$168 and $169 have been observed on this in the past.
FL, MA, NC and TX
One thought was USPS OIG, but that might be a WAG
Originally Posted by kevino
Hearing limited (but encrypted) traffic on 414.5625 N168 from roughly 17 miles due west of downtown Chicago today. Unable to tell if it is simplex or a repeater. FWIW, POTUS will give a speech in Chicago tonight, no way to know if this is connected or not. No previous local reception notes for this freq.