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J band
J band can refer to three different regions of the electromagnetic spectrum, in the radio and near-infrared. ==NATO== The NATO J band is the range of radio frequencies from 10 GHz to 20 GHz in the system of letter designations for frequency bands used by NATO for electronic countermeasure (ECM) applications. This is equivalent to wavelengths between . The J band is a subset of the SHF band as defined by the ITU. The J band intersects with the X band and K band of the older IEEE classification system. The Ku band is within the J band.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「J band」の詳細全文を読む
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