Assertion: radar's antenna | /r/CapableOf | cover an elevation of 40°
Facets:
value: with two feedhorns
type: OTHER
value: from the horizon
type: LOCATION
Source sentences:
text: The antenna covers an elevation of 40° from the horizon with two feedhorns which create two stacked overlapping vertical lobes 4° apart; the lower beam transmits the outgoing pulse and is used to detect distant targets near the horizon, while the upper receive-only beam detects closer higher elevation aircraft with less ground clutter.