[riffic]

it's a shame the author doesn't seem to be interested in opening up their source code:

http://www.websdr.org/faq.html

edit: previous HN discussion regarding PA3FWM's closed source stance:

https://news.ycombinator.com/item?id=18571139

[bjakubski]

For a very similar, but open source project have a look at https://github.com/jketterl/openwebrx