The Electromagnetic Radiation Spectrum - Unihedron

1 Sourcesof EMRS ourcesof EMRH umanBrainPowerLines(50,60Hz)InductionHea tingCellphoneMicro-waveovenRadarLightbul bPeopleRadiotowerX-RaymachinesRadioac-ti veelementsSizes ofEMRS izes ofEMRE arth12, m-800nmVirus 17-300nmGAMMA RAYSX-RAYSULTRAVIOLETVISIBLEINFRAREDMICR OWAVERADIO (Delta brain waves)3Hz (Theta brain waves)8Hz8Hz (Alpha brain waves)12Hz (Low Beta brain waves)15Hz (Mid Beta brain waves)18Hz (High Beta brain waves)30Hz (Gamma brain waves)SSSSSSS50Hz Powerv=100Hz Lightsp=60Hz Powerv=120Hz Lightsp=150Hz3rd harmonic180Hz3rd harmonic400 HzAirplane PowerAM Radio54060070080090010001100120013001400 15001600 AGround Wave Emergency NetworkEurope and Asia AMEU&Asia AMRadiolocationMaritime MobileMaritime MobileNavigational BeaconsNavigational BeaconsMarine RadioMarine RadioMorse codeSOSB eaconsX-BandBeaconsMarineMarineSOSM arineAeronauticalAeroLORAN-C navigationRadionavigationMaritime MobileMaritime MobileMaritime MobileMaritime MobileMaritime MobileMaritime

2 MobileMarineMarineAeroMarineAeroMarineAe roInternationalIntnl. and relaysAeroMarineMarineAeroMarineRemote CtrlPPPPPPPPPC ordless Phone (Out)(In) MobileMilitarySOSM ilitaryGovSOS160 Meters Ham Radio120m Tropics90m80m Ham Radio60mTropics49m40m Ham25m22m20m19m16m15m13m11m10m Ham6m Ham Radio2m114m3/4m P-band (Previous)u1 GHzMicrowave L-band(Long)HT-7T-8T-8T-9T-10T-11T-12T-1 3T-1423405069596979899070809101112131415 1617181920212223242526272829303132333435 3637383940414243444546474849505152535455 5657585960616263646566676869707172737475 7676777879808182838485868788899091929394 1001011021031041051061071081091101111121 1311411511611711811912012112212312412512 6127128129130131132133134135136137138139 1401411421431441451461471481491501511521 53154155156157158 CPCPCPCell PhoneWWWu2 GHzMicrowave S-band (Short)Cordless C-band (Compromise)

3 W-LANW ireless LANITFS010203040506070809101112131415161 718192021222324u8 GHzMicrowave X-band (X marks the spot) Ku-band (Kurtz Under)u18 GHzMicrowave K-band (Kurtz)ututututututututututututututututu tutututututututututututututututKu-band TVututututututututututututututututututut utututututututututututututWater absorption Ka-band (Kurtz Above)u36 GHzMicrowave Q-bandu46 GHzMicrowave V-bandu56 GHzMicrowave W-bandO2absorption 60 GHzu100 GHzO2absorption absorption 183 GHzu100 m3 THzFar Infraredu30 mThermal Infraredu3 mNear InfraredEDFAEDFAD atacomTelecomuuuuuuuuuuuuuuuuuuuuuuuuuuu uuuuuuuuuuuVISIBLE SPECTRUMVISIBLE SPECTRUMBVRIJHK400nmUV-AUV-A1UV-A2340nm3 20 315nmUV-B280nmUV-CEUV (Extreme Ultraviolet)

4 100nm10nmSoft XRay1nmHard Gm103 Gm122 Gm145 Gm173 Gm205 Gm244 Gm290 Gm345 Gm410 aeV105 Gm488 aeV125 mHz125 Gm580 aeV149 Gm690 aeV177 Gm821 aeV210 Gm976 aeV250 mHz250 feV297 mHz952 feV354 mHz800 feV420 mHz673 feV500 mHz500 mHz566 feV595 mHz476 feV707 mHz400 feV841 mHz337 Hz283 Hz238 Hz200 Hz168 Hz141 Hz119 Hz100 Mm105 Mm125 Mm149 Mm177 Mm210 Mm250 Mm297 Mm353 Mm420 feV108 Mm500 feV128 Hz128 Mm594 feV152 Mm707 feV181 Mm840 feV215 Mm999 feV256 Hz256 peV304 Hz929 peV362 Hz782 peV431 Hz657 peV512 Hz512 Hz553 peV609 Hz465 peV724 Hz391 peV861 Hz329 kHz276 kHz232 kHz195 kHz164 kHz138 kHz116 km108 km128 km152 km181 km215 km256 km304 km362 km430 peV110 km512 peV131 kHz131 km608 peV156 km724

5 PeV185 km860 peV220 neV262 kHz262 neV312 kHz908 neV371 kHz763 neV441 kHz642 neV524 kHz524 kHz540 neV623 kHz454 neV741 kHz382 neV882 kHz321 MHz270 MHz227 MHz191 MHz160 MHz135 MHz113 m110 m131 m156 m185 m220 m262 m312 m370 m441 neV113 m524 neV134 MHz134 m623 neV160 m741 neV190 m881 neV226 eV268 MHz268 eV319 MHz886 eV380 MHz745 eV451 MHz627 eV537 MHz537 MHz527 eV638 MHz443 eV759 MHz373 eV903 MHz313 GHz264 GHz222 GHz186 GHz157 GHz132 GHz111 mm113 mm134 mm160 mm190 mm226 mm268 mm319 mm379 mm451 eV116 mm536 eV137 GHz137 mm638 eV163 mm759 eV194 mm902 eV231 meV275 GHz275 meV327 GHz866 meV389 GHz728 meV462 GHz612 meV550 GHz550 GHz515 meV654 GHz433 meV777 GHz364 meV925 GHz306 THz257 THz216 THz182

6 THz153 THz129 THz108 m115 m137 m163 m194 m231 m275 m327 m388 m462 meV118 m549 meV141 THz141 m653 meV167 m777 meV199 m924 meV237 eV281 THz281 eV335 THz845 eV398 THz711 eV473 THz598 eV563 THz563 THz503 eV669 THz423 eV796 THz355 eV947 THz299 PHz251 PHz211 PHz178 PHz149 PHz126 PHz106 nm118 nm141 nm167 nm199 nm237 nm281 nm335 nm398 eV102 nm473 eV121 nm563 eV144 PHz144 nm669 eV171 nm796 eV204 nm946 eV242 keV288 PHz288 PHz982 keV343 PHz826 keV408 PHz694 keV485 PHz584 keV576 PHz576 PHz491 keV686 PHz413 keV815 PHz347 keV969 PHz292 EHz245 EHz206 EHz174 EHz146 EHz123 EHz103 Ray eV1 m Hz1 eV m1 CivilGPSL2 [L5 SoL]

7 GPSS paceCs-133 9,192,631,770Hz SI-time standardULF Ultra Low Frequency3 HzELF Extremely Low Frequency30 HzVLF Very Low Frequency3kHzLF Low Frequency30kHzMF Medium Frequency300kHzHF High Frequency3 MHzVHF Very High Frequency30 MHzUHF Ultra High Frequency300 MHzSHF Super High Frequency3 GHzEHF Extremely High Frequency30 GHz300 GHzMicrowave mm-bandMicrowave mm-bandTerahertz rays3 THz400300200nm100nm10nmNUVMUVFUVEUVVUVLo ng Wave radioShort Wave radioUltrasonicHuman Audible rangeSubsonic - InfrasoundHeartbeatsOcean WavesMechanicalWavesOne CyclePer SecondIonizing

8 Radiation : Harmful to living GHz600 GHz400 MJy/sr0 MJy/srIntensityCosmicMicrowaveBackground Radiation CMB Radiation is the leftover heat from the hot early universe,which last scattered about 400,000 years after the Big Bang. CMB permeates the entire universe at a temperature of CMB was predicted in the 1940 s by Ralph Alpher, GeorgeGamow and Robert Herman. Arno Penzias and Robert Wilson accidentally discovered CMBwhile working for Bell Telephone Laboratories in 1965. The intensity is measured in Mega Jansky (Jy) per 10 26W/m2/HzClose examination of slight CMB intensityvariations in different parts of the sky helpcosmologists study the formation of photo by NASAThe Electromagnetic Radiation SpectrumHow to read this chart This chart is organized in octaves (frequency doubling/halving) starting at 1Hz andgoing higher (2,4,8, etc) and lower (1/2, 1/4, etc).

9 The octave is a natural way torepresent frequency. Frequency increases on the vertical scale in the upward direction. The horizontal bars wrap around from far right to far left as the frequency increasesupwards. There is no limit to either end of this chart, however, due to limited space, only the known items have been shown here. A frequency of 0Hz is the lowestpossiblefrequency but the method of depicting octaves used here does not allow for everreaching 0Hz, only approaching it. Also, by the definition of frequency (Cycles persecond), there is no such thing as negative frequency.

10 Values on the chart have been labelled with the following colours:Frequencymeas-ured in Hertz,Wavelengthmeasured in meters,Energymeasured in Light Ultraviolet light is beyond the range of human vision. Physicists have divided ultraviolet light ranges into Vacuum Ultraviolet (VUV), Ex-treme Ultraviolet (EUV), Far Ultraviolet (FUV), Medium Ultraviolet (MUV), andNear Ultraviolet (NUV). UV-A, UV-B and UV-C were introduced in the 1930 s by the Commission Interna-tionale