E0A04: When evaluating a site with multiple transmitters operating at the same time, the operators and licensees of which transmitters are responsible for mitigating over-exposure situations?

Only the most powerful transmitter

Only commercial transmitters

Each transmitter operating with a duty-cycle greater than 50%

E1A08: If a station in a message forwarding system inadvertently forwards a message that is in violation of FCC rules, who is primarily accountable for the rules violation?

The control operator of the packet bulletin board station

The control operators of all the stations in the system

The control operators of all the stations in the system not authenticating the source from which they accept communications

E1B04: What must be done before placing an amateur station within an officially designated wilderness area or wildlife preserve, or an area listed in the National Register of Historical Places?

A proposal must be submitted to the National Park Service

A letter of intent must be filed with the National Audubon Society

A form FSD-15 must be submitted to the Department of the Interior

E1C08: What is the maximum permissible duration of a remotely controlled station's transmissions if its control link malfunctions?

30 seconds

5 minutes

10 minutes

E1D11: Which amateur stations are eligible to operate as Earth stations?

Any amateur station whose licensee has filed a pre-space notification with the FCC's International Bureau

Only those of General, Advanced or Amateur Extra Class operators

Only those of Amateur Extra Class operators

E1E03: What is a Volunteer Examiner Coordinator?

A person who has volunteered to administer amateur operator license examinations

A person who has volunteered to prepare amateur operator license examinations

The person who has entered into an agreement with the FCC to be the VE session manager

E1F12: Who may be the control operator of an auxiliary station?

Any licensed amateur operator

Only General, Advanced or Amateur Extra Class operators

Only Amateur Extra Class operators

E2A05: What do the letters in a satellite's mode designator specify?

Power limits for uplink and downlink transmissions

The location of the ground control station

The polarization of uplink and downlink signals

E2B05: Which of the following is an advantage of using vestigial sideband for standard fast- scan TV transmissions?

The vestigial sideband carries the audio information

The vestigial sideband contains chroma information

Vestigial sideband provides high frequency emphasis to sharpen the picture

E2C01: Which of the following is true about contest operating?

Interference to other amateurs is unavoidable and therefore acceptable

It is mandatory to transmit the call sign of the station being worked as part of every transmission to that station

Every contest requires a signal report in the exchange

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 relay messages between satellites

E2E07: What is the typical bandwidth of a properly modulated MFSK16 signal?

31 Hz

550 Hz

2.16 kHz

E3A10: Which of the following is a good technique for making meteor-scatter contacts?

15 second timed transmission sequences with stations alternating based on location

Use of high speed CW or digital modes

Short transmission with rapidly repeated call signs and signal reports

E3B06: Which of the following amateur bands most frequently provides long-path propagation?

80 meters

10 meters

6 meters

E3C04: Which emission mode is best for Aurora propagation?

SSB

FM

RTTY

E4A02: Which of the following parameters would a spectrum analyzer display on the horizontal axis?

SWR

Q

Time

E4B13: How is the compensation of an oscilloscope probe typically adjusted?

A high frequency sine wave is displayed and the probe is adjusted for maximum amplitude

A frequency standard is displayed and the probe is adjusted until the deflection time is accurate

A DC voltage standard is displayed and the probe is adjusted until the displayed voltage is accurate

E4C08: How might lowering the noise figure affect receiver performance?

It would reduce the signal to noise ratio

It would reduce bandwidth

It would increase bandwidth

E4D06: What is the term for unwanted signals generated by the mixing of two or more signals?

Amplifier desensitization

Neutralization

Adjacent channel interference

E4E04: How can conducted and radiated noise caused by an automobile alternator be suppressed?

By installing filter capacitors in series with the DC power lead and by installing a blocking capacitor in the field lead

By installing a noise suppression resistor and a blocking capacitor in both leads

By installing a high-pass filter in series with the radio's power lead and a low-pass filter in parallel with the field lead

E5A05: What is the magnitude of the current at the input of a series RLC circuit as the frequency goes through resonance?

Minimum

R/L

L/R

E5B12: What is the phase angle between the voltage across and the current through a series RLC circuit if XC is 75 ohms, R is 100 ohms, and XL is 50 ohms?

76 degrees with the voltage lagging the current

14 degrees with the voltage leading the current

76 degrees with the voltage leading the current

E5C11: What do the two numbers represent that are used to define a point on a graph using rectangular coordinates?

The magnitude and phase of the point

The sine and cosine values

The tangent and cotangent values

E5D01: What is the result of skin effect?

As frequency decreases, RF current flows in a thinner layer of the conductor, closer to the surface

Thermal effects on the surface of the conductor increase the impedance

Thermal effects on the surface of the conductor decrease the impedance

E6A08: What term indicates the frequency at which the grounded-base current gain of a transistor has decreased to 0.7 of the gain obtainable at 1 kHz?

Corner frequency

Alpha rejection frequency

Beta cutoff frequency

E6B04: What type of semiconductor device is designed for use as a voltage-controlled capacitor?

Tunnel diode

Silicon-controlled rectifier

Zener diode

E6C05: Which of the following is an advantage of CMOS logic devices over TTL devices?

Differential output capability

Lower distortion

Immune to damage from static discharge

E6D08: What is one important reason for using powdered-iron toroids rather than ferrite toroids in an inductor?

Powdered-iron toroids generally have greater initial permeability

Powdered-iron toroids generally require fewer turns to produce a given inductance value

Powdered-iron toroids have higher power handling capacity

E6E01: What is a crystal lattice filter?

A power supply filter made with interlaced quartz crystals

An audio filter made with four quartz crystals that resonate at 1-kHz intervals

A filter with wide bandwidth and shallow skirts made using quartz crystals

E6F02: What happens to the conductivity of a photoconductive material when light shines on it?

It decreases

It stays the same

It becomes unstable

E7A06: What is a characteristic of a monostable multivibrator?

It is a clock that produces a continuous square wave oscillating between 1 and 0

It stores one bit of data in either a 0 or 1 state

It maintains a constant output voltage, regardless of variations in the input voltage

E7B18: Which of the following is a characteristic of a grounded-grid amplifier?

High power gain

High filament voltage

Low bandwidth

E7C09: What type of digital signal processing filter might be used to generate an SSB signal?

An adaptive filter

A notch filter

An elliptical filter

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 boost the amount of output current

E7E07: What is meant by the term baseband in radio communications?

The lowest frequency band that the transmitter or receiver covers

The unmodulated bandwidth of the transmitted signal

The basic oscillator frequency in an FM transmitter that is multiplied to increase the deviation and carrier frequency

E7F01: What is the purpose of a prescaler circuit?

It converts the output of a JK flip flop to that of an RS flip-flop

It multiplies a higher frequency signal so a low-frequency counter can display the operating frequency

It prevents oscillation in a low-frequency counter circuit

E7G07: What magnitude of voltage gain can be expected from the circuit in Figure E7-4 when R1 is 10 ohms and RF is 470 ohms?

0.21

94

24

E7H07: What is a magnetron oscillator?

An oscillator in which the output is fed back to the input by the magnetic field of a transformer

A crystal oscillator in which variable frequency is obtained by placing the crystal in a strong magnetic field

A reference standard oscillator in which the oscillations are synchronized by magnetic coupling to a rubidium gas tube

E8A12: What type of information can be conveyed using digital waveforms?

Human speech

Video signals

Data

E8B05: What is the deviation ratio of an FM-phone signal having a maximum frequency swing of plus-or-minus 5 kHz when the maximum modulation frequency is 3 kHz?

60

0.167

0.6

E8C04: What technique is used to minimize the bandwidth requirements of a PSK31 signal?

Zero-sum character encoding

Reed-Solomon character encoding

Use of trapezoidal data pulses

E8D03: What input-amplitude parameter is valuable in evaluating the signal-handling capability of a Class A amplifier?

RMS voltage

Average power

Resting voltage

E9A12: Which of the following factors determines ground losses for a ground-mounted vertical antenna operating in the 3-30 MHz range?

The standing-wave ratio

Distance from the transmitter

Take-off angle

E9B01: In the antenna radiation pattern shown in Figure E9-1, what is the 3-dB beamwidth?

75 degrees

25 degrees

30 degrees

E9C10: How many elevation lobes appear in the forward direction of the antenna radiation pattern shown in Figure E9-2?

3

1

7

E9D04: Why is it desirable for a ground-mounted satellite communications antenna system to be able to move in both azimuth and elevation?

So the antenna can be pointed away from interfering signals

So the antenna can be positioned to cancel the effects of Faraday rotation

To rotate antenna polarization to match that of the satellite

E9E13: What is the purpose of a Wilkinson divider?

It divides the operating frequency of a transmitter signal so it can be used on a lower frequency band

It is used to feed high-impedance antennas from a low-impedance source

It is used to feed low-impedance loads from a high-impedance source

E9F10: What impedance does a 1/8-wavelength transmission line present to a generator when the line is shorted at the far end?

A capacitive reactance

The same as the characteristic impedance of the line

The same as the input impedance to the final generator stage

E9G11: How are the wavelength scales on a Smith chart calibrated?

In fractions of transmission line electrical frequency

In fractions of antenna electrical wavelength

In fractions of antenna electrical frequency

E9H02: What is the effective radiated power relative to a dipole of a repeater station with 200 watts transmitter power output, 4-dB feed line loss, 3.2-dB duplexer loss, 0.8-dB circulator loss and 10-dBd antenna gain?

2000 watts

126 watts

300 watts