Radioacktiva 97.9 FM

Radioacktiva 97.9 FM sits in the tail of Colombia's 158 entries. The tail is the part of a directory that goes missing first, and it is the part worth keeping: the head of every country's list is the same handful of national broadcasters, and everything that makes a dial local is behind them.

No opens have been recorded against Radioacktiva 97.9 FM in the public directory. Plenty of working stations sit at zero, because the count only rises when somebody plays the stream from a client that reports back, and most listening never touches the directory at all.

Nothing else in Colombia's listing leads with alternative. The tag is self-declared, which makes it a statement of how the broadcaster positions itself rather than a classification anyone audited, and on this dial that statement is unique.

The audio comes from playerservices.streamtheworld.com, and 36 other stations in Colombia are served from the same address. That is a streaming platform carrying many broadcasters rather than a station running its own server, which is worth knowing for a practical reason: when a platform has a bad night, a whole block of Colombia's listing stops answering at once and nothing is wrong with any of the stations in it.