On Dec 3, 12:29*pm, Richard Clark wrote:
On Thu, 03 Dec 2009 02:28:26 -0600, Lostgallifreyan

wrote:
Regarding the other postings today, I can see that if you're receiving a long
wave signal a small system will do if the sensivity is good and the noise is
low, but transmission is another matter entirely.

Reciprocity dominates, but transmit and receive circuits are not
always reciprocal (that is, symmetric or identical). *If you match at
the antenna, you don't lose signal in the loss of the transmission
line where SWR would dominate. *That topic is best left to other
discussion.

But whatever the theories
propounded might be, I guess the observations are what matters. I haven't the
space or equipment to test it, but if anyone manages to transmit a lot of
longwave RF from a small directional system such as Art Unwin appears to be
describing, then the theory will take care of itself, eventually, but I also
get the strong impression that few people, if any, have done it. As far as I
know, all low frequency RF transmitting systems are large, powerful things,
and not very directional.

In logic there is the argument called Reductio Ad Absurdum. *With the
claim of a resonant small antenna being efficient there exists an
obvious example that completely disrupts this. *Since the inception of
man-made RF radiation, ALL such attempts have been preceded with a
resonant coil/capacitor combination. *Think of the plate load of the
conventional RF transmitter in both amateur and professional
applications for the many decades that followed Hertz' work.

This small, resonant plate load, is quite specifically designed for RF
with low in resistive loss - and yet it is miserable as a propagator
of that same RF. *The physical size compared to the wavelength size
dominates that efficiency with a fourth power law. *Hertz' original
design was in the VHF where his "plate tank" (so to speak) was
physically large in relation to the wavelength he successfully
transmitted to a nearby physically large receiving tank.

73's
Richard Clark, KB7QHC

A perfect example of an old man or woman not willing to accept change.
For the cost of a few dollars they would not have made such fools of
themselves over the years.
I have stated many times that adding a time varying current to a
Gaussian field of statics
represents Maxwells laws for radiation. The group many times over say
this is foolish and stupid. I know it is not stated or confirmed in
the books. When one accept that statement of mine the next deductions
become obvious.
A radiator can be any size, shape or elevation as long as it is in a
state of equilibrium and is in compliance with Maxwells equation for
radiation.
I have opreviously shown how static particles are part and parcel how
a Faraday shield works. I now have shown again how Maxwell and Gauss
also state that particles are part of radiation. In addition, the
particle is also part of a CRT mechanism as is the salvage sorting
system when sorting aluminum cans. I have also shown how the particle
achieves a straight line trajectory with spin unaffected by gravity
which is also essential to radio propagation.
Yet hams still hang on to the yagi and all its atributes as being the
cats whiskers.
Thus size has become everything and the volume it occupies instead of
distributed loads only as long as it is in equilibrium. The particle
responsible for radiation and light is very small and is the perfect
example of point radiation at its best.
All it takes is a few dollars and a few hours work to make such an
antenna, which allows you to stop making idiots of your selves, or a
modicum of physics. Instead, you are all so sure that you find no need
to get up from a couch.
As I have stated many times, all the group has done is the waving of
hands with no physics attached or any explanation why it is in total
conformance with antenna computer programs of the day in addition to
the points I have made. With groups such as this it is no small wonder
that radiation has not been fully understood for more than a century.