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Photographed on March 6, 2010 by Glenn PetersSelect image to view a larger version
Valparaiso was an auxiliary (repeater) station on AT&T's first transcontinental microwave route, linking LaPorte, IN to the east and Chicago Heights, IL to the west.
Valapraiso's physical structure is a 191-foot type 4D concrete "silo" tower.
Like all of the stations on the transcontinental route, Valapraiso was originally equipped with KS-5759 delay-lens antennas. These were replaced by KS-15676 horn-reflector antennas, which increased route capacity by allowing the use of more frequencies and two polarizations.
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Created on June 27, 2010 at 22:42 by Albert LaFrance