Low SNR is preferred in a communications link, since it means that the noise will also be low.
True
False
10 points
QUESTION 5
Determine the decibel values of thermal noise power (N) and thermal noise power density (No)given the following: T=292 degrees Kelvin, B = 40MHz. (note: brackets “[ ]” represent decibel values)
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a. [N] = +128 dBW, [No]= +204dBW |
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b. [N] = -128 dBW, [No] = -204 dBW |
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c. [N] = -128 dBm, [No]= -204 dBm |
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d. none of the above are correct |
1. False
Because low snr means high noise
2 b. N=-128dBw, No=-204dBw
Using the formula N=10log(kBT/0.001)
Using this we get N =-97.92dBm=-128dBw
Low SNR is preferred in a communications link, since it means that the noise will also...
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