Amplification of RF signals is itself a very difficult task........explain please

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sumansamui

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why this is so.please explain....
 

RF signal itself is very low in -100-dbm range sometime or even low and has noise ..... So no normal or common Transistor amplifier can take such a low input. You need special one to take such low inputs and amplify... as said before its expensive not so difficult!!
 

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