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What is the maximum power output permitted on the 60 meter band?
Within what distance must an amateur station protect an FCC monitoring facility from harmful interference?
What is the maximum permissible duration of a remotely controlled station's transmissions if its control link malfunctions?
Which amateur service HF 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?
Who may be the control operator of an auxiliary station?
On what band would a satellite receive signals if it were operating in mode U/V?
What is the approximate bandwidth of a slow-scan TV signal?
Why might a DX station state that they are listening on another frequency?
What is one advantage of using JT65 coding?
Which type of digital mode does not support keyboard-to-keyboard operation?
From the contiguous 48 states, in which approximate direction should an antenna be pointed to take maximum advantage of aurora propagation?
At what time of day is Sporadic-E propagation most likely to occur?
How does the intensity of an X3 flare compare to that of an X2 flare?
How is the compensation of an oscilloscope probe typically adjusted?
What is an advantage of using a bridge circuit to measure impedance?
Which of the following choices is a good reason for selecting a high frequency for the design of the IF in a conventional HF or VHF communications receiver?
Which describes the most significant effect of an off-frequency signal when it is causing cross-modulation interference to a desired signal?
What is one type of electrical interference that might be caused by the operation of a nearby personal computer?
What is an effect of increasing Q in a resonant circuit?
What is admittance?
If you plot the impedance of a circuit using the rectangular coordinate system and find the impedance point falls on the right side of the graph on the horizontal axis, what do you know about the circuit?
How many watts are consumed in a circuit having a power factor of 0.2 if the input is 100-VAC at 4 amperes?
What is the name given to an impurity atom that adds holes to a semiconductor crystal structure?
What is one common use for PIN diodes?
In Figure E6-5, what is the schematic symbol for a NOR gate?
What is the definition of saturation in a ferrite core inductor?
Which of the following materials is likely to provide the highest frequency of operation when used in MMICs?
What is the photovoltaic effect?
What logical operation does an OR gate perform?
What is one way to prevent thermal runaway in a bipolar transistor amplifier?
Which of the following is the common name for a filter network which is equivalent to two L-networks connected back-to-back with the two inductors in series and the capacitors in shunt at the input and output?
What is one purpose of a "bleeder" resistor in a conventional unregulated power supply?
Which of the following can be used to generate FM phone emissions?
How might the sampling rate of an existing digital signal be adjusted by a factor of 3/4?
What absolute voltage gain can be expected from the circuit in Figure E7-4 when R1 is 3300 ohms and RF is 47 kilohms?
Which describes 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 of its harmonics?
How does the modulation index of a phase-modulated emission vary with RF carrier frequency (the modulated frequency)?
What is the necessary bandwidth of a 4800-Hz frequency shift, 9600-baud ASCII FM transmission?
What is a common cause of overmodulation of AFSK signals?
What is the effective radiated power of a repeater station with 200 watts transmitter power output, 2 dB feed line loss, 2.8 dB duplexer loss, 1.2 dB circulator loss, and 7 dBi antenna gain?
What may occur when a directional antenna is operated at different frequencies within the band for which it was designed?
What is the radiation pattern of two 1/4-wavelength vertical antennas spaced 1/2-wavelength apart and fed 180 degrees out of phase?
What happens to the bandwidth of an antenna as it is shortened through the use of loading coils?
What is the name of the matching system that uses a section of transmission line connected in parallel with the feed line at or near the feed point?
What impedance does a 1/4 wavelength transmission line present to a generator when the line is open at the far end?
Which of the following can be calculated using a Smith chart?
What is the triangulation method of direction finding?
How may dangerous levels of carbon monoxide from an emergency generator be detected?