OK, here we go with the West Coast CB CH 38LSB, 27.365MHz, '1, 1, 1, 1', jammer.

[ThaDood]

https://www.reddit.com/r/cbradio/comments/18a6rlg/what_is_this_interference_i_get_fading_in_and_out/   Since the beginning of Cycle 25's F2 Propagation, this dude has been heard on the East Coast, most days, for years doing this. (What's he using to cool his finals, and where do I get them?) He certainly doesn't cool tempers over here during the daylight hours, and even about 2 hours after sunset. That does make for an interesting Propagational Beacon, but that's an interest that wears-off within seconds. In West Virginia, it's a strong, S9, +S10/9, even stronger at times, signal over here. Hey... At least this dude is too far to be heard by me when it's Sporadic "E" season.

[RadioMon]

When I do hear that mess it ranges anywhere between S6 to a little over S9 (northern Ohio) and thankfully fades out after a few hours.

Really surprised someone hasn't IDed this one yet.