Page 1 :
Dated 14 Jan, Communication System, 1.Write a Short note on Communication System, , 2.What is Ground Wave Propagation?On what, factor Does the maximum range of Propagation, , in this mode depend?, 3.What is the need of modulating a signal?, , 4.What is sky wave propagation? Why is this, mode of Propagation is restricted to frequencies, , only upto few MHz?, , 5.What does the term LOS communication mean?, Name the type of wave that are used for this, communication.Give example of system that, , uses space wave propagation., , 6.What is space communication? Explain with, diagram the concept and method of Propagation, , through this mode.