Because they wanted to send signals to places where wires didn't go - like to ships at sea.
radar.
No
No. Broadband is just a signaling method. It has nothing to do with the security, or lack thereof, of wireless networking. Wireless has very limited security since it is open to the public.
Network+ Guide to Networks answer: C. Multipath signaling uses less energy and results in clearer reception than line-of-sight signaling. Which of the following is not true about multipath signaling? A. The more obstacles a wireless signal reflects or diffracts off, the better chance it has of reaching its destination. B. Given that they follow multiple paths to their destination, signals will arrive at the same destination at slightly different times. C. Multipath signaling uses less energy and results in clearer reception than line-of-sight signaling. D. The more obstacles between a wireless transmitter and receiver, the more signal fading will occur.
Yes a telegraph can be wireless. Thomas Edison invented the first wireless telegraph
The first wireless device invented was the wireless telegraph in 1935 by Guglielmo Marconi.
marcon
i did
Yes the wireless patch for audio guitars and such have been invented for over 30 years
Nikola Tesla
1325
Guglielmo marconi