field of coverage

Today laptop and plug-into-the-nearest-phone computers, worldwide 800 numbers, and communications networks can broaden their field of coverage.

As the oncoming enemies dropped within the field of coverage of his targeting systems, one briefly jittered within his brackets.

Picking out the biggest fortress in the neighborhood, with its correspondingly large field of coverage, he insinuated his mind into that of one observing officer after another.

In 1976, the Jewish Telegraph decided to widen its field of coverage and established a separate Leeds edition with its own editorial and advertising staff and office in that city.