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Why is there a time lapse between analogue and digital?

A wristwatch
  • Posted at 1:50pm
  • 06 September 2008
  • by DoctorDigital-RT

Q Perhaps sadly, I like my wristwatch to be correct to the second. But which final Radio 4 "pip" is the correct time? The one on analogue radio or the one via digital TV? There's a few seconds' difference.
Peter Ford, Frome, Somerset

A It's the analogue one - digital information takes a small amount of time to be encoded before broadcast, and then decoded by your digital receiver.

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