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Project 6.3 - Effects of Atomic Explosion on the Ionosphere M. Hawn
OBJECTIVE
The objective of Project 6.3 is 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 orien-
tation relative to the earth's magnetic field on F2 layer effects.
INSTRUMENTATION
The system comprises:
Two Ionosphere recorders, type C-2, operating on pulse trans-
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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:
Tonesphere recorder site (Rongerik Atoll)
site (Kusaie)
AN/C®Q-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 desired
vertical angle over all of the operating frequency range from 1 to 23
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