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Sattelite television is very important in areas where it isn't possible to install cable and the terrestrial television reception is weak or non-existent. Both systems use radio frequency signals to transmit and they travel in straight lines. That means that for broadcast television, which is transmitted and received by land-based antenna, the natural curvature of the earth will break the signals' direct line of sight. It also means that other land based obstacles like mountains and trees are likely to interfere with the TV signal and cause some weakening and distortion. Business - Click the link on the left to visit our partner sites under business/finance/loan/mortgage category Computers - Click the link on the left to visit our partner sites under computer hardware/software/peripheral category Internet - Click the link on the left to visit our partner sites under webhosting/webdesign/internet marketing category Software - Click the link on the left to visit our partner sites under software category Web Design - Click the link on the left to visit our partner sites under web design/development category Web Hosting - Click the link on the left to visit our partner sites under web hosting category Web Promotion - Click the link on the left to visit our partner sites under search engine optimization/internet marketing category Web Resources - Click the link on the left to visit our partner sites under other web category Recreation - Click the link on the left to visit our partner sites under travel/hotel/cruise category Casino - Click the link on the left to visit our partner sites under online gambling/poker/blackjack/roulette category Health - Click the link on the left to visit our partner sites under online pharmacy/hospital/health category Shopping - Click the link on the left to visit our partner sites under online shopping/gift category Miscellaneous - Click the link on the left to visit our partner sites under all other categories
Satellites that transmit TV are placed in orbit over 22,000 miles above the Earth and they rotate around the planet once every 24 hours and in the same direction that the Earth is rotating in. Because the Earth rotates once every 24 hours and the satellite moves around the Earth at the same velocity in the same direction, the satellite always stays over the same point on the surface. The satellites are said to be in geostationary orbit. Because they are high in the sky a satellite beams signals over a wide area of the planets surface. |
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