Digital modem program for Linux
Fldigi is a modem program which supports most of the digital modes used by ham radio operators today. You can also use the program for calibrating your sound card to WWV or doing a frequency measurement test. The program also comes with a CW decoder. fldigi is written with the help of the Fast Light Toolkit X GUI. Fldigi is a fast moving project many added features with each update. Flarq (Fast Light Automatic Repeat Request) is a file transfer application that is based on the ARQ specification developed by Paul Schmidt, K9PS. It is capable of transmitting and receiving frames of ARQ data via fldigi.