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.

Here, I have a couple of analogue display and a couple of digital display "radio clocks". The digital are both about a quarter of a second slow, and the two analogue display clocks are spot-on, as near a damn it.

I'm located in Edinburgh and using the Anthorn 60KHz souce:
 
http://www.npl.co.uk/science-technology/time-frequency/time/products-and-services/msf-radio-time-signal

BTW: the "pips" went missing recently:
 http://www.bbc.co.uk/news/uk-13610203

Hope that helps.

Cheers,
David
--
SatSignal software - quality software written to your requirements
Web:  http://www.satsignal.eu
Email: [email protected]

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