12 A waveform travels in space at a rate of approximately 300 million meters
14.12 A waveform travels in space at a rate of approximately 300 million meters per second. The wavelength of a sine wave is the actual distance in space that is used by one sine wave as it travels. What is the wavelength of a 100-MHz sine wave? What is the wavelength of a 500-MHz sine wave? Antennas to send and receive electromagnetic waves are often sized to be one-half of the wavelength for the particular wave being used. Compare your previous calculations to the size of VHF and UHF television antennas. How large would a 1/2 wavelength antenna have to be to transmit a 60-Hz wave?14.17 Carefully draw a diagram that represents the binary sequence 00101110100010.Now, below your original diagram, draw the Manchester encoded representationof the same sequence.14.19 What is the 4B/5B encoding for the binary sequence 1101000011001101?14.20 a. What is the binary sequence represented by the 4B/5B encoded sequence11110011111101111110?b. What is the binary sequence represented by the 4B/5B encoded sequence10101010101010101011?
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