sa . yee . .* a a Pere S) QE(crceurc) Ny Project (.4 - Determinetion of Characteristics of Airborne Flush Mounted Antennas end Photo Tubes “or Yield Determination at Extended Ground-toeAir Ranges - A. J. Waters OBJECTIVES To determine the effectiveness of flush mounted airborne antennas and phot otubes at various ground-to-air ranges in detecting characteristic low frequency electromagnetic radiation and visible radiation, respectively. To determine the tempora] and arplitude characteristics of the low frecuency electromagnetic rediation at warious ground-to-sir ranres. To determine the temporal sod intensity characteristics of visible radiation at warious cround-to-eir ranges. To determine the effects of ambient conditions upon the satisfactory measurement of the perancters specifiod 1: the first two items, SEER 2 fiducial antennas 1 scope camera 1 synchronizer 1 DuMont Scope (dual pean) TESENIOUE Signal is received bv antenna fed through an amp ifier and then to the soope. The signal is then photographed. Distance was approximately 16 miles, RESULTS Equipment vas set up on Parry Island. antennas, Signal vase received by both Picture wes taken and recorded. Pecaus- of di��forence in channel settings on the scope, one trace is visible, the other is of scale. 3257 AVAILATLSE CO ox om tar 8 sys “ P - 19 - ~~] at COMEDA Rr - sae