Question 1

Which of the following is likely to result in a wireless signal gain?

Accepted Answer

A)   cables
B)   amplifier
C)   connectors
D)   atmosphereE) None of the above
F) All of the above

Question 2

When a coaxial cable connects the antenna to the transmitter, what property of the cable must match that of the antenna?

Accepted Answer

A)   impedance
B)   thickness
C)   length
D)   inductanceE) None of the above
F) A) and B)

Question 3

Describe directional gain and how it can be accomplished with a passive antenna.

Accepted Answer

Certain shapes of passive antennas radia...

Question 4

What type of antenna is divided into a matrix of radiating elements and are used in modern radar systems?

Accepted Answer

A)   switched beam
B)   horn
C)   patch
D)   phased arrayE) A) and B)
F) C) and D)

Question 5

A monopole antenna is a type of two-dimensional antenna.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following is the elliptical region within which signals travel between two antennas in a point-to-point link?

Accepted Answer

A)   troposphere radius
B)   propagation limit
C)   Fresnel zone
D)   wave patternE) B) and C)
F) B) and D)

Question 7

Which type of directional antenna is used for outdoor applications up to 16 miles?

Accepted Answer

A)   cellular
B)   patch
C)   parabolic dish
D)   yagiE) A) and D)
F) A) and C)

Question 8

What does antenna polarization tell you about the antenna wave? How is it important for signal reception?

Accepted Answer

When a signal leaves an antenna, the sin...

Question 9

What type of antenna is a straight piece of wire with no reflecting ground element?

Accepted Answer

A)   monopole
B)   dipole
C)   horn
D)   dishE) B) and C)
F) All of the above

Question 10

Which type of antenna should usually be used at the central location in a point-to-multipoint wireless link?

Accepted Answer

A)   unidirectional
B)   omnidirectional
C)   directional
D)   semi-directionalE) B) and C)
F) All of the above

Question 11

_____________ is a relative measurement used to represent gain or loss in a signal.

Accepted Answer

The answer of _____________ is a relative measurement used to...

Question 12

List three of the four aspects of RF signal transmission you need to know.

Accepted Answer

The strength or the power with which the...

Question 13

What does an antenna pattern show about the RF wave?

Accepted Answer

The antenna pattern indicates ...

Question 14

The size of an antenna is directly proportional to the wavelength of the signal it is designed to transmit and receive.

Accepted Answer

A) True 
 B)False  False

Question 15

If a signal is represented as 15 mW + 10 db, what is the resulting signal strength in mW?

Accepted Answer

A)   30 mW
B)   25 mW
C)   75 mW
D)   150 mWE) C) and D)
F) B) and C)

Question 16

A cellular phone antenna that is 13 inches long would be considered which of the following?

Accepted Answer

A)   eighth-wave
B)   quarter-wave
C)   half-wave
D)   full-waveE) A) and B)
F) A) and C)

Question 17

A _________________ analyzer is a tool that displays the signal amplitude and frequency of a radio transmission.

Accepted Answer

spectrum

Question 18

What does antenna polarization determine about the performance of the antenna?

Accepted Answer

A)   radiation pattern
B)   horizontal or vertical orientation
C)   measurement of signals is positive or negative voltage
D)   direction of the signalE) A) and B)
F) C) and D)

Question 19

MATCHING
-can only radiate a signal with the same amount of energy that appears at the antenna connector

Accepted Answer

A)  antenna pattern
B)  dB isotropic
C)  dBm
D)  dipole
E)  free space lossF) ground-planeG) isotropic radiatorH) passive antennaI) patch antennaJ) smart antennaK) A) and H)
L) A) and G) H

Question 20

If an antenna is much longer than the wavelength, what is the typical result?

Accepted Answer

A)   inefficient delivery of RF energy
B)   signals that are an incorrect wavelength
C)   wrong signal frequency
D)   no signal is transmittedE) C) and D)
F) None of the above

Exam 4: How Antennas Work

Which of the following is likely to result in a wireless signal gain?

Correct AnswerverifiedShow Answer

When a coaxial cable connects the antenna to the transmitter, what property of the cable must match that of the antenna?

Correct AnswerverifiedShow Answer

Describe directional gain and how it can be accomplished with a passive antenna.

Correct AnswerverifiedCertain shapes of passive antennas radia...View AnswerShow Answer

What type of antenna is divided into a matrix of radiating elements and are used in modern radar systems?

Correct AnswerverifiedShow Answer

A monopole antenna is a type of two-dimensional antenna.

Correct AnswerverifiedShow Answer

Which of the following is the elliptical region within which signals travel between two antennas in a point-to-point link?

Correct AnswerverifiedShow Answer

Which type of directional antenna is used for outdoor applications up to 16 miles?

Correct AnswerverifiedShow Answer

What does antenna polarization tell you about the antenna wave? How is it important for signal reception?

Correct AnswerverifiedWhen a signal leaves an antenna, the sin...View AnswerShow Answer

What type of antenna is a straight piece of wire with no reflecting ground element?

Correct AnswerverifiedShow Answer

Which type of antenna should usually be used at the central location in a point-to-multipoint wireless link?

Correct AnswerverifiedShow Answer

_____________ is a relative measurement used to represent gain or loss in a signal.

Correct AnswerverifiedShow Answer

List three of the four aspects of RF signal transmission you need to know.

Correct AnswerverifiedThe strength or the power with which the...View AnswerShow Answer

What does an antenna pattern show about the RF wave?

Correct AnswerverifiedThe antenna pattern indicates ...View AnswerShow Answer

The size of an antenna is directly proportional to the wavelength of the signal it is designed to transmit and receive.

Correct AnswerverifiedFalse

If a signal is represented as 15 mW + 10 db, what is the resulting signal strength in mW?

Correct AnswerverifiedShow Answer

A cellular phone antenna that is 13 inches long would be considered which of the following?

Correct AnswerverifiedShow Answer

A _________________ analyzer is a tool that displays the signal amplitude and frequency of a radio transmission.

Correct Answerverifiedspectrum

What does antenna polarization determine about the performance of the antenna?

Correct AnswerverifiedShow Answer

MATCHING -can only radiate a signal with the same amount of energy that appears at the antenna connector

Correct AnswerverifiedH

If an antenna is much longer than the wavelength, what is the typical result?

Correct AnswerverifiedShow Answer

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Certain shapes of passive antennas radia...
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When a signal leaves an antenna, the sin...
View Answer

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The strength or the power with which the...
View Answer

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The antenna pattern indicates ...
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False

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spectrum

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H

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