Вопрос № 306435 - Английский язык

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The crackle heard in radio receiver can also be produced by switching of high-voltage power lines.

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Radio was invented in Russia. The world’s first receiver was constructed in 1895 by the great Russian scientist Alexander Popov. There were no transmitters then, therefore his receiver could only pick up signals produced by lightning discharges during a thunderstorm. A. Popov demonstrated a device called a “storm indicator” at a meeting of the Russian Physico-Chemical Society in St. Petersburg on May 7, 1895. This day is marked now as Radio Day.

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The DF as navigational system has a long history.

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T34C controllers can be configured with up to six control levers.

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Short wave can be transmitted at large distances.

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The receiver identifies each satellite’s signal, measures the time delay and calculates the distance to the satellite.