Strange data signal on 3.528 …anyone else hearing it?

I ve been hearing this signal her in NE PA. Its centered on 3.528 but its pretty wide..from 3.524 to 3.532 . Its 7 short blips then 1 longer one and then resets. For the full article, https://forums.qrz.com/index.php?threads/strange-data-signal-on-3-528-anyone-else-hearing-it.590803/

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