E0A05: What is one of the potential hazards of using microwaves in the amateur radio bands?

Microwaves are ionizing radiation

Microwaves often travel long distances by ionospheric reflection

The extremely high frequency energy can damage the joints of antenna structures

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

E1B11: What is the permitted mean power of any spurious emission relative to the mean power of the fundamental emission from a station transmitter or external RF amplifier installed after January 1, 2003, and transmitting on a frequency below 30 MHZ?

At least 53 dB below

At least 63 dB below

At least 73 dB below

E1C10: What types of amateur stations may automatically retransmit the radio signals of other amateur stations?

Only beacon, repeater or space stations

Only earth stations, repeater stations or model craft

Only auxiliary, beacon or space stations

E1D07: Which amateur service HF bands have frequencies authorized to space stations?

Only 40m, 20m, 17m, 15m and 10m bands

40m, 30m, 20m, 15m, 12m and 10m bands

All HF bands

E1E10: What must the administering VEs do after the administration of a successful examination for an amateur operator license?

They must collect and send the documents to the NCVEC for grading

They must collect and submit the documents to the coordinating VEC for grading

They must collect and send the documents to the FCC according to instructions

E1F07: When may an amateur station send a message to a business?

When the total money involved does not exceed $25

When the control operator is employed by the FCC or another government agency

When transmitting international third-party communications

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

HEO

Geomagnetic

LEO

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

E2C03: From which of the following bands is amateur radio contesting generally excluded?

6 meters

2 meters

33 cm

E2D10: How can an APRS station be used to help support a public service communications activity?

An APRS station with an emergency medical technician can automatically transmit medical data to the nearest hospital

APRS stations with General Personnel Scanners can automatically relay the participant numbers and time as they pass the check points

All of these choices are correct

E2E10: Which of these digital communications modes has the narrowest bandwidth?

MFSK16

170-Hz shift, 45 baud RTTY

300-baud packet

E3A08: When a meteor strikes the Earth's atmosphere, a cylindrical region of free electrons is formed at what layer of the ionosphere?

The F1 layer

The F2 layer

The D layer

E3B08: What type of HF propagation is probably occurring if radio signals travel along the terminator between daylight and darkness?

Transequatorial

Sporadic-E

Long-path

E3C02: What is the cause of Aurora activity?

The interaction between the solar wind and the Van Allen belt

A low sunspot level combined with tropospheric ducting

Meteor showers concentrated in the northern latitudes

E4A03: Which of the following parameters would a spectrum analyzer display on the vertical axis?

Duration

SWR

Q

E4B01: Which of the following factors most affects the accuracy of a frequency counter?

Input attenuator accuracy

Decade divider accuracy

Temperature coefficient of the logic

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

E4D10: What does a third-order intercept level of 40 dBm mean with respect to receiver performance?

Signals less than 40 dBm will not generate audible third-order intermodulation products

The receiver can tolerate signals up to 40 dB above the noise floor without producing third-order intermodulation products

A pair of 1 mW input signals will produce a third-order intermodulation product which is 40 dB stronger than the input signal

E4E14: What is one type of electrical interference that might be caused by the operation of a nearby personal computer?

A loud AC hum in the audio output of your station receiver

A clicking noise at intervals of a few seconds

A whining type noise that continually pulses off and on

E5A06: What is the magnitude of the circulating current within the components of a parallel LC circuit at resonance?

It is at a minimum

It equals 1 divided by the quantity 2 times Pi, multiplied by the square root of inductance L multiplied by capacitance C

It equals 2 multiplied by Pi, multiplied by frequency "F", multiplied by inductance "L"

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

E5C16: In polar coordinates, what is the impedance of a circuit that has an admittance of 7.09 millisiemens at 45 degrees?

5.03 E-06 ohms at an angle of 45 degrees

19,900 ohms at an angle of -45 degrees

141 ohms at an angle of 45 degrees

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

E6A12: Why do many MOSFET devices have internally connected Zener diodes on the gates?

To provide a voltage reference for the correct amount of reverse-bias gate voltage

To protect the substrate from excessive voltages

To keep the gate voltage within specifications and prevent the device from overheating

E6B08: Which of the following describes a type of semiconductor diode?

Electrolytic rectifier

CMOS-field effect

Thermionic emission diode

E6C07: In Figure E6-5, what is the schematic symbol for an AND gate?

2

3

4

E6D06: What core material property determines the inductance of a toroidal inductor?

Thermal impedance

Resistance

Reactivity

E6E08: How is power-supply voltage normally furnished to the most common type of monolithic microwave integrated circuit (MMIC)?

MMICs require no operating bias

Through a capacitor and RF choke connected to the amplifier input lead

Directly to the bias-voltage (VCC IN) lead

E6F03: What is the most common configuration of an optoisolator or optocoupler?

A lens and a photomultiplier

A frequency modulated helium-neon laser

An amplitude modulated helium-neon laser

E7A11: What is the name for logic which represents a logic "1" as a high voltage?

Reverse Logic

Assertive Logic

Negative logic

E7B03: Which of the following forms the output of a class D amplifier circuit?

A high-pass filter to compensate for low gain at low frequencies

A matched load resistor to prevent damage by switching transients

A temperature-compensated load resistor to improve linearity

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

E7D15: What is the purpose of a "step-start" circuit in a high-voltage power supply?

To provide a dual-voltage output for reduced power applications

To compensate for variations of the incoming line voltage

To allow for remote control of the power supply

E7E03: How does an analog phase modulator function?

By varying the tuning of a microphone preamplifier to produce PM signals

By varying the tuning of an amplifier tank circuit to produce AM signals

By varying the tuning of a microphone preamplifier to produce AM signals

E7F08: Which of the following is performed by a frequency counter?

Determining the frequency deviation with an FM discriminator

Mixing the incoming signal with a WWV reference

Converting the phase of the measured signal to a voltage which is proportional to the frequency

E7G08: How does the gain of an ideal operational amplifier vary with frequency?

It increases linearly with increasing frequency

It decreases linearly with increasing frequency

It decreases logarithmically with increasing frequency

E7H18: What are the major spectral impurity components of phase-locked loop synthesizers?

Digital conversion noise

Spurious signals at discrete frequencies

Nyquist limit noise

E8A01: What type of wave is made up of a sine wave plus all of its odd harmonics?

A sine wave

A cosine wave

A tangent wave

E8B11: Which of the following describes frequency division multiplexing?

The transmitted signal jumps from band to band at a predetermined rate

The transmitted signal is divided into packets of information

Two or more information streams are merged into a digital combiner, which then pulse position modulates the transmitter

E8C08: What term describes a wide-bandwidth communications system in which the transmitted carrier frequency varies according to some predetermined sequence?

Amplitude compandored single sideband

AMTOR

Time-domain frequency modulation

E8D07: What is an electromagnetic wave?

Alternating currents in the core of an electromagnet

A wave consisting of two electric fields at right angles to each other

A wave consisting of two magnetic fields at right angles to each other

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

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

E9D02: How can linearly polarized Yagi antennas be used to produce circular polarization?

Stack two Yagis, fed 90 degrees out of phase, to form an array with the respective elements in parallel planes

Stack two Yagis, fed in phase, to form an array with the respective elements in parallel planes

Arrange two Yagis collinear to each other, with the driven elements fed 180 degrees out of phase

E9E10: Which of these choices is an effective way to match an antenna with a 100-ohm feed point impedance to a 50-ohm coaxial cable feed line?

Connect a 1/4-wavelength open stub of 300-ohm twin-lead in parallel with the coaxial feed line where it connects to the antenna

Insert a 1/2 wavelength piece of 300-ohm twin-lead in series between the antenna terminals and the 50-ohm feed cable

Connect 1/2 wavelength shorted stub of 75-ohm cable in parallel with the 50-ohm cable where it attaches to the antenna

E9F04: What is the typical velocity factor for a coaxial cable with solid polyethylene dielectric?

2.70

0.30

0.10

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

E9H11: What characteristic of a cardioid-pattern antenna is useful for direction finding?

A very sharp peak

Broad band response

High-radiation angle