Assertion: radar | /r/HasProperty | the scr-268
Facets:
value: at a frequency of 100 mhz
type: LOCATION
value: for detecting aircraft
type: PURPOSE
value: for controlling antiaircraft gunfire
type: PURPOSE
Source sentences:
text: The first radars developed by the U.S. Army were the SCR-268 (at a frequency of 205 MHz) for controlling antiaircraft gunfire and the SCR-270 (at a frequency of 100 MHz) for detecting aircraft.