om mogacycles, The tranamitting and receiving antennas and the ground plane were in mutual porpeniicwar planes with the plane of the tranemitticy antennas o-fonte! 52 dagrees to the faat of Magnetic Nowt', Tonosphere recorier site (5-97 airplane! Same as for Kongerik and Susaie, except that a C-3 Iono“phere recomier vas usai, This reco-ter is tha same as the C-2, except for a few modifications eni improvemerte. The transmitting antenca in the C-97 was a single wire telta fastened to the Isteral extremitics ~f the tal! assembly, OPPRAT ION Ground stations at Ronperik ant Kusaie, using 15 secor’ sveep sperated on noma? 74 hour schedule, $ sveeps par hour. Airborne Station °-77: Tii not participate in this test. Aisplane was at “Yickar AFR fo- 200 heur maictenanes cheek. anes Ttations at both Pongerix ant Fucale operated successful? during this test, C.-T alrtorne station 11} not partictpate. “here wera no noticeatte effeets on the Tonosphere from thie Rest, E COPY BEST AVAILABL -3l-