RSK 5Z4B NCDXF/IARU International Beacon Project
The Radio Society of Kenya is a part of the NCDXF/IARU International Beacon Project that is “constructed and operates a worldwide network of high-frequency radio beacons” used to “help both amateur and commercial high-frequency radio users assess the current condition of the ionosphere”, This is entirely a volunteer effort, as the “entire system is designed, build and operated by volunteers”.
The RSK beacon is 5Z4B, located at -1.2686671406805454, 36.80950298912746
Learn more about Amateur Radio Propagation Beacons from this Wikipedia link.
Amongst others, 5Z4B has been graciously supported by KF7E.