Create electronic signals in the telescope

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Q. A radio telescope, whose two antennas are separated by 55 , is designed to receive 3.0- radio waves produced by astronomical objects. The received radio waves create 3.0- electronic signals in the telescope's left and right antennas. These signals then travel by equal-length cables to a centrally located amplifier, where they are added together. The telescope can be "pointed" to a certain region of the sky by adding the instantaneous signal from the right antenna to a "time-delayed" signal received by the left antenna a time ago. (This time delay of the left signal can be easily accomplished with the proper electronic circuit.)

Reference no: EM1359818

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