Assertion: antenna's signal | /r/HasProperty | need
Facets:
Source sentences:
text: The ideal application for a directional antenna would be to have a -91 to -135 dBm signal outside of the building, a need to improve a weak signal for only one carrier, less than 30-feet of space on your roof from other antennas, and 30-feet of separation between your indoor and outdoor antennas.