J band

J band may refer to. ^[1]

3 relations: J band (infrared), J band (JRC), J band (NATO).

J band (infrared)

In infrared astronomy, the J band refers to an atmospheric transmission window centred on 1.25 micrometres (in the near-infrared).

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J band (JRC)

In the United Kingdom, the term J Band is used by the Joint Radio Company to refer to their VHF communications band at 139.5–140.5 and 148–149 MHz used by fuel and power industries.

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J band (NATO)

The NATO J band is the obsolete designation given to the radio frequencies from 10 to 20 GHz (equivalent to wavelengths between 3 and 1.5 cm) during the cold war period.

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Redirects here:

J band (disambiguation), J-band.

References

[1] https://en.wikipedia.org/wiki/J_band

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