# IT 300 EXAM .docx - 1 what is true about MMF and SMF fiber...

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1) what is true about MMF and SMF fiber optic cables. d)modal dispersion occurs when multiple light paths exit within the core of a MMF cable, thus causing signal 2) Given the following message and carrier waves, determine the FM signal equation: m(t) =1.5cos(2pi4.5E3t). c(t) = 3 cos(2pi6E9hz*t), Kvco = 5000hz/v) a.s(t) = 3cos(2pi6E9t+1.6sin(2pi4500t)) 3) 330 mW = ___dBW. b.-4.81 dBW 4) Given the following equation for an FM signal, select the correct information below: SFM(t) = 1cos(2pi100E3HZ*t)+6.25sin(2pi4E3HZ*t)],KVCO = 5000(Hz/v) b) FM index, B =6.25, message amplitude, Am =5v, message frequency, fm = 4KHZ. 5) Given the following message and carrier waves, determine the PM signal equation and frequency bandwidth: m(t) =5cos(2pi5.5E3t), c(t)=3cos(2pi10E9HZ*t),Kp=pi/8(radians/v) b) s(t) =3cos(2pi10E9t)+1.96cos(2pi5500t)),BW = 32.56 KHZ 6) What factor(s) should be considered to ensure the successful transmission of a communications signal? View full document
7) select the correct statement(s) regarding modulation. View full document
8) select the correct statement(s) regarding spread spectrum technologies. View full document
9) given the following message and carrier waves, determine the AM signal equation and (DSB- LC) bandwidth: m(t) =1.5cos(2pi5KHZ*t), c(t) =3cos(2.5pi110E3HZ*t) View full document  ## Want to read all 5 pages?

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