[kunwon1]

Also, a few more items that I recall being difficult to figure out-

1. FT8 uses a standard frequency setting on each band. The presets are built-in to WSJT-X, or you can find them online. WSJT-X and your SDR client should be set to the same frequency.

2. To decode FT8, your radio should be in USB mode, and your system clock needs to be very accurate (By which I mean, you need NTP)

3. FT8 signals are practically invisible on a normal waterfall display

I had everything hooked up for a few days of head scratching before I realized that I hadn't setup NTP on my PC for reasons that escape me. As soon as my clock was synchronized, messages started pouring in. I have the most luck on the 20 and 40 meter bands.