«Утвержден» Научно-методический совет Джизпи за№ от 2021 г. Председатель совета


Look at the diagram and complete the text about telecommunication systems



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2. Look at the diagram and complete the text about telecommunication systems.

Telecommunication systems need means for the 1)________________________ of any information, which is translated into electromagnetic waves that connect the transmitter to the receiver. These means can be physical media, such as (2)______________________________, or radio (3)_______________________, which are transmitted by air. Different kind of cables can be used. The simplest communication cables consist of a single pair of 4)__________________________ twisted together. Other types are (5)_______________________________ cables and optical (6) _________________________________. Radio waves need (7) _________________________________ to be transmitted and sometimes (8) _______________________________________ are necessary for long-distance transmission.




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