rádiófrekvenciaspektrum

rádiófrekvencia refers to a range of electromagnetic wave frequencies used for radio communication. This spectrum spans from approximately 3 kilohertz to 300 gigahertz. Within this broad range, different frequency bands are allocated for specific purposes, such as broadcasting, mobile telephony, satellite communication, and navigation systems. The properties of radio waves, including their ability to propagate over long distances and penetrate certain materials, make them essential for modern wireless technologies.

The behavior of radio waves is highly dependent on their frequency. Lower frequencies, such as those used in AM radio, can travel very long distances and diffract around obstacles. Higher frequencies, like those used in Wi-Fi and mobile data, offer greater bandwidth and are more directional, but have a shorter range and can be blocked by physical objects. Radio waves are generated by oscillating electric currents in antennas and are detected by similar antennas at the receiving end. The International Telecommunication Union (ITU) plays a key role in regulating the global radio-frequency spectrum to prevent interference between different services. Applications of radio frequency are ubiquitous, forming the backbone of much of our modern communication infrastructure.