[time-nuts] GPS antenna installation problem
tractorb at ihug.co.nz
Thu Mar 5 10:48:14 UTC 2009
For all those out there who don't have your own BPO 36 master clock,
here is a youtube video that shows the detail of the Hipp toggle in
action. The Hipp is the key to these clocks excellent time keeping.
Yes I know, the sound track IS horrible! But you can hear most of the
ticks... Not my video, I hasten to add..
For more info on the Hipp toggle, just google and all will be
----- Original Message -----
From: "Neville Michie" <namichie at gmail.com>
To: "Discussion of precise time and frequency measurement"
<time-nuts at febo.com>
Sent: Thursday, March 05, 2009 4:05 PM
Subject: Re: [time-nuts] GPS antenna installation problem
> Another, maybe the original tape, was called 100 Miles per Hour Tape
> and was sold years after fabric
> covered aircraft wings went out of style as it was so universally
> As the name suggests it was rated for repair of aircraft fabric to
> used up to speeds of 100 MPH.
> cheers, Neville Michie
> PS. I have a type 36 post office clock running and it has a
> synchronising relay that forces the phase
> of the 30 second output pulses to the nearest 2 seconds, by rotating
> the count wheel which has a cardioid cam.
> At a fixed time every day this relay was energised from the central
> site to correct any phase creep in the
> clocks in the regional post offices. I have occasionally thought of
> linking it to a GPS time source.
> cheers, NM
More information about the time-nuts