Wireless Communications & Network 2nd Ed. by William Stallings (soal & jawaban) part 2

16. Given the frequencies listed below, calculate the corresponding periods.
    a. 24Hz
    
    

    T=1/f=1/24=0,04166 s

    
    
    b. 8 MHz
    
    

    T=1/f=1/8=0,125 µs

    
    
    c. 140 KHz
    
    

    T=1/f=1/140=0,0071429 ms

17. Given the following periods, calculate the corresponding frequencies.
    a. 5 s 
    
    

    f=1/T=1/5=0,2 Hz

    
    b. 12 µs

    f=1/T=1/12=0,0833 MHz

    
    c. 220 ns
    
    

    f=1/T=1/220=0,004545 GHz

18. What is the phase shift for the following?

    a. A sine wave with the maximum amplitude at time zero

    1/0 x 3600=~

    
    

    
    

    b. A sine wave with maximum amplitude after 1/4 cycle

    1/4 x 3600=90

    
    

    
    

    c. A sine wave with zero amplitude after 3/4 cycle and increasing
    

    3/4 x 3600=270

    
    

    
    

    
    

    

    
    

    
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