[time-nuts] GPS disciplined mechanical clocks

Ron Smith ronald.p.smith at btinternet.com
Wed Mar 4 19:33:28 UTC 2009

Hi Steve,

Have you thought about locking the "cuckoo" call to GPS? I don't know how 
that call is generated, but I guess it wouldn't be too difficult to control 


----- Original Message ----- 
From: "Steve Rooke" <sar10538 at gmail.com>
To: "Discussion of precise time and frequency measurement" 
<time-nuts at febo.com>
Sent: Wednesday, March 04, 2009 11:52 AM
Subject: [time-nuts] GPS disciplined mechanical clocks

> Has anyone looked at locking an old mechanical clock to precise time?
> What I'm thinking of is something like an old cuckoo clock. The rule
> is that the clock remains basically standard and is only steered by
> the external source, say, by a magnetic pulse to the pendulum, IE. no
> physical connection. Obviously the correct period of the pulse would
> have to fit the timing of the pendulum. OK, it seems pointless as you
> can't read time with any real accuracy on something like a cuckoo
> clock but I'm sure there is the likelihood of something like this
> being done by someone like us.
> 73,
> Steve
> -- 
> Steve Rooke - ZL3TUV & G8KVD & JAKDTTNW
> Omnium finis imminet
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