noun
broadcast signal intrusion; frequency hijacking
Refers to the act of overriding a radio or TV broadcast signal with unauthorized content. Often used in contexts of hacking, protests, or pranks.
その事件は電波ジャックによるものだった。
The incident was due to broadcast signal intrusion.
電波ジャックでテレビに奇妙な映像が流れた
A strange video was broadcast on TV through frequency hijacking.