Which of the following must be done to insure that a crystal oscillator provides the frequency specified by the crystal manufacturer? A. Provide the crystal with a specified parallel inductance…
What is the output PEP from a transmitter if an oscilloscope measures 500 volts peak-to-peak across a 50 ohm resistive load connected to the transmitter output? A. 8.75 watts B….
In which type of circuit is current the same through all components? A. Series B. Parallel C. Resonant D. Branch The answer here is A. Series. The reason why is…
At what time of year is Sporadic E propagation most likely to occur? A. Around the solstices, especially the summer solstice B. Around the solstices, especially the winter solstice C….
What frequency range is occupied by a 3 kHz LSB signal when the displayed carrier frequency is set to 7.178 MHz? A. 7.178 to 7.181 MHz B. 7.178 to 7.184…
Which of these precautions should be taken when installing devices for lightning protection in a coaxial cable feed line? A. Include a parallel bypass switch for each protector so that…
What is an advantage of Gray code in digital communications where symbols are transmitted as multiple bits A. It increases security B. It has more possible states than simple binary…
Which of the following is a characteristic of a Class A amplifier? A. Low standby power B. High Efficiency C. No need for bias D. Low distortion By definition, a…
Which of the following is a good way to judge whether your uplink power is neither too low nor too high? A. Check your signal strength report in the telemetry…
What is meant by circularly polarized electromagnetic waves? A. Waves with an electric field bent into a circular shape B. Waves with a rotating electric field C. Waves that circle…