Communication Systems Part 3
Communication Systems Preparation Part 3 It is desired that transmission line and load should match for a range of frequencies. The best method is To use a double stub. When matching over a range of frequencies is desired, double stub is necessary. Which of the following has the highest input impedance? CC connection has very high input impedance and low output impedance In a fascimile reproduction time to scan one line is 2 ms. If it has 4% blanking, the visible trace time is 1.92 ms. (2 ms) (1 - 0.04) = 1.92 ms Consider the following statements The amplitude of an FM wave is constant FM is more immune to noise than AM FM broadcasts operate in upper VHF and UHF frequency ranges FM transmitting and receiving equipments are simpler as compared to AM transmitting and receiving equipments Which of the above are correct? B. FM equipments are complex as compared to AM equipments. Signal to noise