- This article is about the microwave spectrum. For the Super Nintendo and Sega Genesis online adapter, see XBAND. XBAND was an early online console gaming network for SNES and Sega Genesis systems
| ITU Radio Band Numbers |
| ITU Radio Band Symbols |
| NATO Radio bands |
| IEEE Radar bands
HF VHF UHF L S C X Ku K Ka V W edit |
The X band is part of the microwave region of the electromagnetic spectrum. Provision No 21 of the ITU Radio Regulations states 21 The Radio spectrum shall be subdivided into nine frequency bands which Very low frequency or VLF refers to radio frequencies (RF in the range of 3 KHz to 30 KHz. Low Frequency or LF refers to Radio Frequencies (RF in the range of 30 kHz&ndash300 kHz Medium frequency ( MF) refers to radio frequencies (RF in the range of 300 kHz to 3000 kHz High frequency (HF radio frequencies are between 3 and 30 MHz. Very high frequency (VHF is the Radio frequency range from 30 MHz to 300 MHz. Super high frequency (or SHF) refers to radio frequencies (RF in the range of 3 GHz and 30 GHz Extremely high frequency is the highest Radio frequency band. Provision No 21 of the ITU Radio Regulations states 21 The Radio spectrum shall be subdivided into nine frequency bands which Very low frequency or VLF refers to radio frequencies (RF in the range of 3 KHz to 30 KHz. Low Frequency or LF refers to Radio Frequencies (RF in the range of 30 kHz&ndash300 kHz Medium frequency ( MF) refers to radio frequencies (RF in the range of 300 kHz to 3000 kHz High frequency (HF radio frequencies are between 3 and 30 MHz. Very high frequency (VHF is the Radio frequency range from 30 MHz to 300 MHz. Super high frequency (or SHF) refers to radio frequencies (RF in the range of 3 GHz and 30 GHz Extremely high frequency is the highest Radio frequency band. Radio waves are electromagnetic waves occurring on the Radio frequency portion of the Electromagnetic spectrum. This is article is about the wireless term For other uses see A band (disambiguation. The B band is the range of radio frequencies from 250 MHz to 500 MHz in the Electromagnetic spectrum. C band is a name given to certain portions of the Electromagnetic spectrum, as well as a range of Wavelengths of Light, used for communications D band is the range of radio frequencies from 1 GHz to 2 GHz in the Electromagnetic spectrum. The NATO E band is the range of radio frequencies from 2 GHz to 3 GHz in the Electromagnetic spectrum. The F band is the range of radio frequencies from 3 GHz to 4 GHz in the Electromagnetic spectrum. NATO G band The G band in the modern (NATO/EU sense is the range of radio frequencies from 4 GHz to 6 GHz in the Electromagnetic The H band is the range of radio frequencies from 6 GHz to 8 GHz in the Electromagnetic spectrum. The I band is the range of radio frequencies from 8 GHz to 10 GHz in the Electromagnetic spectrum. The J band is the range of radio frequencies from 10 GHz to 20 GHz in the Electromagnetic spectrum. NATO K band The NATO K band is defined as a frequency band between 20 and 40 GHz (7 NATO L band The NATO L band is defined as the frequency band between 40 and 60 G[[Hertz Hz]] (5–7 The M band is the range of radio frequencies from 60 GHz to 100 GHz in the Electromagnetic spectrum. Radio waves are electromagnetic waves occurring on the Radio frequency portion of the Electromagnetic spectrum. High frequency (HF radio frequencies are between 3 and 30 MHz. Very high frequency (VHF is the Radio frequency range from 30 MHz to 300 MHz. NATO L band The NATO L band is defined as the frequency band between 40 and 60 G[[Hertz Hz]] (5–7 The S band ranges from 2 to 4 GHz, crossing the (artificial boundary between UHF and SHF at 3 C band is a name given to certain portions of the Electromagnetic spectrum, as well as a range of Wavelengths of Light, used for communications The Ku band ( pronounced "kay-yoo") is a portion of the Electromagnetic spectrum in the Microwave range of frequencies NATO K band The NATO K band is defined as a frequency band between 20 and 40 GHz (7 The Ka band (Pronounced "Kay-A Band" covers the frequencies of 26 The V band (vee-band of the Electromagnetic spectrum ranges from 40 to 75 GHz The W band of the Microwave part of the Electromagnetic spectrum ranges from 75 to 111 GHz. Microwaves are electromagnetic waves with Wavelengths ranging from 1 mm to 1 m or frequencies between 0 The electromagnetic (EM spectrum is the range of all possible Electromagnetic radiation frequencies Its frequency range is from 7 to 12. 5 GHz. The hertz (symbol Hz) is a measure of Frequency, informally defined as the number of events occurring per Second. The 10. 7-12. 5 GHz portion overlaps the Ku band. The Ku band ( pronounced "kay-yoo") is a portion of the Electromagnetic spectrum in the Microwave range of frequencies
The term is also used informally to refer to the extended AM broadcast band. The extended MW broadcast band (sometimes known as the X-band is a Medium wave broadcast allocation (1629 kHz –1715 kHz
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Satellite Communications
For communications satellites, the standard downlink band (for receiving signals) is from 7. A communications satellite (sometimes abbreviated to comsat) is an artificial Satellite stationed in space for the purposes of Telecommunications. 25 to 7. 75 GHz, and the uplink band (for sending signals) is from 7. 9 to 8. 4 GHz. The typical local oscillator frequency of an X band LNB is 6300 MHz. A local oscillator is an electronic device used to generate a signal normally for the purpose of converting a signal of interest to a different frequency using a mixer A low-noise block converter ( LNB, for low-noise block, or sometimes LNC, for low-noise converter) is the (receiving or Downlink The hertz (symbol Hz) is a measure of Frequency, informally defined as the number of events occurring per Second.
Radar
The 3-cm radar spot-band ranges roughly from 5. A centimetre ( American spelling: centimeter, symbol cm) is a unit of Length in the Metric system, equal to one hundredth Radar is a system that uses electromagnetic waves to identify the range altitude direction or speed of both moving and fixed objects such as Aircraft, ships 2 to 10. 9 GHz. The hertz (symbol Hz) is a measure of Frequency, informally defined as the number of events occurring per Second.
X band radar has a variety of types. Some of these types are continuous-wave, pulsed, single-pole, dual-pole, SAR, or phased array. A continuous wave or continuous waveform ( CW) is an Electromagnetic wave of constant Amplitude and Frequency; and in Mathematical This article is about general theory and electromagnetic phased array X band radar has various uses in civil, military and government institutions; in roles such as weather monitoring, air traffic control, maritime vessel traffic control, defense tracking, and vehicle speed detection for law enforcement. A civilian under International humanitarian law is a person who is not a member of his or her Country 's Armed forces. For the military meaning see Armed forces. For the Soviet sports society see Armed Forces (sports society Armed Forces For the government of parliamentary systems see Executive (government. A weather radar is a type of Radar used to locate precipitation, calculate its motion estimate its type ( Rain Air traffic control ( ATC) is a service provided by ground-based controllers who direct Aircraft on the ground and in the air A vessel traffic service ( VTS) is a marine traffic monitoring system established by harbor or port authorities similar to Air traffic control for aircraft Defence A doppler radar is a Radar using the Doppler effect of the returned echoes from targets to measure their Radial velocity. [1]
X band radar systems have been of great interest in the last few decades. The relative short wavelength at X-band frequencies makes possible high-resolution imaging radars for target identification and target discrimination. In Physics wavelength is the distance between repeating units of a propagating Wave of a given Frequency. Image resolution describes the detail an Image holds The term applies equally to Digital images film images and other types of images Traditional Radar sends directional pulses of Electromagnetic energy and detects the presence position and motion of an object (such as an Aircraft) by analyzing
Terrestrial Communications and Networking
In Ireland, Libya, Saudi Arabia and Canada, the X-Band 10. 15 to 10. 7 segment is used for terrestrial Broadband. Alvarian, Cambridge, and Ogier make systems for this, though these are all incompatible. The Ogier system is a full duplex Transverter used for DOCSIS over microwave. A transverter is a Radio frequency device that consists of an upconverter and a downconverter in one unit Data Over Cable Service Interface Specification ( DOCSIS) is an international standard developed by CableLabs and contributing companies that include ARRIS The home / Business CPE has a single coax with a power adapter connecting to an ordinary Cable Modem. The Local Oscillator is usually 9750 MHz, the same as for Ku Band Satellite TV LNB. Two way applications such as broadband typically use a 350 MHz TX offset.
Amateur Radio
Many countries allow 10. 000 to 10. 500 GHz (with often a gap 10. 27 to 10. 3) for Radio Amateurs.
Motion Detection
Motion detectors often use 10. 525 GHz. [2] 10. 4 GHz is proposed for Traffic Light crossing detectors.
See also
- Cassegrain reflector
- Directional antenna
- XTAR
- Sea-based X-band Radar
- New Horizons#Telecommunications
- Voyager program#Spacecraft design
References
External links
- http://www.ntia.doc.gov/osmhome/allochrt.pdf
- http://www.g3pho.free-online.co.uk/microwaves/wideband.htm
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