Matt BlazeThe high seas service wasn't the only use of shortwave radio by AT&T in the 20th century. Through the early 1970's, they also ran "point to point" radio circuits for international voice long distance trunks (supplementing transoceanic cables). The trans-Atlantic site was located near Princeton, NJ, and is now a nature preserve. I recall finding remnants of some of the antennas hiking there around 1990.
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