E0A08: What does SAR measure?

Synthetic Aperture Ratio of the human body

Signal Amplification Rating

The rate of RF energy reflected from stationary terrain

E1A10: If an amateur station is installed aboard a ship or aircraft, what condition must be met before the station is operated?

The amateur station operator must agree to not transmit when the main ship or aircraft radios are in use

It must have a power supply that is completely independent of the main ship or aircraft power supply

Its operator must have an FCC Marine or Aircraft endorsement on his or her amateur license

E1B12: What is the highest modulation index permitted at the highest modulation frequency for angle modulation?

.5

2.0

3.0

E1C07: What is meant by local control?

Controlling a station through a local auxiliary link

Automatically manipulating local station controls

Controlling a repeater using a portable handheld transceiver

E1D10: Which amateur stations are eligible to be telecommand stations?

Any amateur station designated by NASA

Any amateur station so designated by the ITU

All of these choices are correct

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

Allow the candidate to complete the examination, but invalidate the results

Immediately terminate everyones examination and close the session

E1F06: What is the National Radio Quiet Zone?

An area in Puerto Rico surrounding the Aricebo Radio Telescope

An area in New Mexico surrounding the White Sands Test Area

An area in Florida surrounding Cape Canaveral

E2A13: What type of satellite appears to stay in one position in the sky?

HEO

Geomagnetic

LEO

E2B02: How many horizontal lines make up a fast-scan (NTSC) television frame?

30

60

1080

E2C09: 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

E2D01: Which of the following digital modes is especially designed for use for meteor scatter signals?

WSPR

Hellschreiber

APRS

E2E05: How does ARQ accomplish error correction?

Special binary codes provide automatic correction

Special polynomial codes provide automatic correction

If errors are detected, redundant data is substituted

E3A01: What is the approximate maximum separation measured along the surface of the Earth between two stations communicating by Moon bounce?

500 miles, if the Moon is at perigee

2000 miles, if the Moon is at apogee

5000 miles, if the Moon is at perigee

E3B09: At what time of day is gray-line propagation most likely to occur?

When the Sun is directly above the location of the transmitting station

When the Sun is directly overhead at the middle of the communications path between the two stations

When the Sun is directly above the location of the receiving station

E3C07: 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 horizontal beam width increases with height

The horizontal beam width decreases with height

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

SWR

Q

Time

E4B09: What is indicated if the current reading on an RF ammeter placed in series with the antenna feed line of a transmitter increases as the transmitter is tuned to resonance?

There is possibly a short to ground in the feed line

The transmitter is not properly neutralized

There is an impedance mismatch between the antenna and feed line

E4C04: What is the definition of the noise figure of a receiver?

The ratio of atmospheric noise to phase noise

The noise bandwidth in Hertz compared to the theoretical bandwidth of a resistive network

The ratio of thermal noise to atmospheric noise

E4D12: What is the term for the reduction in receiver sensitivity caused by a strong signal near the received frequency?

Quieting

Cross-modulation interference

Squelch gain rollback

E4E08: What type of signal is picked up by electrical wiring near a radio antenna?

An electrical-sparking signal

A differential-mode signal at the AC power line frequency

Harmonics of the AC power line frequency

E5A15: What is the resonant frequency of a series RLC circuit if R is 56 ohms, L is 40 microhenrys and C is 200 picofarads?

3.76 MHz

11.18 MHz

22.36 MHz

E5B09: What is the relationship between the current through a capacitor and the voltage across a capacitor?

Voltage and current are in phase

Voltage and current are 180 degrees out of phase

Voltage leads current by 90 degrees

E5C09: When using rectangular coordinates to graph the impedance of a circuit, what does the horizontal axis represent?

Reactive component

The sum of the reactive and resistive components

The difference between the resistive and reactive components

E5D09: What happens to reactive power in an AC circuit that has both ideal inductors and ideal capacitors?

It is dissipated as heat in the circuit

It is dissipated as kinetic energy in the circuit

It is dissipated in the formation of inductive and capacitive fields

E6A16: What are the majority charge carriers in N-type semiconductor material?

Holes

Free protons

Free neutrons

E6B10: In Figure E6-3, what is the schematic symbol for a light-emitting diode?

1

6

7

E6C12: What is BiCMOS logic?

A logic device with two CMOS circuits per package

An FET logic family based on bimetallic semiconductors

A logic family based on bismuth CMOS devices

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

E6F10: What is the most common type of photovoltaic cell used for electrical power generation?

Selenium

Cadmium Sulfide

Copper oxide

E7A03: Which of the following can divide the frequency of a pulse train by 2?

An XOR gate

An OR gate

A multiplexer

E7B09: Which of the following describes how the loading and tuning capacitors are to be adjusted when tuning a vacuum tube RF power amplifier that employs a pi-network output circuit?

The loading capacitor is set to maximum capacitance and the tuning capacitor is adjusted for minimum allowable plate current

The tuning capacitor is set to maximum capacitance and the loading capacitor is adjusted for minimum plate permissible current

The loading capacitor is adjusted to minimum plate current while alternately adjusting the tuning capacitor for maximum allowable plate current

E7C11: Which of the following is the common name for a filter network which is equivalent to two L networks connected back-to-back with the inductors in series and the capacitors in shunt at the input and output?

Pi-L

Cascode

Omega

E7D08: What type of circuit is shown in Figure E7-3?

Switching voltage regulator

Grounded emitter amplifier

Emitter follower

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

E7F06: What is one purpose of a marker generator?

To add audio markers to an oscilloscope

To provide a frequency reference for a phase locked loop

To add time signals to a transmitted signal

E7G04: Which of the following is a type of capacitor best suited for use in high-stability op-amp RC active filter circuits?

Electrolytic

Disc ceramic

Paper

E7H02: What condition must exist for a circuit to oscillate?

It must have at least two stages

It must be neutralized

It must have negative feedback sufficient to cancel the input signal

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

Human speech

Video signals

Data

E8B04: What is the modulation index of an FM-phone signal having a maximum carrier deviation of plus or minus 6 kHz when modulated with a 2-kHz modulating frequency?

6000

2000

1/3

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

E8D09: What is meant by circularly polarized electromagnetic waves?

Waves with an electric field bent into a circular shape

Waves that circle the Earth

Waves produced by a loop antenna

E9A11: Which of the following choices is a way to improve the efficiency of a ground-mounted quarter-wave vertical antenna?

Isolate the coax shield from ground

Shorten the radiating element

Reduce the diameter of the radiating element

E9B05: What usually occurs if a Yagi antenna is designed solely for maximum forward gain?

The front-to-back ratio increases

The frequency response is widened over the whole frequency band

The SWR is reduced

E9C07: What type of antenna pattern over real ground is shown in Figure E9-2?

Azimuth

Radiation resistance

Polarization

E9D03: How does the beamwidth of an antenna vary as the gain is increased?

It increases geometrically

It increases arithmetically

It is essentially unaffected

E9E08: Which of the following measurements is characteristic of a mismatched transmission line?

An SWR less than 1:1

A reflection coefficient greater than 1

A dielectric constant greater than 1

E9F01: What is the velocity factor of a transmission line?

The ratio of the characteristic impedance of the line to the terminating impedance

The index of shielding for coaxial cable

The velocity of the wave in the transmission line multiplied by the velocity of light in a vacuum

E9G09: What third family of circles is often added to a Smith chart during the process of solving problems?

Antenna-length circles

Coaxial-length circles

Radiation-pattern circles

E9H07: Why is it advisable to use an RF attenuator on a receiver being used for direction finding?

It narrows the bandwidth of the received signal to improve signal to noise ratio

It compensates for the effects of an isotropic antenna, thereby improving directivity

It reduces loss of received signals caused by antenna pattern nulls, thereby increasing sensitivity