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1. In __________ communication , the media of transmission is a pair of conductors called transmission line
2. In _________ communication transmission media is open space or free space.
3. _________ is the equipment which converts physical message, such as sound, words, pictures etc., into corresponding electrical signal.
4. __________ is equipment which converts electrical signal back to the physical message.
5. _________ is defined as the process by which some characteristics (i.e. amplitude, frequency, and phase) of a carrier are varied in accordance with a modulating wave
6. _________is the reverse process of modulation, which is used to get back the original message signal.
7. Modulation is needed in a communication system to achieve the following basic needs
8. Which of the following are the types of amplitude modulation
9. __________ & ___________ are two methods to generate DSB-SC waves
10. Which of the following are the methods for generation of SSB Waves