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Which of the following is used to determine RF exposure from a transmitted signal?
According to the National Electrical Code, what is the minimum wire size that may be used safely for wiring with a 20-ampere circuit breaker?
Which HF bands have segments exclusively allocated to Amateur Extra licensees?
Which of the following one-way transmissions are permitted?
What is the maximum symbol rate permitted for RTTY or data emission transmissions on the 10-meter band?
Volunteer Examiners are accredited by what organization?
Which of the following would disqualify a third party from participating in sending a message via an amateur station?
Which mode is most commonly used for voice communications on the 17- and 12-meter bands?
Who may be the control operator of an amateur station transmitting in RACES to assist relief operations during a disaster?
What does it mean when a CW operator sends “KN” at the end of a transmission?
Which of the following indicates that you are looking for an HF contact with any station?
What is another name for a Winlink Remote Message Server?
What does the K-index measure?
What does MUF stand for?
What is a characteristic of HF scatter?
What happens as a receiver’s noise reduction control level is increased?
Which of the following is the best instrument to use for checking the keying waveform of a CW transmitter?
What sound is heard from an audio device experiencing RF interference from a CW transmitter?
What frequency range is occupied by a 3 kHz LSB signal when the displayed carrier frequency is set to 7.178 MHz?
In what configuration are the individual cells in a solar panel connected together?
What is impedance?
How many watts of electrical power are consumed by a 12 VDC light bulb that draws 0.2 amperes?
What is the capacitance of a 20-microfarad capacitor connected in series with a 50-microfarad capacitor?
What is the minimum allowable discharge voltage for maximum life of a standard 12-volt lead-acid battery?
What is an SMA connector?
Which symbol in figure G7-1 represents an NPN junction transistor?
In a Class A amplifier, what percentage of the time does the amplifying device conduct?
Which of the following is characteristic of a direct digital synthesizer (DDS)?
What is the name of the process that changes the phase angle of an RF signal to convey information?
What is the total bandwidth of an FM phone transmission having 5 kHz deviation and 3 kHz modulating frequency?
Which of the following describes Baudot code?
What is the nominal characteristic impedance of “window line” transmission line?
Which of the following best describes the radiation pattern of a quarter-wave ground-plane vertical antenna?
What does “front-to-back ratio” mean in reference to a Yagi antenna?
In which direction is the maximum radiation from a VHF/UHF “halo” antenna?