31. To eliminate ghosts in the picture
32. Circular polarization
33. If in a broadcasting studio, a 1000 kHz carrier is modulated by an audio signal of frequency range 100-5000 kHz, the width of channel is __________ kHz.
34. In Modulation, “carrier” is
35. For a plate-modulated class C amplifier the plate supply voltage is E. The maximum plate cathode voltage could be almost high as
36. A cordless telephone using separate frequencies for transmission in base and portable units is known as
37. In TV systems, equalising pulses are sent during
38. For a given carrier wave, maximum undistorted power is transmitted when value of modulation is
39. The modulation index of an FM is changed from 0 to 1. How does the transmitted power change?
40. The maximum power output of a standard A earth station over the total band allocated to satellite communication is about
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