megacycles, The transmitting and receiving antennas and the ground plane were in mutual perpendicular planes with the plane of the transmitting antenna oriented 53 degrees to the East of Magnetic North, Ionosphere recorder site (C-97 airplane) Same as for Rongerik and Kusaie, except that a C-3 Ionosphere recorder was used. This recorder is the same as the C-2, except for a few modifications and improvements. The transmitting antenna in the C-97 was a single wire delta fastened to the lateral extremities of the tail assembly. OPERATIONAL Ground stations at Rongerik and Kusaie, using 15 second sweep q operated on normal 24 hour schedule, 5 sweeps per hour. Airborne Station C-97: Did not participate in this test. Airplane was at Hickam AFB for 200 hour maintenance check. RESULTS Stations at both Rongerik and Kusaie operated successfully during this test. C-97 airborne station did not participate. There were no noticeable effects on the Ionosphere from this tS R KN test,

Select target paragraph3