I've never heard an AFT call before or a net on this freq.
Here are some recent "otherness" logs:
5980 Goose-honk jammer; 0408, 7/3; Against nothing & killing
any chance to hear Scandanavian Weekend Radio. Marti
listed off @0300.
6951/U 2-way; Scotch/Welsh/Irish? accents; too much QRN.
0420, 7/7
20049 Random Pipper; 1409, 7/6; single pip every few sec.
randomly spaced