strange.
i came across this browsing the bands because the modulation sounds like its carrier saturated and they are off frequency at 7.504.824Mhz and during a google search, this thread appeared.
sounds like a bad tube(s) in the high level audio modulation circuit.
are they are still having problems with the transmitter ?
perhaps someone inexperienced attempted repairs/adjustments to the transmitter and completely misaligned/fubar'd it ?
just as i was posting this, it suddenly went abruptly off in the middle of music at 0502 UTC without warning (hours of operation, 7 days from 0200 to 0500 UTC)
funny thing is, you can still see traces of a slight carrier on the waterfall just as it went off.
from a little internet research and concluding my opinion based on my observation, this appears to be a station thats has run amuck and has gone into mjor difficulties, technical problems and budget issues, thats all but about ready to shut down and call it a day.
attached is a sound clip recorded 5 minutes before sign off and a waterfall screen shot 30 seconds after sign off.