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Flat Earth General / Re: See Earth in all it's round beauty 22 miles up from a balloon for only 150k
« on: August 20, 2011, 07:50:10 AM »
Infrared light and some types of radio waves may also be blocked by thousands of miles of atmosphere. FM waves are limited by atmospheric density, for example.
That is why I said that the signal can be degraded slightly. It will not completely block it, however.
It is also why I said increasing the transmission power would assist to overcome the degradation. No amount of power could overcome signal blockage by natural land curvature.
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Intercontinental communication is possible via radio waves. It is possible to pick up AM radio waves from the other side of the world with a HAM radio.
In RET this phenomenon is mumbled away by an absurd claim that the radio waves bounce back and fourth between the surface of the earth and the ionosphere around the earth's curvature to reach their destination. It can apparently do this without extreme scattering.
In FET the waves need only to take a straight line path through the atmosphere to reach the destination.
Yes, that is why I specifically referred to VHF communication, which propagates line-of-sight. The types of transmissions that can go around the world are in the HF bands. The "absurd" claim that the radio waves bounce between the surface of the Earth and the Ionosphere has been observed quite readily.
Ask any Ham to show you how it works. You would be likely dumbfounded to explain how an HF transmission can be directed straight up, using a unidirectional antenna, and then listen to a distinct echo of the transmission as it reflects back to the original source.
Furthermore, by using a unidirectional antenna, the signal can be set an any specific angle pointing toward the sky, yielding a predictable transmission range as the height of the Ionosphere is known.
This is called Skywave Propagation. It has been utilized for decades using "non conspiracy-inducing" analog circuitry. The behavior of the various frequency bands is well known.
This is an activity being performed continuously throughout the day by millions of licensed hams. Hardly a phenomenon that is "mumbled away."
Hams are ALWAYS trying to learn something new about their hobby, and would jump at the chance to share it with his club and community. If there was even the slightest passing thought that the difference between VHF and HF propagation was nothing but the ability to penetrate an atmosphere, word would travel VERY fast (largely over the air), and the "conspiracy" would unravel in only a short time.
By the way, the word "absurd" doesn't sound very scientific, especially when used to describe an easily observable and repeatable phenomenon.