Wavelengths of Life and Death
The Bands of the Electromegnetic Spectrum
| Band | Wavelength | Frequency |
|---|---|---|
| MF medium frequency | 300-3000 kHz | |
| HF high frequency | 3-30 MHz | |
| Radio FM ShortWave | 20 cm - 20 m 2.5-3.5 m 20 cm - 2.5 m | 15 MHz - 1.5 GHz 85-120 MHz 120 MHz - 1.5 GHz |
| Microwave | 0.01-20 cm | 1.5-3000 GHz |
| EHF extremely high frequency | 30-300 GHz | |
| Far Infrared | 20,000-100,000 nm | 3000-15000 GHz |
| Near Infrared | 700-20,000 nm | 15000-430,000 GHz |
| Visible Red Orange Yellow Green Blue Violet | 400-700 nm 620-760 nm 570-620 nm 550-570 nm 470-550 nm 440-470 nm 380-440 nm | 430,000-750,000 GHz |
| Ultraviolet | 50-190-400 nm | 1015 - 1017 Hz |
| Soft XRay | 1-20 nm | 1017 - 1020 Hz |
| Hard XRay | 0.1-1 nm | |
| Gamma ray | 0.1 - 0.000001 nm | Highest 1020 - 1024 Hz |
EM Specrtum used in Broadcasting and Wirelass
Some common frequency bands| AM radio | 535 kilohertz to 1.7 megahertz |
| Short wave radio | 5.9 megahertz to 26.1 megahertz |
| Citizens band (CB) radio | 26.96 megahertz to 27.41 megahertz |
| Television stations, channels 2 through 6 | 54 to 88megahertz |
| FM radio | 88 megahertz to 108 megahertz |
| Television stations, channels 7 through 13 | 174 to 220 megahertz |
Some Wireless Technology Bands
| Garage door openers, alarm systems | Around 40 megahertz |
| Standard cordless phones | 40 to 50 megahertz |
| Baby monitors | 49 megahertz |
| Radio controlled airplains | Around 72 megahertz |
| Radio controlled cars (different from above) | Around 75 megahertz |
| Wildlife tracking collars | 215 to 220 megahertz |
| MIR space station | 145 to 437 megahertz |
| Cell phones | 824 to 849 megahertz |
| New 900 MHz cordless phones | Around 900 megahertz (obviously)z |
| Air traffic control radar | 960 to 1,215 megahertz |
| Global Positioning System | 1,227 and 1,575 megahertz |
| Deep space radio communications | 2,290 megahertz to 2,300 megahertz |