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Old December 5th 05, 10:25 PM posted to rec.radio.amateur.antenna
Gene Fuller
 
Posts: n/a
Default Antenna reception theory

Richard,

OK, I will turn this right back at you. How do you know that the
countless Faraday screens remove the E-field component from
electromagnetic waves?

"Saying it does not make it so."

Yes, I understand they are used in broadcast transmission lines, and
yes, I understand they take many lightning hits.

Faraday screens are effective. How do you know that they also negate the
fundamental properties of time-varying electric and magnetic fields as
expressed by Maxwell's equations?

73,
Gene
W4SZ

Richard Harrison wrote:
Gene, W4SZ write:
"As has been said many times on this newsgroup, it is not possible to
filter out one field component or the other."

Saying it does not make it so.

Countless Faraday screens are at work removing the E-field component
from electromagnetic waves. Faraday said that the voltage in a coupled
circuit depends only on the rate of change of the magnetic flux through
the circuit. He was refering to induced voltage. It was 1831 when
Michael Faraday observed the interaction between primary and secondary
coils in what was likely the world`s first transformer. Faraday made it
himself and noted that the needle of a galvanometer connected across one
coil deflected briefly whenever he connected or disconnected a battery
across the other coil.