(1978) "Mystery signal discovered in Eugene area - Strong radio 'pulse' of unknown origin may cause health problems"
Article from "The Register Guard", daily newspaper in northwestern U.S. published in Eugene, Oregon | Author: Mike Thoele
https://news.google.com/newspapers?id=PfJVAAAAIBAJ&sjid=4eEDAAAAIBAJ&pg=6423,7035058
On the correlation of Navy radio signals with the Oregon health symptom mystery of 1978
Note: As R. Becker had mentioned, the Woodpecker had began tapping a year or two earlier.
The Washington Post - March 28, 1978 | https://wapo.st/4rGJRAi
Becker R .http://bit.ly/2EvULDy p.323: "Within a year or two after the woodpecker began tapping, there were persistent complaints of unaccountable symptoms from people in several cities of the United States and Canada, primarily Eugene, Oregon. The sensations—pressure and pain in the head, anxiety, fatigue, insomnia, lack of coordination, and numbness, accompanied by a high-pitched ringing in the ears—were characteristic of strong radio-frequency or microwave irradiation."
Related article: https://oregonnews.uoregon.edu/lccn/2004260239/1978-03-30/ed-1/seq-3.pdf