http://www.geipelnet.com/barry/PSK31.pdf

I am using one of these interfaces with my Yaesu FT-847 and WinWarbler for PSK31 and MMSSTV for SSTV, both running on a Dell running XP.

I am having a blast on PSK31 and SSTV. PSK31 is really cool, very efficient, very narrowband, takes only a tiny amount of signal to copy. WinWarbler is pretty easy to set up and use, and it interacts with the rest of the DXLAB suite of ham programs for logging and stuff.

All software is free, so go for it!

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Highlander, NA-821 on 11 Meters.
N9RZF, David on Ham Bands.

Yaesu FT-847, Galaxy DX-2517, President Lincoln, Cobra 150 GTL, Uniden Grant LT.