ISTR that the Plesiochronous Digital Hierarchy of BT ran
via a single master oscillator.

But that's the M3 for you - no technical qualification to
prove his worth as a Radio Ham.

class_a_zpk_12wpm .uk.net
wrote in message ...
On Wed, 15 Oct 2003 14:12:58 GMT, Andy Cowley
wrote:
Balderdash. The world of telecommunications doesn't run on a single
master
oscillator. Never has, never will. Clocks are commonly recovered from the
Dear M3ABC
I really think that you should have that HUMOUR (HUMOR) DETECTOR
of yours looked at by a QUALIFIED person as it seems to be slightly
off tune by perhaps a few Hertz which might indicate that its master
oscillator is in need of an adjustment.