The following list shows software that has worked for various people in their HAB activities. It is therefore a reasonable starting point in the search for suitable software. However, the list is not a recommendation per se. Therefore, please use at your discretion.
dl-fldigi – an adapted version of the FLdigi program for tracking high altitude balloons. It allows decoding of radio signal (e.g. RTTY) and uploading to Habitat server, where trackable entities (e.g. balloons) show up on a dynamic map.
Apps for Android and iOS.
Full instructions for SDR software running on Windows are available here .
Gqrx SDR receiver – Gqrx is a software defined radio receiver for Funcube Dongle (FCD), RTL2832U-based DVB-T devices (RTL-SDR), Universal Software Radio Peripherals (USRP) and Osmo SDR devices. It is powered by GNU Radio and the Qt GUI toolkit.