la) To enable the broadcast of the ongoing impeachment trial of America president, a transmission engineer had to mix the televise TV Signal with a carrier signal of f(t) = Cosωot. As a communication expert, give and explain four technical reasons why this process should be carried out

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  1. la) To enable the broadcast of the ongoing impeachment trial of America president, a

transmission engineer had to mix the televise TV Signal with a carrier signal of f(t) =

Cosωot. As a communication expert, give and explain four technical reasons why this

process should be carried out

 

1b) If the acceptable hearing level of worshiper in a church service is pegged

at 40 x 10-2wm-1. a loud speaker is to be install at 500cm from the pulpit, determine the

minimum power level of the loud speaker that must be install

 

1c) list and briefly explain the three types of modulation scheme and show their

respective waveform

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