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
E1B09
Which amateur stations may be operated under RACES rules?
Only those club stations licensed to Amateur Extra class operators
Any FCC-licensed amateur station except a Technician class
Any FCC-licensed amateur station certified by the responsible civil defense organization for the area served
Any FCC-licensed amateur station participating in the Military Auxiliary Radio System (MARS)
E1C06
Which of the following statements concerning remotely controlled amateur stations is true?
Only Extra Class operators may be the control operator of a remote station
A control operator need not be present at the control point
A control operator must be present at the control point
Repeater and auxiliary stations may not be remotely controlled
E1D09
Which UHF amateur service bands have frequencies available for a space station?
E1E11
What must the VE team do if an examinee scores a passing grade on all examination elements needed for an upgrade or new license?
Photocopy all examination documents and forward them to the FCC for processing
Three VEs must certify that the examinee is qualified for the license grant and that they have complied with the administering VE requirements
Issue the examinee the new or upgrade license
All these choices are correct
E1F09
Which of the following conditions apply when transmitting spread spectrum emission?
A station transmitting SS emission must not cause harmful interference to other stations employing other authorized emissions
The transmitting station must be in an area regulated by the FCC or in a country that permits SS emissions
The transmission must not be used to obscure the meaning of any communication
All of these choices are correct
E2A06
On what band would a satellite receive signals if it were operating in mode U/V?
435 MHz - 438 MHz
144 MHz - 146 MHz
50.0 MHz - 50.2 MHz
29.5 MHz - 29.7 MHz
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
E2C09
What type of equipment is commonly used to implement a ham radio mesh network?
A 2 meter VHF transceiver with a 1200 baud modem
An optical cable connection between the USB ports of 2 separate computers
A standard wireless router running custom software
A 440 MHz transceiver with a 9600 baud modem
E2D11
Which of the following data are used by the APRS network to communicate your location?
Polar coordinates
Time and frequency
Radio direction finding spectrum analysis
Latitude and longitude
E2E01
Which type of modulation is common for data emissions below 30 MHz?
DTMF tones modulating an FM signal
FSK
Pulse modulation
Spread spectrum
E3A02
What characterizes libration fading of an EME signal?
A slow change in the pitch of the CW signal
A fluttery irregular fading
A gradual loss of signal as the Sun rises
The returning echo is several hertz lower in frequency than the transmitted signal
E3B14
What happens to linearly polarized radio waves that split into ordinary and extraordinary waves in the ionosphere?
They are bent toward the magnetic poles
Their polarization is randomly modified
They become elliptically polarized
They become phase-locked
E3C04
What does the value of Bz (B sub Z) represent?
Geomagnetic field stability
Critical frequency for vertical transmissions
Direction and strength of the interplanetary magnetic field
Duration of long-delayed echoes
E4A03
Which of the following test instruments is used to display spurious signals and/or intermodulation distortion products in an SSB transmitter?
A wattmeter
A spectrum analyzer
A logic analyzer
A time-domain reflectometer
E4B13
Which S parameter is equivalent to forward gain?
E4C05
What does a value of -174 dBm/Hz represent with regard to the noise floor of a receiver?
The minimum detectable signal as a function of receive frequency
The theoretical noise at the input of a perfect receiver at room temperature
The noise figure of a 1 Hz bandwidth receiver
The galactic noise contribution to minimum detectable signal
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
E4E06
What is a major cause of atmospheric static?
Solar radio frequency emissions
Thunderstorms
Geomagnetic storms
Meteor showers
E5A14
What is the resonant frequency of a series RLC circuit if R is 22 ohms, L is 50 microhenrys and C is 40 picofarads?
E5B13
What letter is commonly used to represent susceptance?
E5C11
What do the two numbers that are used to define a point on a graph using rectangular coordinates represent?
The magnitude and phase of the point
The sine and cosine values
The coordinate values along the horizontal and vertical axes
The tangent and cotangent values
E5D14
What is reactive power?
Wattless, nonproductive power
Power consumed in wire resistance in an inductor
Power lost because of capacitor leakage
Power consumed in circuit Q
E6A11
In Figure E6-2, what is the schematic symbol for a P-channel junction FET?
E6B03
What special type of diode is capable of both amplification and oscillation?
E6C03
What is tri-state logic?
Logic devices with 0, 1, and high impedance output states
Logic devices that utilize ternary math
Low power logic devices designed to operate at 3 volts
Proprietary logic devices manufactured by Tri-State Devices
E6D05
What is one reason for using ferrite cores rather than powdered-iron in an inductor?
Ferrite toroids generally have lower initial permeability
Ferrite toroids generally have better temperature stability
Ferrite toroids generally require fewer turns to produce a given inductance value
Ferrite toroids are easier to use with surface mount technology
E6E02
Which of the following device packages is a through-hole type?
E6F02
What happens to the conductivity of a photoconductive material when light shines on it?
E7A11
What type of logic defines "1" as a high voltage?
E7B05
What can be done to prevent unwanted oscillations in an RF power amplifier?
Tune the stage for maximum SWR
Tune both the input and output for maximum power
Install parasitic suppressors and/or neutralize the stage
Use a phase inverter in the output filter
E7C10
Which of the following filters would be the best choice for use in a 2 meter repeater duplexer?
E7D14
What is one purpose of a "bleeder" resistor in a conventional unregulated power supply?
To cut down on waste heat generated by the power supply
To balance the low-voltage filament windings
To improve output voltage regulation
To boost the amount of output current
E7E02
What is the function of a reactance modulator?
To produce PM signals by using an electrically variable resistance
To produce AM signals by using an electrically variable inductance or capacitance
To produce AM signals by using an electrically variable resistance
To produce PM signals by using an electrically variable inductance or capacitance
E7F07
What function can a Fast Fourier Transform perform?
Converting analog signals to digital form
Converting digital signals to analog form
Converting digital signals from the time domain to the frequency domain
Converting 8-bit data to 16 bit data
E7G05
How can unwanted ringing and audio instability be prevented in a multi-section op-amp RC audio filter circuit?
Restrict both gain and Q
Restrict gain but increase Q
Restrict Q but increase gain
Increase both gain and Q
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
E8A01
What is the name of the process that shows that a square wave is made up of a sine wave plus all of its odd harmonics?
Fourier analysis
Vector analysis
Numerical analysis
Differential analysis
E8B01
What is the term for the ratio between the frequency deviation of an RF carrier wave and the modulating frequency of its corresponding FM-phone signal?
FM compressibility
Quieting index
Percentage of modulation
Modulation index
E8C03
When performing phase shift keying, why is it advantageous to shift phase precisely at the zero crossing of the RF carrier?
This results in the least possible transmitted bandwidth for the particular mode
It is easier to demodulate with a conventional, non-synchronous detector
It improves carrier suppression
All of these choices are correct
E8D03
How does the spread spectrum technique of frequency hopping work?
If interference is detected by the receiver it will signal the transmitter to change frequencies
If interference is detected by the receiver it will signal the transmitter to wait until the frequency is clear
A pseudo-random binary bit stream is used to shift the phase of an RF carrier very rapidly in a particular sequence
The frequency of the transmitted signal is changed very rapidly according to a particular sequence also used by the receiving station
E9A13
How much gain does an antenna have compared to a 1/2-wavelength dipole when it has 12 dB gain over an isotropic antenna?
E9B02
In the antenna radiation pattern shown in Figure E9-1, what is the front-to-back ratio?
E9C15
How does the radiation pattern of a horizontally polarized 3-element beam antenna vary with its height above ground?
The main lobe takeoff angle increases with increasing height
The main lobe takeoff angle decreases with increasing height
The horizontal beamwidth increases with height
The horizontal beamwidth decreases with height
E9D09
What is the function of a loading coil used as part of an HF mobile antenna?
To increase the SWR bandwidth
To lower the losses
To lower the Q
To cancel capacitive reactance
E9E05
How must the driven element in a 3-element Yagi be tuned to use a hairpin matching system?
The driven element reactance must be capacitive
The driven element reactance must be inductive
The driven element resonance must be lower than the operating frequency
The driven element radiation resistance must be higher than the characteristic impedance of the transmission line
E9F03
Why is the physical length of a coaxial cable transmission line shorter than its electrical length?
Skin effect is less pronounced in the coaxial cable
The characteristic impedance is higher in a parallel feed line
The surge impedance is higher in a parallel feed line
Electrical signals move more slowly in a coaxial cable than in air
E9G01
Which of the following can be calculated using a Smith chart?
Impedance along transmission lines
Radiation resistance
Antenna radiation pattern
Radio propagation
E9H01
When constructing a Beverage antenna, which of the following factors should be included in the design to achieve good performance at the desired frequency?
Its overall length must not exceed 1/4 wavelength
It must be mounted more than 1 wavelength above ground
It should be configured as a four-sided loop
It should be one or more wavelengths long