Mystery Signals Of The Short Wave

The Echo was one of the  more elusive signals on the short wave bands during the 1990s.

To Listen to a recording of The Echo click on the Icon below:-

  The Echo   (25Kb)

Consisting of a single bleep every four seconds,  this signal was heard on  one frequency which it occupied for a while, then would vanish, only to pop up somewhere else a month or two later.

Was never heard on more than one frequency at any one time, so thought to have been a single transmitter.

As there have been no reports of this signal 1999, it appears to have permanently closed.