—
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(TEWA)
Project 6,3 - Effects of Atomic Explosions on the Ionosphere - M. Hawn
OEJECTIVE
The objective of Project 6.3 was to obtain data on the effects of high
yield nuclear explosions on the ionosphere,
Principally, to investigate the
area of absorption, probably due to the high altitude radioactive 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 transmission,
installed in 6 ton trailer vans, one located et Rongerik Atoll and one located
at Kusale in the Caroline Islands.
One ionosphere recorder, type C-3, operating on pulse transmission,
installed in a C-97 aircraft 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 muitiple wire antenna designed and erected, so that the
direction of maximum intensity of radiation will be at the desired vertical
angle over all of the operating frequency range from 1 to 23 megacycles.
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