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I have been tuning in to short-wave for a while now and just started trying to decrypt digital signals like psk31. However, this signal is unlike any others I've heard. On the waterfal, it seems to have multiple carriers in one transmission (6 or 7 looking by eye). Then shortly after there are three very spaced out carriers. I have searched everywhere for information on this and cannot dig up anything other than that it is "possibly a weather fax".