[RTTY] what mode is this?

[Kok Chen]

 From KE1JF's wav file, it is Multi-toned FSK of some sort, close to  
400 Hz wide

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I took a look at the bins in cocoaModem's MFSK16 tuning indicator and  
see this:

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The separation of the tones is wider than MFSK16.  The red ticks are  
31.25 Hz apart and MFSK16 tones fall neatly in them.  The tone  
separation of this signal appears to be about 1.5 times wider.

I am going to try resampling the pitch next to see if it is just  
upsampled MFSK16 :-).

73
Chen, W7AY