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Project 6,3 - Effects of Atomic Explosions on the Ionosphere - M, Hawn
OBJECTIVE
The objective of Project 6,3 was to obtain data on the effects of
high yield nuclear explosions on the ionosphere,
Principally, to investi-
gate the area of absorption, probably due to the high altitude radio-
active particles, and to study the effect of orientation relative to the
earth's magnetic field on F2 layer effects,
INSTRUMENTATION
The system comprised:
'
Two Ionosphere recorders, type C-2, operating on pulse trans-
mission, installed in 6 ton trailer vans, one located at Rongerik Atoll
and one located at Kusaie in the Caroline Islands,
One Ionosphere recorder, type C-3, operating on pulse transmission, installed in a C-97 plane based at Eniwetok Island,
Detailed Description:
Ionosphere recorder site (Rongerik Atoll)
site (Kusaie)
AN/CPQ~7, type C-2 Ionosphere recorder with a power output
of 10 KW peak pulse alternately transmitting and receiving automatically
over the range of frequencies from 1 to 25 megacycles,
This equipment
measures and records at vertical incidence the virtual height and
critical frequencies of ionized regions of the upper atmosphere,
A 600 ohm multiple wire antenna designed and erected, so
that the direction of maximum intensity of radiation will be at the
come CIE
VB
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