noun
coverage area
Technical term in computing and telecommunications for the geographical or spatial range where a signal, network, or service is available.
このルーターのカバーエリアは約50メートルです。
The coverage area of this router is about 50 meters.
圏内 is a more general term for 'within range' or 'inside a zone', while カバーエリア specifically refers to the area covered by a service or signal.
サービスエリア is often used for highway rest areas or commercial service zones, whereas カバーエリア is more technical and focused on signal/network coverage.
Variant with interpunct; less common in running text.
Loanword from English 'cover area' or 'coverage area', used in Japanese primarily in technical contexts.