EU-NATO-US frequency bands

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The European Union (EU), NATO, and the United States military have agreed on a set of EU-NATO-US ECM frequency bands for electromagnetic frequencies used primarily for radar. It does not have good coverage of the lower frequencies used in radio and specialized radar systems.

See ITU frequency bands for a system more user-friendly for both radar and radio, and the IEEE frequency bands for a nomenclature that is common in more civilian-oriented radar discussions.

Frequency range Wavelength EU/NATO/US ECM band
to 250 MHz to 1.2 m A band
250-500 MHz 1.2 m to 600 cm B band
500 MHz-1 GHz 600 cm to 300 cm C band
1-2 GHz 300 cm to 150 cm D band
2-3 GHz 150 cm to 100 cm E band
3-4 GHz 100 cm to 75 cm F band
4-6 GHz 75 cm to 5 cm G band
6-8 GHz 5 cm to 3.75 cm H band
8-10 GHz 3.75 cm to 3 cm I band
10-20 GHz 3 cm to 1.5 cm J band
20-40 GHz 1.5 cm to 750 mm K band
40-60 GHz 750 mm to 500mm L band
60-100 GHz 500 mm to 300mm M band

Millimeter wave frequencies begin in the K band.