Radio Spectrum
38 entries in the Radio Spectrum compendium.
800 MHz frequency bandFormer TV band reallocated for mobile broadband in Europe.Band IVHF band originally used for analog television broadcasting worldwide.Band IIIVHF band from 174 to 240 MHz for TV and radio.Band IVA UHF band used for television and mobile broadcast services.Band VA disputed UHF band used for TV and mobile services.Bandwidth allocationAssigning radio frequencies to applications using auctions, lotteries, or hearings.Digital dividend after digital television transitionSpectrum freed by the analog-to-digital television transition.E band (waveguide)Waveguide E band spans 60–90 GHz for high-density fixed wireless.Equivalent power flux densityA regulatory metric for NGSO-to-GSO interference in shared satellite spectrum.Extremely high frequencyMillimeter waves enable dense frequency reuse and 5G networks.Extremely low frequencyELF waves penetrate seawater and travel worldwide for submarine communication.Frequency allocationGovernment designation of electromagnetic spectrum into regulated frequency bands.High frequencyHF enables long-distance radio communication via ionospheric skywave propagation.Low frequencyLow frequency waves enable long-distance ground wave communication.Luxemburg–Gorky effectCross modulation of radio waves via ionospheric conductivity changes.Medium frequencyMedium frequency spans 300 kHz to 3 MHz, key for AM broadcasting.Military spectrum managementEssential for command, control, and interoperability in military operations.NATO Joint Civil/Military Frequency AgreementUniversal NATO treaty regulating military spectrum access from 14 kHz to 100 GHz.Open spectrumMovement for shared, unlicensed radio-frequency spectrum for all.Orbit spectrumA limited radio spectrum segment enabled by satellites in orbit.Personal RF safety monitorWorn device measuring RF exposure against safety guidelines.Radio frequencyOscillation rate enabling radio wave radiation from conductors.Radio Spectrum Policy ProgrammeEU programme to standardise radio spectrum allocation across member states.Radio spectrum pollutionStray radio waves causing unintended effects on communication and health.Shortwave radioShortwave radio enables long-distance communication via ionospheric reflection.Spectral densityDistribution of signal power over frequency components.Spectrum auctionGovernment auction of rights to transmit over specific radio spectrum bands.Spectrum commons theoryTheory advocating user-managed, open-access radio spectrum without centralized regulation.Spectrum managementRegulating radio frequencies for efficient use and social benefit.Super high frequencySHF enables narrow-beam microwave communication and radar from 3 to 30 GHz.Super low frequencySLF waves penetrate seawater for submarine communication.Ultra high frequencyUHF band spans 300 MHz to 3 GHz, enabling line-of-sight communications.Very high frequencyVHF spans 30–300 MHz, enabling line-of-sight radio for broadcasting, aviation, and marine use.Very low frequencyVLF waves penetrate seawater and propagate globally via Earth–ionosphere waveguide.Volga 149.200Russian military hotline for Ukrainian servicemen to surrender.5G NR frequency bands5G NR frequency bands span sub-6 GHz and millimeter-wave ranges.2008 United States wireless spectrum auctionFirst FCC auction with package bidding and open-access rules.2016 United States wireless spectrum auctionAuction 1001 reallocated 100 MHz of UHF television spectrum for wireless use.
Browse Radio Spectrum in the interactive codex →