WSPR is a ham radio application. The name WSPR (pronounced "whisper") stands for "Weak Signal Propagation Reporter". This program implements a protocol designed for probing potential propagation paths with very low-power transmissions.
You can find it in the sunrise overlay. See https://overlays.gentoo.org/proj/sunrise/browser/reviewed/media-radio/wspr
Moved to the tree. +*wspr-2.00 (03 Apr 2011) + + 03 Apr 2011; Thomas Beierlein <tomjbe@gentoo.org> +wspr-2.00.ebuild, + +metadata.xml: + Moved from sunrise +