On 9 September 2010 00:51, Rob Kimberley <[email protected]> wrote: > Got this post 5 times - you still getting aftershocks??
That must be level 5 on the posting scale:) Don't know why you got 5 copies of it as I had no problem sending it but my apologies to all if you've received multiple copies of this. And yes, we are still receiving after-shocks but they seem to have quietened down in the last 24 hours. Steve > :-) > > Rob K > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of Steve Rooke > Sent: 07 September 2010 11:06 PM > To: Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] Steve's new QTH... > > Burt, > > On 8 September 2010 01:45, Burt I. Weiner <[email protected]> wrote: >> Steve, >> >> Depending on the type of antenna used for your GPS, you might want to >> check the Zenith or vertical angle, and if possible, compare that to >> pre-quake positioning. Your antenna may now be seeing a change in >> multipath from some nearby environmental change (no pun intended under >> the circumstances) that could cause a difference in reflected signals > arriving at the antenna. > > With that in mind I've just changed the default 10 deg elevation mask angle > to 30 deg and will see what effects that has. Looking closely at the antenna > mounting I cannot see any change in it's angle or position but there may > have been some movement of this area as we are on an artificial bank > abutting the wetland wildfowl park. What I really need is a real GPS survey > system to determine my correct location. > >> Many years ago I ran into a combined group on Mt. Wilson, our local >> broadcast farm in the mountains, from Cal Tech and MIT that was >> measuring the movement between Southern California mountains using >> lazers. While this was scientifically fascinating, it gave me the > willies. > > Yes, it really brings it home that we live on just the skin of a rice > pudding. This sort of thing must be a nightmare for the ground stations in > control of the GPS system. What happens if the 0 deg meridian (used to be > the Greenwich meridian) physically moves, do they account for this I wonder. > Considering that the American continent and Europe/Africa are constantly > moving apart, and Asia and the Americas are moving closer, this must mean > that the position of basically most places on the Earth are constantly > changing anyway. Makes you feel like saying, where am I today. > > 73, > Steve ZL3TUV > >> Burt, K6OQK >> >> >>> Date: Tue, 7 Sep 2010 18:08:31 +1200 >>> From: Steve Rooke <[email protected]> >>> Subject: Re: [time-nuts] Freestanding mast >>> >>> >>> Well, Steve has been experiencing a LOT of after-shocks, some of >>> which are still big enough to move things around and I found I had to >>> grab hold of my cup of tea to stop it shaking onto the floor last >>> night. In fact these after-shocks are still opening up new cracks in >>> roads and causing buildings to fall. >>> >>> As for my height position, I have run a few surveys but I'm getting >>> varying readings and I wonder if the after-shocks are messing up the >>> survey results. The latest one which was during a fairly stable >>> period was 6.8 MSL. >>> >>> The mast could have sunk a bit or even this whole area could have >>> done as I live on reclaimed marsh-land. My Mothers 3 year old house >>> looks like it has sunk a bit at one and and risen at the other, ie. >>> it looks like it has tipped slightly as her house is built on a >>> concrete pontoon. >>> >>> It wouldn't surprise me if they adjust the height of MSL but I would >>> have thought they would have moved it the other way in an attempt to >>> forestall fears of the effects of Global Warming. >>> >>> Regards from Quake City, >>> Steve >> >> Burt I. Weiner Associates >> Broadcast Technical Services >> Glendale, California U.S.A. >> [email protected] >> www.biwa.cc >> K6OQK >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> > > > > -- > Steve Rooke - ZL3TUV & G8KVD > The only reason for time is so that everything doesn't happen at once. > - Einstein > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > -- Steve Rooke - ZL3TUV & G8KVD The only reason for time is so that everything doesn't happen at once. - Einstein _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
