Practice Quiz in Wire and Wireless Communications System Part 39

Quiz in Wire and Wireless Communications System

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This is the Online Practice Quiz in Wire and Wireless Communications System Part 39 as one of the Communications Engineering topic. In Preparation for the ECE Board Exam make sure to expose yourself and familiarize in each and every questions compiled here taken from various sources including but not limited to past Board Examination Questions in Electronic System and Technologies, Communications Books, Journals and other Communications References.

Continue Part XXXIX of the Online Practice Quiz

Quiz in Wire and Wireless Communications System

Question 381. It serves as central control for all users within that cell.

A. base stations

B. antennas

C. transceivers

D. mobile subscriber units

Question 382. By definition, speech power is equal to v.u. reading minus ___________.

A. 1.8 dB

B. 4 dB

C. 1.4 dB

D. 3 dB

Question 383. Microcells have base stations transmit power between ____.

A. 0.4 W to 0.7 W

B. 1 W to 6 W

C. 0.5 W to 8 W

D. 0.1 W to 1 W

Question 384. What is the frequency deviation of AMPS?

A. 12 kHz

B. 6 kHz

C. 3 kHz

D. 18 kHz

Question 385. The transmission speed of group 4 fax is

A. 4800 baud

B. 9600 baud

C. 56 kbps

D. 192 kbps

Question 386. The number of dedicated lines used to interconnect 100 parties.

A. 99 lines

B. 1250 lines

C. 4950 lines

D. 3450 lines

Question 387. It is simply the frequency response of a transmission medium referenced to a 1004 -Hz test tone.

A. attenuation distortion

B. differential gain

C. 1004-Hz deviation

D. Any of these

Question 388. It is characterized by high-amplitude peaks of short duration having an approximately flat frequency response.

A. crosstalk

B. interference

C. impulse noise

D. drop out

Question 389. The difference between the absolute delays of all frequencies.

A. relative phase delay

B. phase delay distortion

C. absolute phase delay

D. phase distortion

Question 390. An information sent by the base station in a cellular radio system set the power level of the mobile transmitter.

A. cellular digital packet data

B. digital color code

C. control mobile attenuation code

D. electronic serial code

List of Practice Quizzes

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