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Old April 30th 06, 08:11 AM posted to rec.radio.amateur.antenna
 
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Default Missing Degrees in Mobile Antennas?

W8JI wrote:
So what current is it you are measuring? Charges cannot flow two
directions at the same time at the same point in a system. There cannot
be drift velocity in two dorections at the same time.


Cecil Moore wrote:
Just as two water waves can flow in opposite directions using the
same water molecules, two EM waves can flow in opposite directions
using the same electrons.



That's where you are wrong Cecil.

While the effects of energy and reflection of current and voltage can
be considered as a real actionl, current actually can only flow one
direction at one time at one point in one conductor . There is no other
way.

You are confusing a model that is supposed to aid people in solutions
as the "real" thing happening.

Every single thing that can be done with standing waves can be done
with circuit solutions, and we cannot have charges moving two
directions at the same time at any one point in the system.

The radiation from a short antenna is easily tied directly to
ampere-feet, and the amperes that cause that radiation **is** the
current Roy and I measured. The current Roy and I measured is the
current level causing heat.

Be assured that along the short length of the conductor at any fixed
instant of time in one spot, you cannot possible have two potentials or
charge differences causing charges to move two directions at once.

What you are saying is you have something that cannot actually happen
and even if it could it has no effect and cannot be measured, and that
is what is important to you and makes the rest of the world wrong.

No wonder no one can agree with you!

73 Tom

 
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