On Sep 13, 2013, at 6:03 AM, David Hooke wrote:
Does anyone have a secret stash of the RMB A.03.0x version?
I don't have that. But what I do have that might be of interest to someone is
the source code (BASIC) for the older 3047A system (11740A/35601A). I have
uploaded it to KO4BB (give
The shaking table, or base plate, is not a non-moving mass, but is the
coupling factor which transfers the energy from the sum of all the other moving
masses from the strongest to the weaker. Another example of majority rule, if
you will.
Remove the resonance frequency of this coupling factor
Lady Heather does not truncate the display of any values. Generally, it It
reports all values to the resolution that the device sends... garbage in,
garbage out.
--
but the program you're using (LH?) apparently truncates the display
On 09/14/2013 04:37 AM, David McGaw wrote:
Not true. It depends on the strength and reciprocity of the
coupling. If essentially equal as with the metronomes which are
coupled pendulums (the math exists for this), the systems will come to
some combination frequency, though as has been
Coupled oscillators can do very interesting things above and beyond simple
synchronization.
Look at the circuit at the bottom of this page with 5 cross-connected neon
bulb multivibrators. http://donklipstein.com/sillyne2.html They are
symmetrically cross connected favoring no particular
Hi
Yes, the settling in is fractal and the path taken to sync isn't the same
every time.
For a simple way to look at multiple coupled clocks go back to old style
filter theory:
1) You have some number of resonators
2) You have some set of coupling coefficients between the resonators
3) You
The math I am familiar with, seems to have mostly developed around
master-slave arrangements associated with radar pulses and (as you point
out) TV. In the MIT Rad Lab series there are some single-purpose treatments
but a good summary is Millman Taub, Pulse and Digital Circuits. Their
approach is
A frame-by-frame analysis of the metronome video could show the frequency
and phase of each of the 32 metronomes as a function of time.
Is there a non-youtube version of the video using a well-characterized
video format? I'm not sure I would trust the youtube video codecs to keep
time correctly,
Hi
Google Orbital Resonance. The same process works for *very* large systems,
and you can lock at interesting ratios like 2:3 or 1:2:4 in addition to 1:1.
Bob
On Sep 14, 2013, at 9:34 AM, Tim Shoppa tsho...@gmail.com wrote:
A frame-by-frame analysis of the metronome video could show the
A frame-by-frame analysis of the metronome video could show the frequency
and phase of each of the 32 metronomes as a function of time.
Is there a non-youtube version of the video using a well-characterized
video format? I'm not sure I would trust the youtube video codecs to keep
time correctly,
On 9/14/13 6:20 AM, Tim Shoppa wrote:
The math I am familiar with, seems to have mostly developed around
master-slave arrangements associated with radar pulses and (as you point
out) TV. In the MIT Rad Lab series there are some single-purpose treatments
but a good summary is Millman Taub, Pulse
Hi
There is a General Radio group on Yahoo ( gen...@yahoogroups.com ) that's a
*really* good place to look for these things.
Bob
On Sep 14, 2013, at 9:29 AM, Gordon Batey gpba...@wildblue.net wrote:
Greetings,
I have obtained several older style General Radio items that use the
OLD
Today I moved the antenna to above the beams. This is temporary because it's
in the way of the beams turning. I guess I need to get someone out here to
help me install it on top of the beam mast. I don't feel confident to do it
myself anymore. I suppose it's not going to hurt anything if
Here's a better view of the antenna looking due south.
http://i251.photobucket.com/albums/gg287/DogTi/abovebeamssouth_zpsd8fb78ca.jpg
Dave
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Hi
On Sep 14, 2013, at 12:45 PM, quartz55 quart...@hughes.net wrote:
Today I moved the antenna to above the beams. This is temporary because it's
in the way of the beams turning. I guess I need to get someone out here to
help me install it on top of the beam mast. I don't feel confident
Hi
As long as the wind does not blow the tower around, that's probably your best
location.
Bob
On Sep 14, 2013, at 1:26 PM, quartz55 quart...@hughes.net wrote:
Here's a better view of the antenna looking due south.
I get a spread of around 300ppt, that means I'm always within
300x10^-9 Hz of 10MHz or .0003Hz at 1GHz?
Note 300 ppt is a fractional frequency, unit-less value, so
at 10 MHz, 300e-12 * 1e7 Hz = 0.003 Hz
at 1 GHz, 300e-12 * 1e9 Hz = 0.3 Hz
I suppose the ppt spread is pretty much a function
Microwave injection locking of Magnetrons with beam steering phased
array. Lots of math!
If it's on the top of the antenna mast, it should only rotate around the mast,
which may be 4 at most. I can stabalize the mast a bit with a outrigger at the
bottom which I've been meaning to do for years. The pipe from the chimney is
1 thick wall, so there isn't much wind effect there, I
Hi
If you mostly keep the beams pointed into the wind, I'd do that before you do
the next survey.
Bob
On Sep 14, 2013, at 2:59 PM, quartz55 quart...@hughes.net wrote:
If it's on the top of the antenna mast, it should only rotate around the
mast, which may be 4 at most. I can stabalize the
On 9/14/13 11:22 AM, Joe Leikhim wrote:
Microwave injection locking of Magnetrons with beam steering phased
array. Lots of math!
OT for the current heading, so I renamed it Oscillator stability
as Tom says, it's a complicated subject.
And to complicate things even further, here are a few of advanced subtleties
that I've observed from the TBolt when using LadyHeather.
1) The TBolt uses the received GPS signal as the
Hi Warren,
There's a lot of good information in this post, and I've discovered a lot of it
while writing my GPSDO PLL. In point 5, you mention that to correct for
frequency it has to be off frequency. I've seen this on both sides of it.
From time to time, I see extremely long periods of no
Funny when I go to the links and read about the subject, time seems to slowww
down
By the way, googling microwave weed burner to find this article turned
up another application of microwave heating for a very different kind of
weed.
--
Joe Leikhim
Leikhim and Associates
Communications
On 9/14/13 5:19 PM, Joe Leikhim wrote:
Funny when I go to the links and read about the subject, time seems to
slowww down
By the way, googling microwave weed burner to find this article turned
up another application of microwave heating for a very different kind of
weed.
Oh wow..
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