Taajuusvyöhykkeiksi

Taajuusvyöhykkeiksi, also known as frequency bands, refers to contiguous ranges of frequencies within the electromagnetic spectrum. These bands are designated for specific purposes, such as radio communication, television broadcasting, mobile telephony, satellite services, and scientific research. The allocation and management of these frequency bands are crucial for ensuring efficient and interference-free use of the radio spectrum. International bodies like the International Telecommunication Union (ITU) play a significant role in harmonizing the global allocation of these bands.

Different frequency bands have distinct propagation characteristics and suitable applications. Lower frequency bands, for instance, can travel longer distances and penetrate obstacles more effectively, making them suitable for long-range communication and broadcasting. Higher frequency bands, on the other hand, have a wider bandwidth and can carry more data, but their range is more limited and they are more susceptible to atmospheric conditions. Examples of commonly recognized frequency bands include Very Low Frequency (VLF), Low Frequency (LF), Medium Frequency (MF), High Frequency (HF), Very High Frequency (VHF), Ultra High Frequency (UHF), Super High Frequency (SHF), and Extremely High Frequency (EHF). Each of these broad categories is further subdivided into more specific bands with precise allocations for various services. The precise definition and usage of these bands are subject to national and international regulations to prevent harmful interference between different radio services.