Cecil Moore wrote:
Yuri Blanarovich wrote:

"K7ITM" wrote:
It seems to me that when "W8JI" is associated with something, you
assume immediately that it is wrong.

That's what might seem to you, but I point out gross misinformation, when I
come across it.

What gets missed quite often in these discussions is that
everyone agrees on 99 44/100 percent of the technical issues
and we tend not to discuss those issues. We only discuss the
56/100 percent of the issues upon which we disagree.

Make no mistake about it, I disagree with everything Yuri has posted
about the physics behind a "shielded loop".

I certainly don't want to be considered to be 99% in agreement with
anyone who thinks a time-varying magnetic field can pass though a
highly conductive copper wall, or any wall that is several skin depths
thick, just as I don't want to be 99% in agreement with anyone who
thinks a loading coil "replaces" or has the phase shift or "current
drop" of missing electrical degrees.

The basic physical properties have to be understood before I'd be
largely in agreement. If basic building blocks are wrong, our idea of
how the worlds works must also be very distorted.

73 Tom

wrote:
Cecil Moore wrote:
What gets missed quite often in these discussions is that
everyone agrees on 99 44/100 percent of the technical issues
and we tend not to discuss those issues. We only discuss the
56/100 percent of the issues upon which we disagree.

Make no mistake about it, I disagree with everything Yuri has posted
about the physics behind a "shielded loop".

That's part of the 56/100 percent of the issues upon which you
disagree.

... I don't want to be 99% in agreement with anyone who
thinks a loading coil "replaces" or has the phase shift or "current
drop" of missing electrical degrees.

Just proves that no individual is right 100% of the time. 75m
bugcatcher coils obey the laws of physics and thus suffer a
delay in the real world. Hint: Contrary to the lumped circuit
model, *everything* has a delay in the real world. The only place
coils don't have a delay is in your mind where miracles and
magic are possible.

The loading coil causes a phase shift in accordance with the
laws of physics. The stinger causes a phase shift in accordance
with the laws of physics. The impedance discontinuity between
the coil and stinger causes a phase shift in accordance with
the laws of physics. There are NO missing degrees.

When you comprehend how an electrical 1/4WL stub can be 19 degrees
of 450 ohm line plus 18 degrees of 50 ohm line and be physically
0.1 WL long, then you will have comprehended reality.
--
73, Cecil http://www.qsl.net/w5dxp

Cecil,
Now we have special case of biiiig coils being antenna here.
Let the games begin!

Yuri

"Cecil Moore" wrote to W8JI:

When you comprehend how an electrical 1/4WL stub can be 19 degrees
of 450 ohm line plus 18 degrees of 50 ohm line and be physically
0.1 WL long, then you will have comprehended reality.
--
73, Cecil http://www.qsl.net/w5dxp