ignals to the node.:: Metro network transmission distancesMetro network transmission distance can range from a few kilometers up to 200 kilometers but most are in the shorter range. Most spans are actually under 100 kilometers and thus do not require optical amplifiers in most cases unless the coupling loss are too high.No optical amplifiers required allows light wavelength operation outside of the readily available optical amplifier band. Such that light wavelengths can be spread out across a broader range of less-expensive optics and transmitters.
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Telescopes act as windows to the universe. It is with the help of telescopes that we can study the solar system and view the conjunctions of stars. Not just that [link widoczny dla zalogowanych], the various planets [link widoczny dla zalogowanych], galaxies, satellites and asteroids that we get to see only in the books and magazines are made more familiar to us via the telescopes. They act as barrier- breaking instruments between the human beings and the outer space. The universe is no more a mystery to us that exists beyond our reach and we owe it all to the telescopes.The modern day telescopes bring with them a wide array of accessories and it is with the aid of these accessories that it becomes much more easier to successfully put the telescope
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