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H band

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H band

NATO H band
Frequency range
6 - 8 GHz
Wavelength range
5 – 3.75 cm
Related bands
  • C (IEEE)
  • SHF (ITU)

H band can refer to two different regions of the electromagnetic spectrum, in the radio and near-infrared.

Radio

The NATO H band is the range of NATO for electronic countermeasure (ECM) applications.[1][2] This is equivalent to wavelengths between 5 cm and 3.75 cm. It is a subset of the SHF band as defined by the ITU and corresponds to the upper half of the C band (4–8 GHz) as defined by the IEEE.[3][4]

Infrared astronomy

Atmospheric windows in the infrared. The H band is the transmission window centred on 1.65 micrometres

In infrared astronomy, the H band refers to an atmospheric transmission window centred on 1.65 micrometres with a Full width at half maximum of 0.35 micrometres[5] (in the near-infrared).

References

  1. ^ Leonid A. Belov; Sergey M. Smolskiy; Victor N. Kochemasov (2012). Handbook of RF, Microwave, and Millimeter-Wave Components. Artech House. pp. 27–28.  
  2. ^ Norman Friedman (2006). The Naval Institute Guide to World Naval Weapon Systems. Naval Institute Press. pp. xiii–xiv.  
  3. ^ "V.431: Nomenclature of the frequency and wavelength bands used in telecommunications". ITU-R. 2006-01-04. Retrieved 2014-02-03. 
  4. ^ "521-2002 - IEEE Standard Letter Designations for Radar-Frequency Bands". IEEE. 2003-01-14.  
  5. ^ Ian McClean, Electronic Imaging in Astronomy, Second Edition, Springer, 2008.


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