get the clock to automatically update to the correct time. The instructions say the clock updates itself at certain times of the day from the the signal via a transmitter in Rugby. There's also a manual "receive" button to start receiving the signal immediately if required (or as soon as the batteries are inserted). The "receive" indicator will flash for about 8 minutes but then goes out without updating the clock. I thought perhaps I may have bought a faulty clock so took it back and swapped it for another one but the same thing is happening. It's been about 3 hours now and still no correct time. Any ideas welcome? The MSF Annual Maintenance Period in 2003 The MSF 60 kHz transmitter system at the BT Rugby Radio Station will be shut down for maintenance for the following period: From 0800 UTC Monday 6 October 2003 to 0800 UTC Monday 20 October 2003. Please note that the scheduled outage for maintenance on Tuesday 7 October 2003 falls within this period. Usually during annual maintenance periods it is likely that the service will be interrupted, although these outages will be kept to a minimum. The service is restored overnight between 2000 BST and 0800 BST whenever possible. |
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Radio controlled clock question
Some of these time clocks originate from Europe and use the German DCF
(MSF Rugby equivalent) as the transmitting station (on a different frequency) Nick |
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Radio controlled clock question
In message ,
Dave Plowman wrote: In article , Mark wrote: How do these Radio controlled clocks supposed to work? I today bought a cheap LCD rc alarm clock from Littlewoods but can't get the clock to automatically update to the correct time. The instructions say the clock updates itself at certain times of the day from the the signal via a transmitter in Rugby. There's also a manual "receive" button to start receiving the signal immediately if required (or as soon as the batteries are inserted). The "receive" indicator will flash for about 8 minutes but then goes out without updating the clock. It's possible it's not receiving the signal. Mine shows a steady 'receive' indication when things are ok, flashes when it's not happy, and goes out completely when the signal is lost. I'd say mine is sited well to receive an LF signal but still shows no signal at times - perhaps you could try moving yours to see if it works ok elsewhere. The radio station at which I used to work had a very fancy Rugby receiving clock. Several hundred pounds worth. Of course, this was purchased in the days before you could get one for a tenner from Argos. It sat in Racks and had an external antenna that had to be placed as nearly outside the building as possible as VLF is easily blocked by structure (look at the way R4 LW disappears briefly as you pass underneath motorway bridges. That's at 198kHz, so 60kHz is worse.) The main point of it was to keep all the clocks in the building precisely synchronised with each other. It was nice if they also synchronised with the NPL! To this end it had a serial line daisy-chained to a clock in each studio. It had its own battery backup in case of mains failure (so that you wouldn't have to wait 5 minutes for it to reset itself), it also had its own, laser-trimmed quartz crystal clock so that if Rugby went off air for an extended period (the annual maintenance *might* take it off for the complete 2 weeks rather than off in the day and on in the night) it could keep very accurate time, and each studio clock also had its own quartz movement so that if the main clock failed, you had a couple of days before they became more than a second or two out of synch. It used to confuse the overnight jocks by fast-forwarding at GMT/BST changes! One presenter was severely lacking in the sight-department and as soon as stand-alone clocks became available we had to buy a couple (at about £40 each ISTR) so that we could put one on the desk next to him. For some reason it seemed to get the signal better inside the building than the "big" clock in Racks did! Just a fun story... Hwyl! M. -- Martin Angove: http://www.tridwr.demon.co.uk/ Don't fight technology, live with it: http://www.livtech.co.uk/ .... As far as we know, our computer has never had an undetected error. |
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Radio controlled clock question
"froggers" wrote in message ... Some of these time clocks originate from Europe and use the German DCF (MSF Rugby equivalent) as the transmitting station (on a different frequency) Nick I got one the other day from Aldi (or was it Lidl) for £3.99 and it works a treat of DCF on 77KHz - even on the floor of the car (before got it home. -- Woody |
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Radio controlled clock question
"Martin Angove" wrote
| The radio station at which I used to work had a very fancy | Rugby receiving clock. Several hundred pounds worth. Of | course, this was purchased in the days before you could | get one for a tenner from Argos. It sat in Racks It wasn't a Wharton was it? I used to salivate looking at the Wharton clocks in the catalogue. ..... | It used to confuse the overnight jocks by fast-forwarding at GMT/BST | changes! I can remember when the studio clock was stuck during a late night programme phoning the porter's desk asking them what the time was (on the asusmption that if you want to know anything you asked a porter). "Are you having a bleedin' laugh sonny?" "No I'm on air and the clock has broken and I need to reset it before the next record finishes" Owain |
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Radio controlled clock question
On Fri, 17 Oct 2003 17:20:27 +0100, PoP wrote:
They use low frequency ... Very Low Frequency, VLF, 16kHz. ... to communicate with submarines on the other side of the world from Northwood in north London (the signal might go out from Rugby though - I don't know the details). The time standard, MSF, on 60kHz is the only signal transmitted from the BT site at Rugby now. I think most of the masts have or are about to be removed apart from the single MSF mast. One of the 16kHz transmitter sites for subs etc was at Criggion, but that has been closed and the masts removed. Take a peek at http://www.subbrit.org.uk/sb-sites/s...io/index.shtml. -- Cheers Dave. pam is missing e-mail |
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Radio controlled clock question
"harrogate" wrote in message ... "froggers" wrote in message ... Some of these time clocks originate from Europe and use the German DCF (MSF Rugby equivalent) as the transmitting station (on a different frequency) Nick I got one the other day from Aldi (or was it Lidl) for £3.99 and it works a treat of DCF on 77KHz - even on the floor of the car (before got it home. -- Woody You might have to place it next to window or even outside for a while to make sure it is picking up the signal properly. If this doesn't help matters, then take it back and get a refund 'cause it's a duff radio. |
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Radio controlled clock question
In article ,
froggers wrote: Some of these time clocks originate from Europe and use the German DCF (MSF Rugby equivalent) as the transmitting station (on a different frequency) Mine is switchable, and of course won't be on BST in this mode. It also goes to a 24 hour display - which I'd actually prefer. -- *Organized Crime Is Alive And Well; It's Called Auto Insurance. Dave Plowman London SW 12 RIP Acorn |
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In message , Mark
writes I did wonder if perhaps I'm in an area where the signal's not getting through but I did try it during the 5 mile trip home in the car and still no update! Can't see that I'm doing anything wrong, Just press the receiving button to start a forced update. The instructions say the RCC symbol will flash for a maximum of 8 minutes and if signal is successful it will update the clock and the RCC symbol will become stationary - otherwise the RCC symbol will be off (which mine is after the maximum 8 minutes of trying). I will have a read up on the Rugby transmitter. Well , I have one which I got in Germany years ago, which uses the Frankfurt time signal, which must be at least 500 miles away. It works fine and I have no problem with the signal - you must be in some sort of faraday cage -- geoff |
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Radio controlled clock question
On Sat, 18 Oct 2003 01:15:58 +0100, geoff wrote:
Well , I have one which I got in Germany years ago, which uses the Frankfurt time signal, which must be at least 500 miles away. So do I - a Phillips. It has the best alarm time setting interface I've ever used (a speed sensitive wheel) and has only one problem - it's resolutely accurate to the squillisecond, only an hour ahead. There's no way to move it off the German time zone ! It works fine and I have no problem with the signal - you must be in some sort of faraday cage It would be an incredible Faraday cage to stop 60kHz (my house is infamously proof against GHz radio, but nothing is proof against this sort of LW), but it is sensitive to all manner of interference from electrical gear. Try leaving it on the top floor of the house, until it synchronises. -- Die Gotterspammerung - Junkmail of the Gods |
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"Dave Plowman" wrote in message ... In article , froggers wrote: Some of these time clocks originate from Europe and use the German DCF (MSF Rugby equivalent) as the transmitting station (on a different frequency) Mine is switchable, and of course won't be on BST in this mode. It also goes to a 24 hour display - which I'd actually prefer. -- *Organized Crime Is Alive And Well; It's Called Auto Insurance. Dave Plowman London SW 12 RIP Acorn Curiosly mine is DCF - it says so on the box - but it shows UK time! Hmmm..... -- Woody |
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Radio controlled clock question
"geoff" wrote in message
... Well , I have one which I got in Germany years ago, which uses the Frankfurt time signal, which must be at least 500 miles away. It works fine and I have no problem with the signal - you must be in some sort of faraday cage Everything is ok and working fine now. I checked at around 7pm last night and it had updated itself to the correct time, so it must have been due to the maintenance work on the transmitter. As previously mentioned, the maintenance work is scheduled to complete on the 20th Oct so there will probably be more downtime until them. Thanks for all the replies. |
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Radio controlled clock question
"harrogate" wrote in message
... I got one the other day from Aldi (or was it Lidl) for £3.99 and it works a treat of DCF on 77KHz - even on the floor of the car (before got it home. I was after one of the Lidl weather stations in last weeks special offers. I'm not sure if it also had a built in RC clock but even so it was a great buy at £9.99. Unfortunately they sold out before I could get down. |
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Radio controlled clock question
In message ,
"Owain" wrote: "Martin Angove" wrote | The radio station at which I used to work had a very fancy | Rugby receiving clock. Several hundred pounds worth. Of | course, this was purchased in the days before you could | get one for a tenner from Argos. It sat in Racks It wasn't a Wharton was it? I used to salivate looking at the Wharton clocks in the catalogue. .... No, it was from a company called, predictably enough, Radiocode Clocks. I believe they're still available from the likes of Canford :-) Hwyl! M. -- Martin Angove: http://www.tridwr.demon.co.uk/ Don't fight technology, live with it: http://www.livtech.co.uk/ .... Constant change is here to stay. |
#39
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Radio controlled clock question
In article ,
"froggers" wrote: Some of these time clocks originate from Europe and use the German DCF (MSF Rugby equivalent) as the transmitting station (on a different frequency) Some of these time clocks allow you to use German, UK, Japanese, US stations at will. |
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Radio controlled clock question
In article , Dave
Liquorice writes On Fri, 17 Oct 2003 17:20:27 +0100, PoP wrote: They use low frequency ... Very Low Frequency, VLF, 16kHz. ... to communicate with submarines on the other side of the world from Northwood in north London (the signal might go out from Rugby though - I don't know the details). The time standard, MSF, on 60kHz is the only signal transmitted from the BT site at Rugby now. I think most of the masts have or are about to be removed apart from the single MSF mast. Don't they transmit Radio4 LW still from there? (also isn't it actually Droitwich rather than Rugby?) -- Tim Mitchell |
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