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Old May 1st 10, 05:23 PM posted to rec.radio.amateur.antenna
Art Unwin Art Unwin is offline
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First recorded activity by RadioBanter: Mar 2008
Posts: 1,339
Default What exactly is radio

On Apr 30, 4:14*am, "Peter" wrote:
I'm preparing an article for a local radio club magazine about the nature of
radio and electromagnetic radiation in general. While this is a non
mathematical and general descriptive treatment of the subject it is a
challenge to make it clear and consistent.
I know this group has some expertise on this subject and would appreciate
any constructive comment and suggestions regarding the attached article.

http://members.optushome.com.au/vk6ysf/vk6ysf/radio.htm

Thank you for your time.

Regards Peter VK6YSF


Peter, the moment you deviate from the ARRL version of intersecting
fields and refer to waves is when you are going to lose your audience.
Maxwell specifically refers only to two properties inductive and
capacitive both of which can be seen as fields.
ARRL then states that these two fields interact at right angles to
each other which is an interaction of current flow ACROSS a capacitor
which is created by the displacement current. Note that waves are not
even being mentioned. This is exactly the mechanism of a particle in a
crt where the particle collides with a screen and the point it
interacts with the screen is governed by two vectors. The only
difference between radio and the crt beam is that
tho both beams are particles , rotating modulation is only imprinted
on the particles occillations or "spin" to form a information carrier
for radio purposes. It is still a closed tank circuit which is the
propelling engine at the end of all transmitters, except in the
radiation cases the closed circuit crosses over itself by passing
sideways thru a capacitor created in the form of a eddy current
created by the reactionary displacement current flow
The idea of using the "wave" term is a carry over from the old days
where the aether was viewed as a viscous soup which has now been
discarded and replaced by a cloud of free electrons swerling around
looking for a diamagnetic place to rest and where the volume of
electrons is more than the available places to rest. Why a diamagnetic
place to rest? Because diamagnetic means that there is no residual
magnetic content within the resting place medium.
So Peter, your audience can align visually with the idea of a crt
and a beam created by a combination of capacitance and inductance
which provides a straight line trajectory which is a central part of
radio, and gets away from a viscous
water wave movement that does nothing to infer a straight line
projection or the energy sinosoidal interaction created by a tank
circuit or indeed a pendulum.