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Who must be in physical control of the station apparatus of an amateur station aboard any vessel or craft that is documented or registered in the United States?
What frequencies are authorized to an amateur station operating under RACES rules?
What is meant by local control?
What is the amateur satellite service?
What must the VE team do if an examinee scores a passing grade on all examination elements needed for an upgrade or new license?
When may an amateur station send a message to a business?
What is the direction of a descending pass for an amateur satellite?
What hardware, other than a receiver with SSB capability and a suitable computer, is needed to decode SSTV using Digital Radio Mondiale (DRM)?
Which of the following contacts may be confirmed through the U.S. QSL bureau system?
What type of modulation is used for JT65 contacts?
What is the difference between direct FSK and audio FSK?
Which of the following frequency range is most suited for meteor scatter communications?
What is the best time of day for transequatorial propagation?
What does the term ray tracing describe in regard to radio communications?
Which of the following parameters would a spectrum analyzer display on the vertical and horizontal axes?
Which of the following describes a method to measure intermodulation distortion in an SSB transmitter?
How is the noise figure of a receiver defined?
Why are third-order intermodulation products created within a receiver of particular interest compared to other products?
What is a common characteristic of interference caused by a touch controlled electrical device?
What is resonance in an electrical circuit?
What is admittance?
What coordinate system is often used to display the phase angle of a circuit containing resistance, inductive and/or capacitive reactance?
What is the power factor of an R-L circuit having a 45 degree phase angle between the voltage and the current?
Why does a PN-junction diode not conduct current when reverse biased?
What is the failure mechanism when a junction diode fails due to excessive current?
What is BiCMOS logic?
What is current in the primary winding of a transformer called if no load is attached to the secondary?
Which of the following device packages is a through-hole type?
What is the most common configuration of an optoisolator or optocoupler?
What logical operation does an OR gate perform?
Where on the load line of a Class A common emitter amplifier would bias normally be set?
Which of the following is a property of a T-network with series capacitors and a parallel shunt inductor?
What is one characteristic of a switching electronic voltage regulator?
What is a frequency discriminator stage in a FM receiver?
What is the function of decimation with regard to digital filters?
What is the typical output impedance of an integrated circuit op-amp?
Which of these functions can be performed by a phase-locked loop?
How many levels can an analog-to-digital converter with 8 bit resolution encode?
How does the modulation index of a phase-modulated emission vary with RF carrier frequency (the modulated frequency)?
What is an advantage of Gray code in digital communications where symbols are transmitted as multiple bits
What is one advantage of using ASCII code for data communications?
How is antenna efficiency calculated?
In the antenna radiation pattern shown in Figure E9-1, what is the front-to-side ratio?
Which of the following describes a Zepp antenna?
Which of the following would provide the best RF ground for your station?
What system matches a higher impedance transmission line to a lower impedance antenna by connecting the line to the driven element in two places spaced a fraction of a wavelength each side of element center?
Which of the following is a significant difference between foam dielectric coaxial cable and solid dielectric cable, assuming all other parameters are the same?
What are the two families of circles and arcs that make up a Smith chart?
What is the main drawback of a wire-loop antenna for direction finding?
What is the primary function of an external earth connection or ground rod?