The northern most radar station operators on Oahu spotted a large blip on the scope just after 7 am. They didn't know what it was. Nor did the young lieutenant who was the sole remaining officer at the Fighter Information Center (FIC), an as-yet nonfunctioning entity. The blip was written off by Lt. Tyler as a flight of B-17s coming in from the Mainland.
There was great interest in how much could have been gained by a correct guess as to the composition of the southbound flight and the appropriate parties were grilled thoroughly. Besides the radar operators and the Lt., questions were also put the men responsible for establishing the FIC and to a truely remarkable man who in Hawaii to share the knowledge of radar he had learned as a member of the Eagle Squadrons during the Battle of Britain.
Read their own words:
INDEX TO WITNESS TESTIMONY REGARDING OPANA POINT RADAR.