Fiber Optic
Posted on Sunday, February 15, 2009 in Home Audio
If a maximum damping between two transponders of 40 dB is allowed for a fiber optic system to determine the maximum?
If a maximum damping between two transponders of 40 dB is allowed for a system of fiber optics to determine the maximum repeater spacing for two characteristics of fiber attenuation (0.5 dB/1000 m and 0.03 dB/1000 ft). How their repeaters would be needed for a fiber optic system each of the attenuation characteristics around the Earth at the equator?
0.5 db you need all the 80,000 feet or 16 miles, to 0.03 db you need one every 40 / (.03 * 5.28) = 252 km If the circumference of the earth is 25000 km and 25000/16 = 1563 or 25000/252 = 100 repeaters are necessary.
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