The electromagnetic spectrum

Figure 1. From frequency 100 Hz to photon energy 1 GeV (wavelength 10,000 km to 1 fm): radio waves, electromagnetic fields, microwaves, ELF, VF, VLF, LF, MF, HF, VHF, UHF, SHF, EHF, optical radiation, infrared, visible, ultraviolet, ionising radiation, x-rays, gamma rays.

Figure 2. From frequency 1 kHz to 1 THz: ITU band, electromagnetic fields, VLF, LF, MF, HF, VHF, UHF, SHF, EHF, RF welders. cellphones, cordless phones, RF fixed links, RF-ID, radar, broadcast, AM, FM, TV, ovens, electronic article surveillance, induction heating, diathermy, radiolocation and radionavigation, satellite uplinks, infrared radiation.

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