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N9OGL

Stagger Lee wrote:
On Tue, 07 Nov 2006 21:48:10 -0500, wrote:
: On Tue, 7 Nov 2006 23:47:02 +0000 (UTC), Stagger Lee
: wrote:
:
: On 6 Nov 2006 16:31:39 -0800, N9OGL wrote:
: :
: : Steve, I suggest you read Part 15, Part 15 has nothing to do with power
: : (in Wattage) it has to do with the field strength (maininly the
: : electrical field of the electromaganetic wave) you can put out 100
: : watts and still have the field strength as prescribed under part 15 (on
: : 13.556 MHz it 15,848 microvolts per meter at a distance of 30 meters
: : (90 Feet) CB radio's which run 4 - 5 watts is 10,000 microvolts per
: : meter at 30 meters.....but you wouldn't know anything about that now
:
: Odd. If you take the formula for an isotropic radiator emitting P
: watts and solve it for the electric field, e, you come up with
: e = sqr(30*P)/r at a distance of "r" meters (see my earlier posts).
:
: what is odd is that you keep leaving the apporoate contants that
: adjust for the presence of AIR (amoug other thing

Air and vacuum have nearly identical permittivity and permeability -
the properties which control the impedance of air and of free space
and which in turn relate electric field strength to the spatial power
density. It sounds to me as though you are simply blowing smoke and
have no real understanding of what you just attempted to write.

Todd is operating illegally. No amount of bloviating can make that
fact go away. Deal with it.

If you think that, then complain, if not shut the hell up, bottom line
is when the FCC Does (if they every will) come and check it and it's
within the rules your going to be the one with eggs on his face.
Everyone on here will know it.

Todd N9OGL
OMEGA ONE RADIO

Stagger Lee

On Wed, 08 Nov 2006 11:50:55 -0500, wrote:
: One Guass governs eltrostatic and electro dynamic cases as well One
: normaly learns the the electrostatic case case first
:
: FOOLs like you don't bother to learn more
:
: but you have failed to account for the fact in any RF mattter power
: dvideds beteween the elictric and Magnetic and then the 2 regenerate
: each other (with some path loss
:
: in short you can't profrom a calution worth doing without more than
: data than you have and more equation

The result of solving Maxwell's equations for the radiated field is
that the electric field strength in volts / meter can be used to
compute the power density in watts per square meter by means of the
simple equation

P = e^2 / (120*Pi)

120*Pi is the impedance of free space, as obtained from Maxwell's
equations.

Now that happens to be a pretty complete equation, and it can indeed
be used as it stands to figure out which power density, P, corresponds
to a particular r.m.s. electric field, e. You can also solve the
equation for "e" if you want to calculate the electric field when you
already know the power density. It is a steady-state solution, and it
excludes non-radiating fields (the so-called near field), but it is
good enough for most initial calculations.

So, no, one doesn't need additional equations, and one doesn't need
to worry about power division between the electric and magnetic
fields. That's already been included in the formula given above.

: none of which matter either

They only don't matter because you have the details wrong. If we
tried to get at the radiated field strength your way, we'd never get
an answer at all.

: what matters is the measurable filed strangth

If you can't estimate the field strength beforehand, then you CAN'T
possibly come up with a good initial station design. You'd have to
put something up and hope it works out. I suspect that's exactly what
Todd has done, and it is a very dangerous way to operate.

: to determine if Todd is legal or not you MUST prefrom the test and
: till that is done Innocent till found guility is ther Law

If the calculations suggest that Todd is very probably exceeding the
legal electric field strenth (and they do), it is something that no
sane station operator should ignore. Calculations are inexpensive: A
certified field strength meter is not, and a NAL is even costlier.

Not Cocksucker Lloyd

Saggytits Lee plagiarized and added a few of his own comments to make
it look like he wrote the whole thing again:
On Wed, 08 Nov 2006 11:50:55 -0500, wrote:
: One Guass governs eltrostatic and electro dynamic cases as well One
: normaly learns the the electrostatic case case first
:
: FOOLs like you don't bother to learn more
:
: but you have failed to account for the fact in any RF mattter power
: dvideds beteween the elictric and Magnetic and then the 2 regenerate
: each other (with some path loss
:
: in short you can't profrom a calution worth doing without more than
: data than you have and more equation

The result of solving

Saggytits plagiarizes some more. Poor Saggytits.

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