E0A07: How may dangerous levels of carbon monoxide from an emergency generator be detected?

By the odor

Any ordinary smoke detector can be used

By the yellowish appearance of the gas

E1A01: When using a transceiver that displays the carrier frequency of phone signals, which of the following displayed frequencies represents the highest frequency at which a properly adjusted USB emission will be totally within the band?

The exact upper band edge

300 Hz below the upper band edge

1 kHz below the upper band edge

E1B07: Where must the carrier frequency of a CW signal be set to comply with FCC rules for 60 meter operation?

At the lowest frequency of the channel

At the highest frequency of the channel

On any frequency where the signal's sidebands are within the channel

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

E1D09: Which amateur service UHF bands have frequencies available for a space station?

70 cm

70 cm and 33 cm

33 cm and 13 cm

E1E13: What are the consequences of failing to appear for re-administration of an examination when so directed by the FCC?

The person may be fined or imprisoned

The licensee is disqualified from any future examination for an amateur operator license grant

All these choices are correct

E1F03: Under what circumstances may a dealer sell an external RF power amplifier capable of operation below 144 MHz if it has not been granted FCC certification?

The equipment dealer assembled it from a kit

It was imported from a manufacturer in a country that does not require certification of RF power amplifiers

It was imported from a manufacturer in another country, and it was certificated by that country's government

E2A12: What is one way to predict the location of a satellite at a given time?

By means of the Doppler data for the specified satellite

By subtracting the mean anomaly from the orbital inclination

By adding the mean anomaly to the orbital inclination

E2B09: What hardware, other than a receiver with SSB capability and a suitable computer, is needed to decode SSTV using Digital Radio Mondiale (DRM)?

A special IF converter

A special front end limiter

A special notch filter to remove synchronization pulses

E2C07: What is the Cabrillo format?

A method of exchanging information during a contest QSO

The most common set of contest rules

The rules of order for meetings between contest sponsors

E2D02: What is the definition of baud?

The number of characters transmitted per second

The number of characters transmitted per minute

The number of words transmitted per minute

E2E11: What is the difference between direct FSK and audio FSK?

Audio FSK has a superior frequency response

Direct FSK uses a DC-coupled data connection

Audio FSK can be performed anywhere in the transmit chain

E3A02: What characterizes libration fading of an Earth-Moon-Earth signal?

A slow change in the pitch of the CW signal

A gradual loss of signal as the Sun rises

The returning echo is several Hertz lower in frequency than the transmitted signal

E3B04: What type of propagation is probably occurring if an HF beam antenna must be pointed in a direction 180 degrees away from a station to receive the strongest signals?

Sporadic-E

Transequatorial

Auroral

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

E4A09: Which of the following describes a good method for measuring the intermodulation distortion of your own PSK signal?

Multiply the ALC level on the transmitter during a normal transmission by the average power output

Use an RF voltmeter coupled to the transmitter output using appropriate isolation to prevent damage to the meter

All of these choices are correct

E4B04: If a frequency counter with a specified accuracy of +/- 0.1 ppm reads 146,520,000 Hz, what is the most the actual frequency being measured could differ from the reading?

0.1 MHz

1.4652 Hz

1.4652 kHz

E4C02: Which of the following portions of a receiver can be effective in eliminating image signal interference?

A narrow IF filter

A notch filter

A properly adjusted product detector

E4D14: Which of the following is a way to reduce the likelihood of receiver desensitization?

Raise the receiver IF frequency

Increase the receiver front end gain

Switch from fast AGC to slow AGC

E4E06: What is a major cause of atmospheric static?

Solar radio frequency emissions

Geomagnetic storms

Meteor showers

E5A07: What is the magnitude of the current at the input of a parallel RLC circuit at resonance?

Maximum

R/L

L/R

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

E5D13: How much power is consumed in a circuit consisting of a 100 ohm resistor in series with a 100 ohm inductive reactance drawing 1 ampere?

70.7 Watts

141.4 Watts

200 Watts

E6A04: What is the name given to an impurity atom that adds holes to a semiconductor crystal structure?

Insulator impurity

N-type impurity

Donor impurity

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

Tunnel diode

Silicon-controlled rectifier

Zener diode

E6C03: Which of the following describes tri-state logic?

Logic devices that utilize ternary math

Low power logic devices designed to operate at 3 volts

Proprietary logic devices manufactured by Tri-State Devices

E6D14: Which is NOT true of a charge-coupled device (CCD)?

It uses a combination of analog and digital circuitry

It can be used to make an audio delay line

It samples and stores analog signals

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

E6F12: What absorbs the energy from light falling on a photovoltaic cell?

Protons

Photons

Holes

E7A14: What is a JK flip-flop?

A flip-flop utilizing low power, low temperature Joule-Kelvin devices

A flip-flop similar to a D flip-flop except that it triggers on the negative clock edge

A flip-flop originally developed in Japan and Korea which has very low power consumption

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

High power gain

High filament voltage

Low bandwidth

E7C06: What are the distinguishing features of an elliptical filter?

Gradual passband rolloff with minimal stop band ripple

Extremely flat response over its pass band with gradually rounded stop band corners

Gradual passband rolloff with extreme stop band ripple

E7D02: What is one characteristic of a switching electronic voltage regulator?

The resistance of a control element is varied in direct proportion to the line voltage or load current

It is generally less efficient than a linear regulator

It gives a ramp voltage at its output

E7E08: What are the principal frequencies that appear at the output of a mixer circuit?

Two and four times the original frequency

The sum, difference and square root of the input frequencies

1.414 and 0.707 times the input frequency

E7F07: What determines the accuracy of a frequency counter?

The speed of the logic devices used

Accuracy of the AC input frequency to the power supply

Proper balancing of the mixer diodes

E7G05: How can unwanted ringing and audio instability be prevented in a multi-section op-amp RC audio filter circuit?

Restrict gain, but increase Q

Restrict Q, but increase gain

Increase both gain and Q

E7H08: What is a Gunn diode oscillator?

An oscillator based on the argon gas diode

A highly stable reference oscillator based on the tee-notch principle

A highly stable reference oscillator based on the hot-carrier effect

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

Human speech

Video signals

Data

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

E8C06: What is the necessary bandwidth of a 170-hertz shift, 300-baud ASCII transmission?

0.1 Hz

0.3 kHz

1.0 kHz

E8D10: What type of meter should be used to monitor the output signal of a voice-modulated single-sideband transmitter to ensure you do not exceed the maximum allowable power?

An SWR meter reading in the forward direction

A modulation meter

An average reading wattmeter

E9A09: What is meant by antenna bandwidth?

Antenna length divided by the number of elements

The angle between the half-power radiation points

The angle formed between two imaginary lines drawn through the element ends

E9B03: In the antenna radiation pattern shown in Figure E9-1, what is the front-to-side ratio?

12 dB

18 dB

24 dB

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

Azimuth

Radiation resistance

Polarization

E9D08: What happens to the bandwidth of an antenna as it is shortened through the use of loading coils?

It is increased

No change occurs

It becomes flat

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 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

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?

10 meters

24 meters

50 meters

E9G06: On the Smith chart shown in Figure E9-3, what is the name for the large outer circle on which the reactance arcs terminate?

Prime axis

Impedance axis

Polar axis

E9H08: What is the function of a sense antenna?

It increases the sensitivity of a DF antenna array

It allows DF antennas to receive signals at different vertical angles

It provides diversity reception that cancels multipath signals