On Mon, Jan 05, 2004 at 01:16:24AM +0100, Arnt Karlsen wrote: > On Sun, 4 Jan 2004 21:52:57 +0000, > Pigeon <[EMAIL PROTECTED]> wrote in message > <[EMAIL PROTECTED]>: > > with), as long as you're in the right country; at least in the UK, the > > frequency is legally required to average out to exactly 50Hz in a > > 24-hour period. > > ..huh? I thought the idea was to stick as close to 50Hz as possible? > On having some heavy gear hop onto the grid, the load slows it to > say 49.99Hz, so promptly feeding more power onto the grid to bring > it back up to 50Hz, is done. But you brits have to hike it up to say > 50.01Hz for a while "to catch up lost clock time"??? > That too, is outside the 50Hz ideal.
It's wider than that... a +/-1% variation is allowed, ie. 49.5Hz-50.5Hz. Nothing really bothers about such a variation... except in the bad old days when record companies' mastering turntables were mains-locked, so you could end up with LPs whose pitch was up to 1% out (a semitone is about 5.9%). -- Pigeon Be kind to pigeons Get my GPG key here: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x21C61F7F
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