E0A02: When evaluating RF exposure levels from your station at a neighbor's home, what must you do?

Make sure signals from your station are less than the controlled MPE limits

You need only evaluate exposure levels on your own property

Advise your neighbors of the results of your tests

E1A07: What is the only amateur band where transmission on specific channels rather than a range of frequencies is permitted?

12 meter band

17 meter band

30 meter band

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

.5

2.0

3.0

E1C04: When may an automatically controlled station retransmit third party communications?

Never

When specifically agreed upon by the sending and receiving stations

When approved by the National Telecommunication and Information Administration

E1D08: Which VHF amateur service bands have frequencies available for space stations?

6 meters and 2 meters

6 meters, 2 meters, and 1.25 meters

2 meters and 1.25 meters

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

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

E2A08: Why should effective radiated power to a satellite which uses a linear transponder be limited?

To prevent creating errors in the satellite telemetry

To prevent the satellite from emitting out of band signals

To avoid interfering with terrestrial QSOs

E2B01: How many times per second is a new frame transmitted in a fast-scan (NTSC) television system?

60

90

120

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

E2D05: Which of the following techniques is normally used by low Earth orbiting digital satellites to relay messages around the world?

Digipeating

Multi-satellite relaying

Node hopping

E2E09: Which of the following HF digital modes uses variable-length coding for bandwidth efficiency?

RTTY

PACTOR

MT63

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

E3B02: What is the approximate maximum range for signals using transequatorial propagation?

1000 miles

2500 miles

7500 miles

E3C06: By how much does the VHF/UHF radio-path horizon distance exceed the geometric horizon?

By approximately twice the distance

By approximately one-half the distance

By approximately four times the distance

E4A10: Which of the following tests establishes that a silicon NPN junction transistor is biased on?

Measure base-to-emitter resistance with an ohmmeter; it should be approximately

Measure base-to-emitter resistance with an ohmmeter; it should be approximately 0.6 to 0.7 ohms

Measure base-to-emitter voltage with a voltmeter; it should be approximately

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

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

E4D11: Why are third-order intermodulation products created within a receiver of particular interest compared to other products?

The third-order intercept is much higher than other orders

Third-order products are an indication of poor image rejection

Third-order intermodulation produces three products for every input signal within the band of interest

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

E5A12: What is the half-power bandwidth of a parallel resonant circuit that has a resonant frequency of 3.7 MHz and a Q of 118?

436.6 kHz

218.3 kHz

15.7 kHz

E5B06: How long does it take for an initial charge of 800 V DC to decrease to 294 V DC in a 450-microfarad capacitor when a 1-megohm resistor is connected across it?

4.50 seconds

9 seconds

900 seconds

E5C15: In polar coordinates, what is the impedance of a circuit of 100 -j100 ohms impedance?

100 ohms at an angle of 45 degrees

100 ohms at an angle of -45 degrees

141 ohms at an angle of 45 degrees

E5D05: Which of the following creates a magnetic field?

Potential differences between two points in space

A charged capacitor

A battery

E6A06: What is the beta of a bipolar junction transistor?

The frequency at which the current gain is reduced to 1

The breakdown voltage of the base to collector junction

The switching speed of the transistor

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

Tunnel diode

Silicon-controlled rectifier

Zener diode

E6C10: In Figure E6-5, what is the schematic symbol for a NOR gate?

1

2

3

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

E6E10: What is the equivalent circuit of a quartz crystal?

Motional capacitance, motional inductance, loss resistance, and a capacitor representing electrode and stray capacitance all in parallel

Motional capacitance, motional inductance, loss resistance, and a capacitor represent electrode and stray capacitance all in series

Motional inductance and loss resistance in series, paralleled with motional capacitance and a capacitor representing electrode and stray capacitance

E6F11: Which of the following is the approximate open-circuit voltage produced by a fully-illuminated silicon photovoltaic cell?

0.1 V

1.5 V

12 V

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

E7B19: What is a klystron?

A high speed multivibrator

An electron-coupled oscillator utilizing a pentode vacuum tube

An oscillator utilizing ceramic elements to achieve stability

E7C04: How does an impedance-matching circuit transform a complex impedance to a resistive impedance?

It introduces negative resistance to cancel the resistive part of impedance

It introduces transconductance to cancel the reactive part of impedance

Network resistances are substituted for load resistances and reactances are matched to the resistances

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

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

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

E7G13: What is meant by the term op-amp input-offset voltage?

The output voltage of the op-amp minus its input voltage

The differential input voltage needed to bring the open-loop output voltage to zero

The potential between the amplifier input terminals of the op-amp in an open-loop condition

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

E8A05: What would be the most accurate way of measuring the RMS voltage of a complex waveform?

By using a grid dip meter

By measuring the voltage with a D'Arsonval meter

By using an absorption wavemeter

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

E8C09: Which of these techniques causes a digital signal to appear as wide-band noise to a conventional receiver?

Independent sideband

Regenerative detection

Exponential addition

E8D01: Which of the following is the easiest voltage amplitude parameter to measure when viewing a pure sine wave signal on an analog oscilloscope?

RMS voltage

Average voltage

DC voltage

E9A15: What is meant by the radiation resistance of an antenna?

The combined losses of the antenna elements and feed line

The specific impedance of the antenna

The resistance in the atmosphere that an antenna must overcome to be able to radiate a signal

E9B08: How can the approximate beamwidth in a given plane of a directional antenna be determined?

Measure the ratio of the signal strengths of the radiated power lobes from the front and rear of the antenna

Draw two imaginary lines through the ends of the elements and measure the angle between the lines

Measure the ratio of the signal strengths of the radiated power lobes from the front and side of the antenna

E9C09: What is the front-to-back ratio of the radiation pattern shown in Figure E9-2?

15 dB

3 dB

24 dB

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

E9E02: What is the name of an antenna matching system that matches an unbalanced feed line to an antenna by feeding the driven element both at the center of the element and at a fraction of a wavelength to one side of center?

The delta match

The epsilon match

The stub match

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

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

E9H03: What is the effective isotropic radiated power of a repeater station with 200 watts transmitter power output, 2-dB feed line loss, 2.8-dB duplexer loss, 1.2-dB circulator loss and 7-dBi antenna gain?

159 watts

632 watts

63.2 watts