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MMLU-Pro / 11485 / A frequency modulation (FM) receiver with input signal- to- noise ratio (S_i…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

A frequency modulation (FM) receiver with input signal- to- noise ratio (S_i /nf_m) = 40 dB is used to pick- up sig-nals from different FM stations. If the transmitted FM signal is represented by km(t) = \beta \bullet \omega \bulletcos(\omega_mt), calcu-late output signal- to- noise ratio for different values of \beta such as 5, 10 and 105.

category

engineering

options

  1. β = 5, 58.7 dB; β = 10, 64.7 dB; β = 105, 85.185 dB
  2. β = 5, 55.7 dB; β = 10, 61.7 dB; β = 105, 82.185 dB
  3. β = 5, 50 dB; β = 10, 60 dB; β = 105, 80 dB
  4. β = 5, 52.5 dB; β = 10, 58.5 dB; β = 105, 78.685 dB
  5. β = 5, 60.1 dB; β = 10, 66.1 dB; β = 105, 87.285 dB
  6. β = 5, 47.2 dB; β = 10, 53.2 dB; β = 105, 73.385 dB
  7. β = 5, 45.7 dB; β = 10, 51.7 dB; β = 105, 72.185 dB
  8. β = 5, 65.7 dB; β = 10, 71.7 dB; β = 105, 92.185 dB
  9. β = 5, 43.6 dB; β = 10, 49.6 dB; β = 105, 69.785 dB
  10. β = 5, 42 dB; β = 10, 48 dB; β = 105, 68.185 dB

src

stemez-ElectronicCommunications

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Source and history

upstream_id / Original problem ID
11485
task_id
3a1c736b-9668-5004-80ce-7291a9eb0246
task_key
default--test--11485
task_revision_id
1
config / split
default / test

Official source

initial import