BICSI
RCDD · Question #324
The signal at the input to a balanced twisted pair cable is 10 mW. The cable is 1000 feet long and has an attenuation of 1 dB per 100 feet. This cable is connected to the input of a receiver. The…
The correct answer is B. 30 dB. See the full explanation below for the reasoning.
Question
The signal at the input to a balanced twisted pair cable is 10 mW. The cable is 1000 feet long and has an attenuation of 1 dB per 100 feet. This cable is connected to the input of a receiver. The noise level at the input to the receiver is 1 microwatt. What is the signal-to- noise ratio (SNR) (dB) at the receiver input?
Options
- A10 dB
- B30 dB
- C40 dB
- D60 dB
- E100 dB
How the community answered
(17 responses)- A6% (1)
- B71% (12)
- C18% (3)
- D6% (1)
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