This is the last of the video taken of Eric down as his lab early last December.
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This is the stereophonic counterpart to the transmission system structure A52-E for determining the physical origin of the telluric signals. The distance between structures is approximately 200 miles.
The major effort was digging guy a guy anchor hole five feet deep in the rock to replace a dead end guy on a telephone cable facility. Also, the effort was made to gather up approximately five miles of abandoned open mile line to use in constructing the new transmission structures. Much more is still needed and no availability has been found yet.
World War 2 emergency defense backup route long distance communication system of J Carrier variety. Later converted to O Carrier for civilian use. Was specifically constructed as an inland major communications link in the event that the West Coast was attacked by the Japanese. It started in Washington state and ended in Los Angeles, California. Only 15 miles left standing shown in the photographs. Line is in very bad shape and ultimately will have to be removed.
Historic obsolete multiplex microwave communication system for Bell Telephone built by Western Electric. Carried television broadcasts, multi-channel long distance telephone message circuits, military autovon circuits. Transcontinental system repeater spacing 30 miles. Total system capacity 10,500 telephone channels.