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When evaluating a site with multiple transmitters operating at the same time, the operators and licensees of which transmitters are responsible for mitigating over-exposure situations?
Which of the following describes authorization or licensing required when operating an amateur station aboard a U.S.-registered vessel in international waters?
Which of the following constitutes a spurious emission?
What is the maximum permissible duration of a remotely controlled station's transmissions if its control link malfunctions?
Which UHF amateur bands have frequencies authorized for space stations?
What must the VE team do with the application form if the examinee does not pass the exam?
Amateur stations may not transmit in which of the following frequency segments if they are located in the contiguous 48 states and north of Line A?
What do the terms L band and S band specify regarding satellite communications?
What is the name of the signal component that carries color information in NTSC video?
Which of the following contacts may be confirmed through the U.S. QSL bureau system?
Which of the following describes a method of establishing EME contacts?
How do ALE stations establish contact?
What is the approximate maximum separation measured along the surface of the Earth between two stations communicating by EME?
Which amateur bands typically support long-path propagation?
How does the maximum range of ground-wave propagation change when the signal frequency is increased?
Which of the following displays multiple digital signal states simultaneously?
Which of the following factors most affects the accuracy of a frequency counter?
What does a receiver noise floor of -174 dBm represent?
Which of the following may reduce or eliminate intermodulation interference in a repeater caused by another transmitter operating in close proximity?
How can conducted and radiated noise caused by an automobile alternator be suppressed?
What is the magnitude of the impedance of a parallel RLC circuit at resonance?
What is the phase angle between the voltage across and the current through a series RLC circuit if XC is 500 ohms, R is 1 kilohm, and XL is 250 ohms?
Which of the following represents an inductive reactance in polar coordinates?
What is the power factor of an RL circuit having a 60-degree phase angle between the voltage and the current?
Which of the following indicates that a silicon NPN junction transistor is biased on?
What is a common use for point-contact diodes?
What is the function of hysteresis in a comparator?
Which type of core material decreases inductance when inserted into a coil?
What advantage does surface-mount technology offer at RF compared to using through-hole components?
What is a solid-state relay?
What type of logic defines "1" as a high voltage?
Why are odd-order rather than even-order intermodulation distortion products of concern in linear power amplifiers?
How are the capacitors and inductors of a low-pass filter Pi-network arranged between the network's input and output?
What is the purpose of Q1 in the circuit shown in Figure E7-2?
What circuit is added to an FM transmitter to boost the higher audio frequencies?
What is meant by direct digital conversion as applied to software defined radios?
What is the typical input impedance of an op-amp?
What is a microphonic?
What type of wave does a Fourier analysis show to be made up of sine waves of a given fundamental frequency plus all its harmonics?
What is digital time division multiplexing?
What is the approximate bandwidth of a 13-WPM International Morse Code transmission?
What is one advantage of using ASCII code for data communications?
What term describes station output, taking into account all gains and losses?
What is the principle of a Method of Moments analysis?
Which of the following describes a G5RV antenna?
Where should a high Q loading coil be placed to minimize losses in a shortened vertical antenna?
What is a use for a Wilkinson divider?
How does ladder line compare to small-diameter coaxial cable such as RG-58 at 50 MHz?
What do the arcs on a Smith chart represent?
What is an advantage of placing a grounded electrostatic shield around a small loop direction-finding antenna?