Continuously from the 1890s until now.
it is used for the communication
long distance communication
Ship communication.
Ship communication.
Listen In (intercept radio communication)
Shortwave radio is used for broadcasting of voice and music to shortwave listeners, and long-distance communication to ships and aircraft, or to remote areas out of reach of wired communication or other radio services. Additionally, it is used for two-way international communication by amateur radio enthusiasts for hobby, educational and emergency purposes.
radio waves
ships
radio waves are used in tv communication, weather broadcasting
Radio waves.
They are; mobile phones are no more dangerous than a radio station.
Wireless communication is usually a form of radio communication. Radio communication uses a part of the electro-magnetic spectrum of radiation. Microwave ovens also use electro-magnetic radiation. If you have a radio that's operating close to the microwave range, or maybe an microwave oven that has a wide spectrum, then the oven can interfere with the radio.