Re: [time-nuts] Need Time Help

2016-10-05 Thread Peter Torry via time-nuts
I must admit to being rather puzzled at the sub microsecond timing 
requirement as I use ntp to set the W7 clock in my computer and have not 
had any issues. In fact less than one second is OK for the usual two 
minute periods that are required to allow for the Faraday rotation. 
Although I use a GPSDO for a frequency reference I find JT software 
reasonably tolerant of frequency.  As I may be missing something I would 
welcome observations on how important the period timing requirement is, 
you never know I might get more contacts.


Regards

Peter


On 05/10/2016 12:50, Graham / KE9H wrote:

For the group. This ham is trying to work EME. Earth-Moon-Earth propagation
path. Aka, "moonbounce."

He is trying to time synchronize a system, where the other station he is
communicating
with can be any other place on the Earth that can also see the Moon.

So the system time sync is for a little bit tougher case than a local area
network.

--- Graham




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Re: [time-nuts] Visiting Greenwich

2016-07-07 Thread Peter Torry via time-nuts

Dave,

The rules have changed regarding photography for all National Trust 
properties so click away.


Regards

Peter


On 07/07/2016 21:41, Dave Martindale wrote:

Hmm.  When I was there yesterday I didn't see any "No Photography" signs,
so I photographed lots of the exhibits, including the four Harrisons . I
used flash, so I wasn't the least bit stealthy, and one of the staff was
only a few feet away.  Maybe they no longer care?

Dave

On Wednesday, 6 July 2016, Morris Odell  wrote:


  I can recommend the climb up the hill at Greenwich to anyone - it's
definitely worth the effort. They didn't allow photography of the Harrison
clocks but I did manage to sneak one or two before the minder got to me :-)

Morris
Melbourne, Australia



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Re: [time-nuts] Visiting Greenwich

2016-07-06 Thread Peter Torry via time-nuts
The original speaking clock ( in use from 1936 to 1963) has been 
restored to working order and is on show at the British Horological 
Institute at Upton Hall near Newark (UK). Speaking clock N0 2 that 
replaced No 1 is quartz controlled and also on view at Upton hall.  If 
anyone would like details of them just let me know.


Peter Torry



On 06/07/2016 06:20, Dave Brown wrote:
I have a pdf of a POEEJ article on the speaking clock that came into 
service 24 July 1936 if anyone is interested. I suspect this predates 
the one under discussion? I also have a two part article on the Mark 2 
built in the UK for Australia.(mid 1950s)

DaveB, NZ






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