smecenasHW1 - Schayne Mecenas ECT263 Chp 3#3 4 5 6 24 30 33...

Info icon This preview shows page 1. Sign up to view the full content.

Schayne Mecenas ECT263 Chp 3 #3, 4, 5, 6, 24, 30, 33, 48 3. The closer the modulation index is to 1 the more power is sent to the sidebands, in turn this makes the AM transmitter more efficient. 4. When an AM modulator is over modulated the signal goes beyond zero and causes a reversal of the carrier phase. Since most AM modulators don’t go beyond zero, the portions of the signal that go beyond zero disappear, in its place is distortion. Over modulation is undesirable due to the distortion it creates and the additional
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: bandwidth it uses, additionally over modulation of an AM transmitter is illegal. 5. Amplitude modulation sends out two signals, the frequencies of said signals are the sum or difference of the information and carrier frequencies. 6. A narrow bandwidth allows for more information to be transmitted. 24. V(t) = [15+4 sin(44x10^3t)]sin(46.5x10^6t)V (a) (b) (c) m = em/ec = 4/15 m= 0.27 (d) (e) 30. 30kHz 33. (a) = 0.7 (b) = 6kHz (c) = 20v...
View Full Document

  • Summer '15
  • Carrier wave, 15 m, Schayne Mecenas

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern