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G band

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Title: G band  
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Subject: Radio spectrum, Halifax-class frigate, MWband/doc, GSAT-5P, Galaxy 15
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G band

G band
NATO G band
Frequency range
4 – 6 GHz
Wavelength range
7.5 – 5 cm
Related bands
  • C (IEEE)
  • SHF (ITU)
IEEE G band
Frequency range
110 – 300 GHz
Wavelength range
2.73 – 1 mm
Related bands


  • NATO G band 1
  • IEEE G band 2
  • Obsolete IEEE G band 3
  • References 4

NATO G band

The NATO G band is the range of NATO for electronic countermeasure (ECM) applications.[1][2] This is equivalent to wavelengths between 7.5 cm and 5 cm. It is a subset of the SHF band as defined by the ITU and corresponds to the lower half of the C band (4–8 GHz) as defined by the IEEE.[3][4]

IEEE G band

The modern IEEE G band covers frequencies from 110 to 300 GHz (2.7 mm—1.0 mm) and includes the 118 GHz oxygen and 183 GHz water lines used for atmospheric sounding. It is also referred to as mm in the 2002 IEEE Standard for Letter Designations for Radar-Frequency Bands.[4]

Obsolete IEEE G band

With the older system, the G band covers frequencies from 140 to 220 MHz (1.5 m—1.2 m) and is in the modern A band.[2]


  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. ^ a b 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. ^ a b "521-2002 - IEEE Standard Letter Designations for Radar-Frequency Bands". IEEE. 2003-01-14.  

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