Some years back, before my Imax 2000 11m antenna got torn down by a tree, I did hear collective farm radio traffic some on lowband, from Cuba. Cubans, especially rural ones, have a strong accent, and "compan~ero" was used often. I heard outlying farms reporting in on things like livestock numbers. I think this had something to do with the acute meat shortage they had back then, perhaps this was a measure to defeat the black-market deals.
The best one I heard went like this....it was on a Friday, my translation " send Compan~ero Juan to Havana when the work is over ....for discipline."
I heard this back when the propagation was really running, maybe 2005 or so. I thought I had the frequency still around here, but perhaps will encounter it. I had several setups for lowband, one radio had frequencies programmed in for good stuff I had found, another searching 30-46 mhz. For some reason, 30.0 mhz had a variety of interesting stuff, some sounding like border surveillance, but not Cuban by any means..
Havana is about 800 miles from the QTH, so maybe you can have some luck. I notice the major low-band dxers here use dipoles. It may be a bit of a wait until you start seeing frequent openings again on low-band, but if you monitor enough you will have some luck- maybe not Cuba though.