RTLSDR-Scanner : cross platform Python frequency scanning GUI for the OsmoSDR rtl-sdr library ( http://eartoearoak.com/software/rtlsdr-scanner )
cutesdr : Qt based Software Defined Radio Interface ( http://cutesdr.sourceforge.net/ )
pyrtlsdl : Python wrapper for librtlsdr (a driver for Realtek RTL2832U based SDR's) ( https://github.com/roger-/pyrtlsdr )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a xmw
For Paludis use this rsync : rsync://gentoo.zugaina.org/xmw-portage
If you have a problem : ycarus(-at-)zugaina.org