Ralph Martin Fischer
Altmühlweg 9
4810 Gmunden
Austria
Callsign OE5SOS. Not a business, no commercial intent — this site accompanies a private amateur radio project.
About the software
Longpath is free software under the GNU General Public License v3. It is a fork of NereusSDR (J. J. Boyd, KG4VCF), itself a C++20/Qt6 port of Thetis. The DSP is WDSP by Warren Pratt (NR0V). Full provenance is documented in the source tree under docs/attribution/.
Liability
The software is provided without any warranty. Operating a transmitter is the sole responsibility of the licensed radio amateur.