psk31lx(1) on Linux
The text 5d3c39cf280d, as Debian 5.0 (Lenny), Debian 4.0 (Etch), Debian 3.1 (Sarge) shipped it.
amateur radio PSK31 modem via soundcard
The text 5d3c39cf280d, as Debian 5.0 (Lenny), Debian 4.0 (Etch), Debian 3.1 (Sarge) shipped it.
amateur radio PSK31 modem via soundcard