Guglielmo Marconi.
Wireless communication was first demonstrated in 1866, and the first radio transmission was sent in 1895 by Guglielmo Marconi.
Guglielmo marconi
wireless
It is the set area of radio frequencies on which wireless communication is formed upon.
Wireless in its earlier use meant communication without wires. Early radio. Electronics may or may not have anything to do with communication.
Gugeliemo Marconi
Marconi is credited with the invention of radio.
Concrete interferes with wireless communication by weakening the signal of the radio frequency. Concrete's ability to weaken or completely stop radio frequencies from travelling through it are what causes the interference.
normally, it is where a radio wave is interfering with the communication wave that you are sending out (I think).
Television and Radio?
Electromagnetic wave were discovered not invented.
Wireless telegraphy is an expression describing early radio telegraph communication, particularly between 1880 and 1920, before the term radio was used.