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Electronic Communication Technology

problem1. prepare a concise explanation of the principles of super-heterodyne receiver. It might help to use sample block diagram to express the process. Why is the production of intermediate frequency so significant?

problem2. Discuss the need for automatic gain control in the AM receiver and automatic frequency control in FM. How are such ‘control’ voltage produce and used?

problem3. prepare a concise summary of AM superhet receiver, in particular consider how demodulation stage works, and comment on the choice of component values used.

problem4. How does the ITU make sure compatibility between the Radio systems used in different countries?  Why is regulation so significant?

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