Difference between revisions of "Spectrum"
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== References == | == References == | ||
| − | * | + | * [[Radio Spectrum Management and Allocations]] - Has links to spectrum charts and and allocation tables. |
| − | * | + | * [http://en.wikipedia.org/wiki/Electromagnetic_spectrum Wikipedia electromagnetic spectrum article] |
| − | |||
<br> | <br> | ||
[[Category: RR Glossary]] | [[Category: RR Glossary]] | ||
| + | <!-- Glossaries Categories --> | ||
| + | [[Category:RR Glossary]] | ||
| + | [[Category:Amateur Radio Glossary]] | ||
| + | [[Category:Aviation Glossary]] | ||
| + | [[Category:Database Glossary]] | ||
| + | [[Category:HF Glossary]] | ||
| + | [[Category:Medical Glossary]] | ||
| + | [[Category:Military Glossary]] | ||
| + | [[Category:Professional Radios Glossary]] | ||
| + | [[Category:Receivers Glossary]] | ||
| + | [[Category:Scanners Glossary]] | ||
| + | [[Category:Signal Analysis and Decoding Glossary]] | ||
| + | [[Category:Software Glossary]] | ||
| + | [[Category:Trunktracking Glossary]] | ||
| + | |||
| + | <!-- (Countries') Frequencies categories --> | ||
| + | [[Category:Australia Frequencies]] | ||
| + | [[Category:Canada Frequencies]] | ||
| + | [[Category:Canada Common Frequencies]] | ||
| + | [[Category:New Zealand Frequencies]] | ||
| + | [[Category:United Kingdom Frequencies]] | ||
| + | [[Category:United States Air Force Frequencies]] | ||
| + | [[Category:United States Army Frequencies]] | ||
| + | [[Category:United States Coast Guard Frequencies]] | ||
| + | [[Category:United States Navy Frequencies]] | ||
| + | [[Category:US Bureau of Reclamation Frequencies]] | ||
| + | [[Category:US Civil Air Patrol Frequencies]] | ||
| + | [[Category:US Common Frequencies]] | ||
| + | [[Category:US Defense Frequencies]] | ||
| + | [[Category:US Federal Government Frequencies]] | ||
| + | [[Category:US Federal Prisons Frequencies]] | ||
| + | [[Category:US Fish and Wildlife Frequencies]] | ||
| + | [[Category:US Forest Service Frequencies]] | ||
| + | [[Category:US Indian Affairs Frequencies]] | ||
| + | [[Category:US Land Management Frequencies]] | ||
| + | [[Category:US National Parks Frequencies]] | ||
| + | [[Category:US and Canadian Common Amateur Radio Frequencies]] | ||
| + | [[Category:US and Canadian Common Aviation Frequencies]] | ||
| + | [[Category:US and Canadian Common Business Frequencies]] | ||
| + | [[Category:US and Canadian Common Fast Food Frequencies]] | ||
| + | [[Category:US and Canadian Common Frequencies]] | ||
| + | [[Category:US and Canadian Common Marine or Maritime Frequencies]] | ||
| + | [[Category:US and Canadian Common Media Frequencies]] | ||
| + | [[Category:US and Canadian Common Railroads Frequencies]] | ||
| + | [[Category:US and Canadian Common Recreation or Attractions Frequencies]] | ||
| + | |||
| + | <!-- (Themes/Special Topics) Frequencies categories --> | ||
| + | [[Category:Air National Guard Frequencies]] | ||
| + | [[Category:Air Show Frequencies]] | ||
| + | [[Category:Amateur Radio Frequencies]] | ||
| + | [[Category:Amateur Radio Repeaters]] | ||
| + | [[Category:Army National Guard Frequencies]] | ||
| + | [[Category:Aviation Frequencies]] | ||
| + | [[Category:Business Frequencies]] | ||
| + | [[Category:CSX Transportation Frequencies]] | ||
| + | [[Category:Civil Aviation Frequencies]] | ||
| + | [[Category:Common Carriers Frequencies]] | ||
| + | [[Category:Communications Providers Frequencies]] | ||
| + | [[Category:Education Frequencies]] | ||
| + | [[Category:Fast Food Frequencies]] | ||
| + | [[Category:Fire Services Frequencies]] | ||
| + | [[Category:Fire Services Aviation Frequencies]] | ||
| + | [[Category:Ground Transportation Frequencies]] | ||
| + | [[Category:HF Frequencies in Marine or Maritime]] | ||
| + | [[Category:Law Enforcement Frequencies]] | ||
| + | [[Category:Law Enforcement Aviation Frequencies]] | ||
| + | [[Category:Major Events and Disasters Frequencies]] | ||
| + | [[Category:Marine or Maritime Frequencies]] | ||
| + | [[Category:Media Frequencies]] | ||
| + | [[Category:Medical Frequencies]] | ||
| + | [[Category:Medical Aviation Frequencies]] | ||
| + | [[Category:Military Frequencies]] | ||
| + | [[Category:Military Aviation Frequencies]] | ||
| + | [[Category:Motor Freight Frequencies]] | ||
| + | [[Category:Railroads Frequencies]] | ||
| + | [[Category:Recreation or Attractions Frequencies]] | ||
| + | [[Category:Special Events Frequencies]] | ||
| + | [[Category:Sports Events and Organizations Frequencies]] | ||
| + | [[Category:Utilities Frequencies]] | ||
| + | [[Category:Weather Frequencies]] | ||
Latest revision as of 07:16, 11 March 2016
Spectrum is the distribution of wavelengths and frequencies.
In scanning and radio frequency uses, we often refer to a bandwidth of spectrum as a "band". These "bands" are frequencies that exist in a continuous range and usually have a common characteristic which identify it as a type of band.
These bands are divided by the area of the spectrum in which they are located. Those "bands" are commonly accepted to conform to the following table:
| Abbreviation | Name | Frequency | Wavelength |
|---|---|---|---|
| ELF | Extremely Low Frequency | < 3 kHz | > 100 km |
| VLF | Very Low Frequency | 3 kHz - 30 kHz | 100 km - 10 km |
| LF | Low Frequency | 30 kHz - 300 kHz | 10 km - 1000 m |
| MF | Medium Frequency | 300 kHz - 3 MHz | 1000 m - 100 m |
| HF | High Frequency | 3 MHz - 30 MHz | 100 m - 10 m |
| VHF | Very High Frequency | 30 MHz - 300 MHz | 10 m - 1 m |
| UHF | Ultra High Frequency | 300 MHz - 3 GHz | 1 m - 10 cm |
| SHF | Super High Frequency | 3 GHz - 30 GHz | 10 cm - 1 cm |
| EHF | Extremely High Frequency | 30 GHz - 300 GHz | 1 cm - 1 mm |
References
- Radio Spectrum Management and Allocations - Has links to spectrum charts and and allocation tables.
- Wikipedia electromagnetic spectrum article
Categories:
- RR Glossary
- Amateur Radio Glossary
- Aviation Glossary
- Database Glossary
- HF Glossary
- Medical Glossary
- Military Glossary
- Professional Radios Glossary
- Receivers Glossary
- Scanners Glossary
- Signal Analysis and Decoding Glossary
- Software Glossary
- Trunktracking Glossary
- Australia Frequencies
- Canada Frequencies
- Canada Common Frequencies
- New Zealand Frequencies
- United Kingdom Frequencies
- United States Air Force Frequencies
- United States Army Frequencies
- United States Coast Guard Frequencies
- United States Navy Frequencies
- US Bureau of Reclamation Frequencies
- US Civil Air Patrol Frequencies
- US Common Frequencies
- US Defense Frequencies
- US Federal Government Frequencies
- US Federal Prisons Frequencies
- US Fish and Wildlife Frequencies
- US Forest Service Frequencies
- US Indian Affairs Frequencies
- US Land Management Frequencies
- US National Parks Frequencies
- US and Canadian Common Amateur Radio Frequencies
- US and Canadian Common Aviation Frequencies
- US and Canadian Common Business Frequencies
- US and Canadian Common Fast Food Frequencies
- US and Canadian Common Frequencies
- US and Canadian Common Marine or Maritime Frequencies
- US and Canadian Common Media Frequencies
- US and Canadian Common Railroads Frequencies
- US and Canadian Common Recreation or Attractions Frequencies
- Air National Guard Frequencies
- Air Show Frequencies
- Amateur Radio Frequencies
- Amateur Radio Repeaters
- Army National Guard Frequencies
- Aviation Frequencies
- Business Frequencies
- CSX Transportation Frequencies
- Civil Aviation Frequencies
- Common Carriers Frequencies
- Communications Providers Frequencies
- Education Frequencies
- Fast Food Frequencies
- Fire Services Frequencies
- Fire Services Aviation Frequencies
- Ground Transportation Frequencies
- HF Frequencies in Marine or Maritime
- Law Enforcement Frequencies
- Law Enforcement Aviation Frequencies
- Major Events and Disasters Frequencies
- Marine or Maritime Frequencies
- Media Frequencies
- Medical Frequencies
- Medical Aviation Frequencies
- Military Frequencies
- Military Aviation Frequencies
- Motor Freight Frequencies
- Railroads Frequencies
- Recreation or Attractions Frequencies
- Special Events Frequencies
- Sports Events and Organizations Frequencies
- Utilities Frequencies
- Weather Frequencies