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card_116761.txt
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1994-05-12
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1KB
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42 lines
-- card: 116761 from stack: in
-- bmap block id: 0
-- flags: 4000
-- background id: 7720
-- name: #385
----- HyperTalk script -----
on openCard
global group,rightone
put 36 into group
put "A" into rightone
pass openCard
end openCard
-- part contents for background part 20
----- text -----
Question #36
-- part contents for background part 1
----- text -----
4BH-4.2 What is the term used to describe a "spread spectrum communications system" where the center frequency of a conventional carrier is altered many times per second in accordance with a pseudo-random list of channels?
-- part contents for background part 11
----- text -----
Frequency hopping
-- part contents for background part 27
----- text -----
Direct sequence
-- part contents for background part 28
----- text -----
Time-domain frequency modulation
-- part contents for background part 29
----- text -----
Frequency compandored spread spectrum
-- part contents for background part 43
----- text -----
Correct answer is A