There are pc cards that decode but I use PC Software that only requires
a regular cable from the receiver to the mic input on your pc. There
are alot of programs available on line. Some freeware others shareware.
Again if you Google Soundcaed decoding software there at lease 2 sited
out there that list them with descriptions and links to downloads.

PCAle
PCHFDL
and iNavtes
are free

JVComm43 is a great shareware program for
HFFAX, RTTY, Navtes, SSTV, Amtor

A Few Years ago I purchased Skysweep Standard that does abot 25
different modes and had a built in DSP module and Audio Recorder.

The receiver that you use should be selective and able to tune to 1 khz
for best results and use USB unless noted by the list you refer to

Good Luck and enjoy,
Charlie