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This is clearly an 850hz spaced RTTY (appears to be 75 baud) signal but no matter what settings I use for baud rate in MultiPSK, and no matter what polarity normal or reverse I use, and even after switching to MixW and using their 4 different varieties of ASCII RTTY (as opposed to Baudot, as ASCII RTTY's spectrogram seemed to more resemble the spectrogram of the signal in question than the Baudot RTTY spectrogram did), I can't get any readable text. It looks like just random decoded text like someone just was mashing keys on their keyboard while transmitting the RTTY. I made a recording in an MP3 file and also took a screen cap of Argo's spectrogram of the signal. Is there anything else that would look so similar to 850hz spaced RTTY that it could be mistaken for RTTY? I made my recording and spectrogram at 22:00 UTC. I've put them in a zip file and uploaded to Mediafire. Here's the download link.

Unreadable RTTY.zip