E0A06: Why are there separate electric (E) and magnetic (H) field MPE limits?

The body reacts to electromagnetic radiation from both the E and H fields

Ground reflections and scattering make the field impedance vary with location

E field and H field radiation intensity peaks can occur at different locations

E1A06: Which of the following describes the rules for operation on the 60 meter band?

Working DX is not permitted

Operation is restricted to LSB

All of these choices are correct

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

E1C05: When may an automatically controlled station originate third party communications?

Only when transmitting an RTTY or data emissions

When specifically agreed upon by the sending and receiving stations

When approved by the National Telecommunication and Information Administration

E1D02: What is the amateur satellite service?

A radio navigation service using satellites for the purpose of self training, intercommunication and technical studies carried out by amateurs

A spacecraft launching service for amateur-built satellites

A radio communications service using stations on Earth satellites for public service broadcast

E1E05: What is the minimum passing score on amateur operator license examinations?

Minimum passing score of 70%

Minimum passing score of 80%

Minimum passing score of 77%

E1F02: Which of the following operating arrangements allows an FCC-licensed US citizen to operate in many European countries, and alien amateurs from many European countries to operate in the US?

IARP agreement

ITU reciprocal license

All of these choices are correct

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

HEO

Geomagnetic

LEO

E2B11: What is the function of the Vertical Interval Signaling (VIS) code transmitted as part of an SSTV transmission?

To lock the color burst oscillator in color SSTV images

To provide vertical synchronization

To identify the call sign of the station transmitting

E2C04: On which of the following frequencies is an amateur radio contest contact generally discouraged?

3.525 MHz

14.020 MHz

28.330 MHz

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

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

E3A03: When scheduling EME contacts, which of these conditions will generally result in the least path loss?

When the Moon is full

When the Moon is at apogee

When the MUF is above 30 MHz

E3B05: Which amateur bands typically support long-path propagation?

160 to 40 meters

30 to 10 meters

6 meters to 2 meters

E3C12: How does the maximum distance of ground-wave propagation change when the signal frequency is increased?

It stays the same

It increases

It peaks at roughly 14 MHz

E4A04: Which of the following test instruments is used to display spurious signals from a radio transmitter?

A wattmeter

A logic analyzer

A time-domain reflectometer

E4B03: If a frequency counter with a specified accuracy of +/- 1.0 ppm reads 146,520,000 Hz, what is the most the actual frequency being measured could differ from the reading?

165.2 Hz

14.652 kHz

1.4652 MHz

E4C05: What does a value of -174 dBm/Hz represent with regard to the noise floor of a receiver?

The minimum detectable signal as a function of receive frequency

The noise figure of a 1 Hz bandwidth receiver

The galactic noise contribution to minimum detectable signal

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

Amplifier desensitization

Neutralization

Adjacent channel interference

E4E12: What is one disadvantage of using some types of automatic DSP notch-filters when attempting to copy CW signals?

Any nearby signal passing through the DSP system will overwhelm the desired signal

Received CW signals will appear to be modulated at the DSP clock frequency

Ringing in the DSP filter will completely remove the spaces between the CW characters

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

E5B02: What is the term for the time it takes for a charged capacitor in an RC circuit to discharge to 36.8% of its initial voltage?

One discharge period

An exponential discharge rate of one

A discharge factor of one

E5C04: In polar coordinates, what is the impedance of a network consisting of a 400-ohm-reactance capacitor in series with a 300-ohm resistor?

240 ohms at an angle of 36.9 degrees

240 ohms at an angle of -36.9 degrees

500 ohms at an angle of 53.1 degrees

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

E6A11: In Figure E6-2, what is the schematic symbol for a P-channel junction FET?

2

3

6

E6B07: What is the failure mechanism when a junction diode fails due to excessive current?

Excessive inverse voltage

Insufficient forward voltage

Charge carrier depletion

E6C01: What is the recommended power supply voltage for TTL series integrated circuits?

12 volts

1.5 volts

13.6 volts

E6D11: How many turns will be required to produce a 1-mH inductor using a ferrite toroidal core that has an inductance index (A L) value of 523 millihenrys/1000 turns?

2 turns

4 turns

229 turns

E6E03: What is one aspect of the piezoelectric effect?

Mechanical deformation of a crystal by the application of a magnetic field

The generation of electrical energy by the application of light

Reversed conduction states when a P-N junction is exposed to light

E6F09: What is the efficiency of a photovoltaic cell?

The output RF power divided by the input dc power

The effective payback period

The open-circuit voltage divided by the short-circuit current under full illumination

E7A12: What is the name for logic which represents a logic "0" as a high voltage?

Reverse Logic

Assertive Logic

Positive Logic

E7B06: Which of the following amplifier types reduces or eliminates even-order harmonics?

Push-push

Class C

Class AB

E7C03: What advantage does a Pi-L-network have over a Pi-network for impedance matching between the final amplifier of a vacuum-tube transmitter and an antenna?

Higher efficiency

Lower losses

Greater transformation range

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

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

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

E7G06: Which of the following is the most appropriate use of an op-amp active filter?

As a high-pass filter used to block RFI at the input to receivers

As a low-pass filter used between a transmitter and a transmission line

For smoothing power-supply output

E7H16: Why is the short-term stability of the reference oscillator important in the design of a phase locked loop (PLL) frequency synthesizer?

Any amplitude variations in the reference oscillator signal will prevent the loop from locking to the desired signal

Any phase variations in the reference oscillator signal will produce harmonic distortion in the modulating signal

Any amplitude variations in the reference oscillator signal will prevent the loop from changing frequency

E8A10: Which of the following is a distinguishing characteristic of a pulse waveform?

Regular sinusoidal oscillations

A series of tones that vary between two frequencies

A signal that contains three or more discrete tones

E8B10: Which of these methods can be used to combine several separate analog information streams into a single analog radio frequency signal?

Frequency shift keying

A diversity combiner

Pulse compression

E8C13: What is one advantage of using JT-65 coding?

Uses only a 65 Hz bandwidth

Easily copied by ear if necessary

Permits fast-scan TV transmissions over narrow bandwidth

E8D11: What is the average power dissipated by a 50-ohm resistive load during one complete RF cycle having a peak voltage of 35 volts?

9.9 watts

24.5 watts

16 watts

E9A08: What is meant by antenna gain?

The ratio of the signal in the forward direction to that in the opposite direction

The ratio of the amount of power radiated by an antenna compared to the transmitter output power

The final amplifier gain minus the transmission-line losses, including any phasing lines present

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

12 dB

18 dB

24 dB

E9C05: What are the disadvantages of a terminated rhombic antenna for the HF bands?

The antenna has a very narrow operating bandwidth

The antenna produces a circularly polarized signal

The antenna is more sensitive to man-made static than any other type

E9D01: How does the gain of an ideal parabolic dish antenna change when the operating frequency is doubled?

Gain does not change

Gain is multiplied by 0.707

Gain increases by 3 dB

E9E07: What term best describes the interactions at the load end of a mismatched transmission line?

Characteristic impedance

Velocity factor

Dielectric constant

E9F08: What is the term for the ratio of the actual speed at which a signal travels through a transmission line to the speed of light in a vacuum?

Characteristic impedance

Surge impedance

Standing wave ratio

E9G08: What is the process of normalization with regard to a Smith chart?

Reassigning resistance values with regard to the reactance axis

Reassigning reactance values with regard to the resistance axis

Reassigning prime center with regard to the reactance axis

E9H05: What is the main drawback of a wire-loop antenna for direction finding?

It is non-rotatable

It receives equally well in all directions

It is practical for use only on VHF bands