Western Union Tower our next door neighbor

This distinctive facility is located at the corner of 41st St. and Wisconsin Ave. in the Tenleytown neighborhood of northwest Washington DC, near the highest elevation in the city. It was the first common-carrier microwave communications station in the city, and one of the earliest in the United States. Beginning service in 1947 and named the "Tenley Tower" by its owner, the Western Union Telegraph Company, this installation was part of the company's "radio triangle" - a network of microwave radio-relay stations linking Washington, Pittsburgh, and New York City. The inauguration of that system marked the first use of microwave radio for commercial communications, carrying traffic originated by the public. http://coldwar-c4i.net