Maurice Tutor

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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Computer Science Posted 22 Sep 2017 My Price 3.00

measure signal power

1. Sometimes the decibel is used to measure signal power in mill watts. In this case, it is referred to as dBm and is calculated as dBm = 10 loglO Pm" where Pm is the power in milliwatts. Calculate the power of a signal if its dBm =-30.

2. The loss in a cable is usually defined in decibels per kilometer (dB/km). If the signal at the beginning of a cable with -0.3 dBlkm has a power of 2 mW, what is the power of the signal at 5 km?

;3. The power of a signal is 10 mW and the power of the noise is 1 μW; what are the values of SNR and SNRdB?

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Maurice Tutor
(5)
Status NEW Posted 22 Sep 2017 11:09 PM My Price 3.00

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