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Project 6.4 - Determination of Characteristics of Airborne Flush Mounted
Antennas and Photo Tubes for Yield Determination at Extended
Ground-to-Air Ranges - A. J, Waters
OBJECTIVES
To determine the effectiveness of flush mounted airborne antennas
and phototubes at various ground-to-air ranges in detecting characteristic
low frequency electromagnetic radiation and visible radiation, respectively,
To determine the temporal and amplitude characteristics of the low
frequency electromagnetic radiation at various ground-to-air ranges,
To determine the temporal and intensity characteristics of visible
radiation at various ground-to-air ranges,
To determine the effects of ambient conditions upon the satisfactory
measurement of the parameters specified in the first two items,
INSTRUMENTATION
2 fiducial antennas
2 scope cameras
1 synchronizer
1 sequence camera
2 photoheads
1 recorder
2 DuMont Scopes (1 a dual beam, 1 a sirgle beam)
TECHNIQUE
Signal is received by antenna fed through an amplifier and then to
the scope,
The signal is then photographed.
directly to the recorder,
The sequence camera photographs the blast directly
for use in correlation of previous data.
434 miles,
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Photohead output is led
- 32 ~
Distance was approximately