http://www.nonstopsystems.com/radio/frank_radio_antenna_80m_vertical.htm has been crawled 13 times going all the way back to January 5, 2010.

A crawl can be a duplicate of the last one. It happens about 25% of the time across 420,000,000 websites. FAQ
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February 1, 2012

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Note

This calendar view maps the number of times http://www.nonstopsystems.com/radio/frank_radio_antenna_80m_vertical.htm was crawled by the Wayback Machine, not how many times the site was actually updated. More info in the FAQ.