정의: Radio is the technology of communicating using radio waves. Radio waves are electromagnetic waves of frequency between 3 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmitter connected to an antenna which radiates the waves. They can be received by other antennas connected to a radio receiver; this is the fundamental principle of radio communication. In addition to communication, radio is used for radar, radio navigation, remote control, remote sensing, and other applications.
| 핵심 연구 분야 | Cryptography |
|---|---|
| 주요 연도 | N/A년 |
| 주요 연관 키워드 | encryption |
| 좋아요 수 | 0 |