.
Why do satellites get photographs of Antarctica if the earth is "flat?"

Okay... let's assume the globe is flat.
Why all the unnecessary toiling of suspending obects for the purpose of all communications then?

By what FEer's are saying, it could be easily achieved by just a handful of towers... for example, I look out of my living room window everyday and see Mt. Wilson, elevation of 14,252' (14th highest peak in Colorado.) The tallest peak in all of North America would be Mt. Denali in Alaska, elevation 20,310'. The highest peak in all of the contiguous US would be Mt. Whitney in California, elevation 14,505'.

By just these three peaks that I have mentioned, all navigation and communications would be made possible for all of the western United States, western Canada and much of Mexico.

But, unfortunately the horizon just keeps getting in the way...

Interestingly, proponents of globe earth claim that shortwave signals can travel around the globe because they bounce off the ionosphere.  But with flat earth such signal refraction (as they call it) would not be necessary.

I wonder if this refraction off the ionosphere is just another way to hide flat earth.  If the earth is a globe, then how do radio waves travel so far, since they don't bend around the curvature?  Answer:  (surprise) refraction.

Animation of a half-wave dipole antenna radiating radio waves, showing the electric field lines. The antenna in the center is two vertical metal rods, with an alternating current applied at its center from a radio transmitter (not shown). The voltage charges the two sides of the antenna alternately positive (+) and negative (−). Loops of electric field (black lines) leave the antenna and travel away at the speed of light; these are the radio waves. The action is drastically slowed down in this animation.

Diagram of the electric fields (E) and magnetic fields(H) of radio waves emitted by a monopole radio transmitting antenna (small dark vertical line in the center). The E and H fields are perpendicular as implied by the phase diagram in the lower right.

Rough plot of Earth's atmospheric transmittance (or opacity) to various wavelengths of electromagnetic radiation, including radio waves.

• Line of sight: This refers to radio waves that travel in a straight line from the transmitting antenna to the receiving antenna. It does not necessarily require a cleared sight path; at lower frequencies radio waves can pass through buildings, foliage and other obstructions. This is the only method of propagation possible at microwave frequencies and above. On the surface of the Earth, line of sight propagation is limited by the visual horizonto about 40 miles. It is the method used in short range radio communication systems such as cell phones, walkie-talkies, wireless networks, FM andtelevision broadcasting and radar. By using dish antennas to transmit beams of microwaves, point-to-point radio relay links transmit telephone and television signals over long distances up to the visual horizon, and ground stations can communicate with satellites and spacecraft billions of miles from Earth.
• Ground waves: At lower frequencies, in themedium wave and longwave bands, due todiffraction vertically polarized radio waves can bend over hills and mountains, and propagate beyond the horizon, traveling as surface waveswhich follow the contour of the Earth. This allows mediumwave and longwave broadcasting stations to have coverage areas beyond the horizon, out to hundreds of miles. As the frequency drops, the losses decrease and the achievable range increases. Military very low frequency (VLF) and extremely low frequency(ELF) communication systems can communicate over most of the Earth, and with submarines hundreds of feet underwater.
• Skywaves: At medium wave and shortwavewavelengths, radio waves reflect off a conductiveionized layer in the atmosphere called theionosphere. So radio waves directed at an angle into the sky can return to Earth beyond the horizon; this is called "skip" or "skywave" propagation. By using multiple skips communication at intercontinental distances can be achieved. This technique is used by militaryover-the-horizon (OTH) radar systems, by radio amateurs, and by shortwave broadcasting stations to broadcast to other countries. Skywave propagation is variable and dependent on atmospheric conditions; it is most reliable at night and in the winter.

Look up radio wave in Wiktionary, the free dictionary.

• Radio astronomy
• Television transmitter

• ↑ ITU Radio Regulations, Chapter I, Section I, General terms – Article 1.5, definition: radio waves or hertzian waves
• ↑ 
• ↑ 
• ↑http://www.1728.org/freqwave.htm
• ↑http://www.nrao.edu/index.php/learn/radioastronomy/radiowaves
• ↑ 
• ↑ 

• James Clerk Maxwell, "A Dynamical Theory of the Electromagnetic Field", Philosophical Transactions of the Royal Society of London 155, 459-512 (1865).
• Heinrich Hertz: "Electric waves; being researches on the propagation of electric action with finite velocity through space" (1893). Cornell University Library Historical Monographs Collection.  Cornell University Library Digital Collections.
• Karl Rawer: "Wave Propagation in the Ionosphere". Kluwer, Dordrecht 1993. ISBN 0-7923-0775-5

Interestingly, proponents of globe earth claim that shortwave signals can travel around the globe because they bounce off the ionosphere.  But with flat earth such signal refraction (as they call it) would not be necessary.

I wonder if this refraction off the ionosphere is just another way to hide flat earth.  If the earth is a globe, then how do radio waves travel so far, since they don't bend around the curvature?  Answer:  (surprise) refraction.

You showed us neither the code nor the Math.

You showed us neither the code nor the Math.

What are you talking about?

Shortwave would need to bouce off the dome because the air is clearer and there is less interference. Globers call it the ionsphere, we call it the dome.