The psk31lx program works in character mode, although it uses characters for the tuning display, so it might not be suitable for braille. It uses the soundcard. http://radio.linux.org.au/download/psk31lx-0.71.tar.gz The Kantronics KAM-XL is the only TNC that I am aware of which does RTTY and PSK31. http://www.kantronics.com 73, Bob, N7XY