60 Hz measurement party
Hi Jim,
I was studying that area in Google Earth. There is detail for under water
objects near the shore line.
There are some objects that look like troughs in ocean floor just south of the
location that are grouped in pairs. Taking a measure from the first pair does
place it about 6000 feet from the shore line near where the vault is suppose to
be.
The location of the first pair is :
34d 01' 23.04" N
118d 32' 49.40" W
From the first pair, the rest run in a line southward on the 120 degree radial
for about 6000 feet. If these are not the intended target then they are
certainly interesting deformations. There seems to be three sets of these as you
will see two other lines of similar deformation pairs.
What do you think ? ? ?
Bill....WB6BNQ
Jim Lux wrote:
On 6/26/11 8:23 PM, Jim Lux wrote:
? I just have to look for a set of towers with a single duplex cable.
?
? (actually a bit of googling found a report
?
? www.kentercanyon.org/index.php/download-public-docs/doc/25/raw
?
? )
OK.. the electrodes are about a mile off shore from Gladstone's-4-Fish
on PCH (for those of you familiar with the area). The onshore vault is
in their parking lot.
I wonder what it looks like, and how deep the water is? ANd whether one
would want to dive there when it's turned on?
Fascinating.. it runs 20 hours a year..
There's a some folks concerned about the overhead line going near/over a
school. I'll bet they didn't actually know the line is unenergized
virtually all the time.
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On Sat, Jun 25, 2011 at 12:34:41PM -0700, Tom Van Baak wrote:
We are more a group of experimenters than lamenters, so
here's an open invitation to all of you in the US to join me
on a 60 Hz measurement party, starting as soon as you
can and lasting as many weeks or months that it takes to
get interesting plots.
It will be interesting to see of there is any difference after
Jult 14 when Time Error Correction Elimination is stopped for
testing.
On 06/25/2011 09:34 PM, Tom Van Baak wrote:
We are more a group of experimenters than lamenters, so
here's an open invitation to all of you in the US to join me
on a 60 Hz measurement party, starting as soon as you
can and lasting as many weeks or months that it takes to
get interesting plots.
Here is what I have used with far better success than transformers. For
some reason the transformers I get hold of have quite large phase error
(ie. they are cheap and get warm).
http://wap.taur.dk/zcd/sch.jpg
http://wap.taur.dk/zcd/plug.jpg
Cp has the dual role of killing RF, and compensating for the H->L
threshold of the HC14. It sits on the hot side, and charges up through
the protection diodes for the next 200us pulse.
It will drive 10m of POF.
Substitute an opto coupler of choice if you need less isolation.
/Kasper Pedersen
Hi Kasper,
Your picture shows what looks like a battery, but I do not see that included on
the schematic ?
This seems overly complicated seeing as how there are opto-couplers designed for
this purpose. They even have Schmitt trigger functions incorporated. All in a 8
pin dip style package designed to provide separation and protection.
Bill....WB6BNQ
Kasper Pedersen wrote:
On 06/25/2011 09:34 PM, Tom Van Baak wrote:
We are more a group of experimenters than lamenters, so
here's an open invitation to all of you in the US to join me
on a 60 Hz measurement party, starting as soon as you
can and lasting as many weeks or months that it takes to
get interesting plots.
Here is what I have used with far better success than transformers. For
some reason the transformers I get hold of have quite large phase error
(ie. they are cheap and get warm).
http://wap.taur.dk/zcd/sch.jpg
http://wap.taur.dk/zcd/plug.jpg
Cp has the dual role of killing RF, and compensating for the H->L
threshold of the HC14. It sits on the hot side, and charges up through
the protection diodes for the next 200us pulse.
It will drive 10m of POF.
Substitute an opto coupler of choice if you need less isolation.
/Kasper Pedersen
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Here's yet another way to monitor power line timekeeping...
This is about half a day from a webcam, taken at 15 minute
intervals by a PC, compressed to a 12 second animated GIF.
http://www.leapsecond.com/pages/tec/mains-clock-ani.gif
/tvb
At 09:54 PM 7/3/2011, Tom Van Baak wrote:
This is about half a day from a webcam, taken at 15 minute
intervals by a PC, compressed to a 12 second animated GIF.
That's funny...I picked up a mains clock yesterday and started
something similar. I've got a WWVB clock in the field of view,
snapping pics at 1 minute intervals while I work the bugs out. I've
learned that Timershot isn't accurate enough for good timelapse work.
--
newell N5TNL
Hi
Doing something similar in the mid 1960's we noticed that the local power company did time correction just ahead oft 5 pm. You could start listening to the time ticks on WWV or CHU at 4 pm and see them do the correction over the hour. For what ever reason their daily correction was at least a couple seconds. In a few cases people reported stuff at > 5 seconds.
Bob
On Jul 3, 2011, at 10:54 PM, Tom Van Baak wrote:
Here's yet another way to monitor power line timekeeping...
This is about half a day from a webcam, taken at 15 minute
intervals by a PC, compressed to a 12 second animated GIF.
http://www.leapsecond.com/pages/tec/mains-clock-ani.gif
/tvb
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