Problems III Transmission lines which can convey electromagnetic waves only in higher order modes are usually called _____? Refers to the ratio of an electric field component to a magnetic field component at he same point of the wave? Refers to the ratio of the phasor fields E and R for a plane (TEM) wave in an unbounded medium? Defined as the quotient of the maximum radiation intensity over the average radiation intensity? Find the forward tilt angle t for a vertically polarized 3 GHz wave travelling in air along the surface of a smooth freshwater lake? Another term for Amplitude Modulation (AM) is _____? A Pulse Amplitude Modulation uses a modulating signal whose frequency is 3 KHz maximum. The practical sampling frequency is _____? If a television channel starts at 66 MHz, the second carrier is found at _____? A two-channel Time Division Multiplexer with channel 1 having the highest frequency of 3 KHz while channel 2 has oly 2 KHz. The lowest commutating or sampling frequency is _____? The main purpose of the 19 KHz pilot in a stereo multiplexed signal in FM is for the receiver to ______? A Pulse Code Modulator (PCM) uses an eight-bit quantizer. If the quantizer output has FF (hex) and 00 (hex) which represents a quantized voltage of 1 volt and 0 volt respectively, then A6 (hex) represents what _____? Type of operation performed at the transmitter to achieve effecient and reliable information transmission? Another name for multiplier current? A process that uses the orthogonality of sines and cosines that makes possible to transmit and receive to different signals simultaneously on the same carrier frequency? A good example of a pilot tone system used in commercial frequency modulation stations?

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