What about the following?
- - - - posted to WOR iog back in 2021:
** CUBA. 13676 & 13804 approx., May 27 at 0326, FM spurblobs with
really loud tone between F and F# above Cmiddle; out of RHC 13740-AM
S9+20/30 during music. Also much weaker multiples of ~64 kHz further
out: 13867 vs RTTY 13870; 13932, 13995; 13614, 13550, 13486; 13423 vs
CODAR. Unusual to hear this late, but fundamental signal is holding up
very strong.
13562, 13630 S4-S5; 13769, 13837 traces at ~69 kHz intervals out of
same transmitter when it`s fundamentally on 13700-AM in the morning,
1404 UT May 27. Something`s always wrong at RHC (Glenn Hauser, OK,
WORLD OF RADIO 2088)