radio frequency spectrum & antennas

micro1 · Apr 29, 2016

hi all

I have a question in my mind:

how it was radio frequency spectrum Past and Present( is mean now )?

how it was antennas Past and Present(is mean now )?

bertus · Apr 30, 2016

Hello,

Have a look at some very old books that you can download here:
http://www.tubebooks.org/technical_books_online.htm

Then compare them with new books you might find in the library.

Bertus

micro1 · Apr 30, 2016

please Join me your ideas about radio frequency spectrum and antennas at old and now

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radio frequency spectrum & antennas

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radio frequency spectrum & antennas

micro1

bertus

micro1

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