FCC Question ID
E1A02
When using a transceiver that displays the carrier frequency of phone signals, which of the following displayed frequencies represents the lowest frequency at which a properly adjusted LSB emission will be totally within the band?
The exact lower band edge
300 Hz above the lower band edge
1 kHz above the lower band edge
3 kHz above the lower band edge
E1B06
Which of the following additional rules apply if you are installing an amateur station antenna at a site at or near a public use airport?
You may have to notify the Federal Aviation Administration and register it with the FCC as required by Part 17 of FCC rules
No special rules apply if your antenna structure will be less than 300 feet in height
You must file an Environmental Impact Statement with the EPA before construction begins
You must obtain a construction permit from the airport zoning authority
E1C01
What is a remotely controlled station?
A station operated away from its regular home location
A station controlled by someone other than the licensee
A station operating under automatic control
A station controlled indirectly through a control link
E1D08
Which VHF amateur service bands have frequencies available for space stations?
6 meters and 2 meters
6 meters, 2 meters, and 1.25 meters
2 meters and 1.25 meters
2 meters
E1E07
What should a VE do if a candidate fails to comply with the examiner’s instructions during an amateur operator license examination?
Warn the candidate that continued failure to comply will result in termination of the examination
Immediately terminate the candidate’s examination
Allow the candidate to complete the examination, but invalidate the results
Immediately terminate everyone’s examination and close the session
E1F02
What privileges are authorized in the U.S. to persons holding an amateur service license granted by the government of Canada?
None, they must obtain a U.S. license
All privileges of the Extra Class license
The operating terms and conditions of the Canadian amateur service license, not to exceed U.S. Extra Class privileges
Full privileges, up to and including those of the Extra Class License, on the 80, 40, 20, 15, and 10 meter bands
E2A08
Why should effective radiated power to a satellite which uses a linear transponder be limited?
To prevent creating errors in the satellite telemetry
To avoid reducing the downlink power to all other users
To prevent the satellite from emitting out-of-band signals
To avoid interfering with terrestrial QSOs
E2B06
What is vestigial sideband modulation?
Amplitude modulation in which one complete sideband and a portion of the other are transmitted
A type of modulation in which one sideband is inverted
Narrow-band FM modulation achieved by filtering one sideband from the audio before frequency modulating the carrier
Spread spectrum modulation achieved by applying FM modulation following single sideband amplitude modulation
E2C10
Why might a DX station state that they are listening on another frequency?
Because the DX station may be transmitting on a frequency that is prohibited to some responding stations
To separate the calling stations from the DX station
To improve operating efficiency by reducing interference
All of these choices are correct
E2D04
What is the purpose of digital store-and-forward functions on an Amateur Radio satellite?
To upload operational software for the transponder
To delay download of telemetry between satellites
To store digital messages in the satellite for later download by other stations
To relay messages between satellites
E2E10
Which of these digital modes has the narrowest bandwidth?
E3A15
What is an electromagnetic wave?
A wave of alternating current, in the core of an electromagnet
A wave consisting of two electric fields at parallel right angles to each other
A wave consisting of an electric field and a magnetic field oscillating at right angles to each other
A wave consisting of two magnetic fields at right angles to each other
E3B11
At what time of day is Sporadic-E propagation most likely to occur?
E3C11
What does VOACAP software model?
AC voltage and impedance
VHF radio propagation
HF propagation
AC current and impedance
E4A07
Which of the following is an advantage of using an antenna analyzer compared to an SWR bridge to measure antenna SWR?
Antenna analyzers automatically tune your antenna for resonance
Antenna analyzers do not need an external RF source
Antenna analyzers display a time-varying representation of the modulation envelope
All of these choices are correct
E4B08
Which of the following is a characteristic of a good DC voltmeter?
High reluctance input
Low reluctance input
High impedance input
Low impedance input
E4C01
What is an effect of excessive phase noise in the local oscillator section of a receiver?
It limits the receiver’s ability to receive strong signals
It reduces receiver sensitivity
It decreases receiver third-order intermodulation distortion dynamic range
It can cause strong signals on nearby frequencies to interfere with reception of weak signals
E4D12
What is the term for the reduction in receiver sensitivity caused by a strong signal near the received frequency?
Desensitization
Quieting
Cross-modulation interference
Squelch gain rollback
E4E15
Which of the following can cause shielded cables to radiate or receive interference?
Low inductance ground connections at both ends of the shield
Common mode currents on the shield and conductors
Use of braided shielding material
Tying all ground connections to a common point resulting in differential mode currents in the shield
E5A09
How is the Q of an RLC parallel resonant circuit calculated?
Reactance of either the inductance or capacitance divided by the resistance
Reactance of either the inductance or capacitance multiplied by the resistance
Resistance divided by the reactance of either the inductance or capacitance
Reactance of the inductance multiplied by the reactance of the capacitance
E5B01
What is the term for the time required for the capacitor in an RC circuit to be charged to 63.2% of the applied voltage?
An exponential rate of one
One time constant
One exponential period
A time factor of one
E5C06
What does the impedance 50–j25 represent?
50 ohms resistance in series with 25 ohms inductive reactance
50 ohms resistance in series with 25 ohms capacitive reactance
25 ohms resistance in series with 50 ohms inductive reactance
25 ohms resistance in series with 50 ohms capacitive reactance
E5D04
Why are short connections necessary at microwave frequencies?
To increase neutralizing resistance
To reduce phase shift along the connection
Because of ground reflections
To reduce noise figure
E6A10
In Figure E6-2, what is the schematic symbol for an N-channel dual-gate MOSFET?
E6B02
What is an important characteristic of a Schottky diode as compared to an ordinary silicon diode when used as a power supply rectifier?
Much higher reverse voltage breakdown
Controlled reverse avalanche voltage
Enhanced carrier retention time
Less forward voltage drop
E6C09
What is a Programmable Logic Device (PLD)?
A device to control industrial equipment
A programmable collection of logic gates and circuits in a single integrated circuit
Programmable equipment used for testing digital logic integrated circuits
An algorithm for simulating logic functions during circuit design
E6D09
What devices are commonly used as VHF and UHF parasitic suppressors at the input and output terminals of a transistor HF amplifier?
Electrolytic capacitors
Butterworth filters
Ferrite beads
Steel-core toroids
E6E05
Which of the following noise figure values is typical of a low-noise UHF preamplifier?
E6F14
Which of the following is true of LCD displays?
They are hard to view in high ambient light conditions
They may be hard to view through polarized lenses
They only display alphanumeric symbols
All of these choices are correct
E7A07
What logical operation does a NAND gate perform?
It produces logic "0" at its output only when all inputs are logic "0"
It produces logic "1" at its output only when all inputs are logic "1"
It produces logic "0" at its output if some but not all inputs are logic "1"
It produces logic "0" at its output only when all inputs are logic "1"
E7B02
What is a Class D amplifier?
A type of amplifier that uses switching technology to achieve high efficiency
A low power amplifier that uses a differential amplifier for improved linearity
An amplifier that uses drift-mode FETs for high efficiency
A frequency doubling amplifier
E7C13
What is one advantage of a Pi-matching network over an L-matching network consisting of a single inductor and a single capacitor?
The Q of Pi-networks can be varied depending on the component values chosen
L-networks cannot perform impedance transformation
Pi-networks have fewer components
Pi-networks are designed for balanced input and output
E7D16
When several electrolytic filter capacitors are connected in series to increase the operating voltage of a power supply filter circuit, why should resistors be connected across each capacitor?
To equalize, as much as possible, the voltage drop across each capacitor
To provide a safety bleeder to discharge the capacitors when the supply is off
To provide a minimum load current to reduce voltage excursions at light loads
All of these choices are correct
E7E11
Which type of detector is used for demodulating SSB signals?
E7F02
What kind of digital signal processing audio filter is used to remove unwanted noise from a received SSB signal?
An adaptive filter
A crystal-lattice filter
A Hilbert-transform filter
A phase-inverting filter
E7G01
What is the typical output impedance of an integrated circuit op-amp?
E7H14
What is a phase-locked loop circuit?
An electronic servo loop consisting of a ratio detector, reactance modulator, and voltage-controlled oscillator
An electronic circuit also known as a monostable multivibrator
An electronic servo loop consisting of a phase detector, a low-pass filter, a voltage-controlled oscillator, and a stable reference oscillator
An electronic circuit consisting of a precision push-pull amplifier with a differential input
E8A12
What is an advantage of using digital signals instead of analog signals to convey the same information?
Less complex circuitry is required for digital signal generation and detection
Digital signals always occupy a narrower bandwidth
Digital signals can be regenerated multiple times without error
All of these choices are correct
E8B09
What is meant by deviation ratio?
The ratio of the audio modulating frequency to the center carrier frequency
The ratio of the maximum carrier frequency deviation to the highest audio modulating frequency
The ratio of the carrier center frequency to the audio modulating frequency
The ratio of the highest audio modulating frequency to the average audio modulating frequency
E8C11
What is the relationship between symbol rate and baud?
They are the same
Baud is twice the symbol rate
Symbol rate is only used for packet-based modes
Baud is only used for RTTY
E8D01
Why are received spread spectrum signals resistant to interference?
Signals not using the spread spectrum algorithm are suppressed in the receiver
The high power used by a spread spectrum transmitter keeps its signal from being easily overpowered
The receiver is always equipped with a digital blanker
If interference is detected by the receiver it will signal the transmitter to change frequencies
E9A08
What is meant by antenna bandwidth?
Antenna length divided by the number of elements
The frequency range over which an antenna satisfies a performance requirement
The angle between the half-power radiation points
The angle formed between two imaginary lines drawn through the element ends
E9B12
What is the far field of an antenna?
The region of the ionosphere where radiated power is not refracted
The region where radiated power dissipates over a specified time period
The region where radiated field strengths are obstructed by objects of reflection
The region where the shape of the antenna pattern is independent of distance
E9C13
What is the main effect of placing a vertical antenna over an imperfect ground?
It causes increased SWR
It changes the impedance angle of the matching network
It reduces low-angle radiation
It reduces losses in the radiating portion of the antenna
E9D05
What is a disadvantage of using a multiband trapped antenna?
It might radiate harmonics
It radiates the harmonics and fundamental equally well
It is too sharply directional at lower frequencies
It must be neutralized
E9E01
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?
The gamma matching system
The delta matching system
The omega matching system
The stub matching system
E9F09
What is the approximate physical length of a solid polyethylene dielectric coaxial transmission line that is electrically one- quarter wavelength long at 7.2 MHz?
E9G07
On the Smith chart shown in Figure E9-3, what is the only straight line shown?
The reactance axis
The current axis
The voltage axis
The resistance axis
E9H02
Which is generally true for low band (160 meter and 80 meter) receiving antennas?
Atmospheric noise is so high that gain over a dipole is not important
They must be erected at least 1/2 wavelength above the ground to attain good directivity
Low loss coax transmission line is essential for good performance
All of these choices are correct