-- card: 6478 from stack: in
-- bmap block id: 0
-- flags: 4000
-- background id: 7720
-- name: #265
----- HyperTalk script -----
on openCard
  global group,rightone
  put 27 into group
  put "D" into rightone
  pass openCard
end openCard



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Question #27

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4BF-3.2 What functions are performed by a "phase-locked loop"?

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Wideband AF and RF power amplification

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Comparison of two digital input signals, digital pulse counter

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Photovoltaic conversion, optical coupling

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Frequency synthesis, FM demodulation

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Correct answer is D