From Wikipedia, the free encyclopedia
J band may refer to:
- J band (infrared), an atmospheric transmission window centred on 1.25 μm
- J band (JRC), radio frequency bands from 139.5–140.5 and 148–149 MHz
- J band (NATO), a radio frequency band from 10 to 20 GHz
|This disambiguation page lists articles associated with the title J band.
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