frequency band
Technical term used in telecommunications, radio, and signal processing to refer to a specific range of frequencies.
この通信システムは広い周波帯を使っている。
This communication system uses a wide frequency band.
Compound of 周波 (shūha, 'frequency') + 帯 (tai, 'band'). The exact historical derivation is uncertain, but the term follows standard Sino-Japanese word formation patterns.