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Hi guys! Plz help me to answer the following questions.
1. What are the types of transmission line energy losses?
2. Why are the VLF are used some types of services?
3. What frequencies are used for reliable beyond the horizon
terrestrial communication without repeaters?
4. To permit selection of 1 out 16 equi-probable, what is
the number of bitis required?
5. What is the most common modulation used for telegraphy?
6. What is the multiplexing is used to increase the capacity
of the optic fiber?
Thanks
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