On Thu, 22 Sep 2016 13:26:16 -0700, Simon Mason wrote:

On Thursday, 22 September 2016 21:22:21 UTC+1, Bob Eager wrote:
On Thu, 22 Sep 2016 13:12:19 -0700, Simon Mason wrote:

On Thursday, 22 September 2016 21:01:14 UTC+1, Bob Eager wrote:

It only uses the radio for checks - it's an atomic clock.

So is mine - it is linked by radio signals to the Cs/Rb atomic
clocks on the Navstar satellites. £1300 is very cheap technology.

Yours doesn't have an atomic clock in it.

Your mobile phone does not have a cable that connects it to
Australia,
but the phone mast does.

I bet it doesn't work underground where there is no signal.

Much like a mobile phone then.

Exactly. The Hoptroff scores over your cheap watch because it can
maintain accurate time without a mobile phone, once set.


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