CLE Information

Co-ordinated Listening Events (or 'CLEs') take place several times a year and provide opportunities for listeners of all ranges of experience to practice our hobby and learn more about it.
To learn more about the NDB List, or to join (it's free!), visit

CLE 291

Dates: Starts at midday on Friday 21 April and ends at midday on Monday 24 April LOCAL TIME at the receiver.
Scope: Listening for NDBs in the ranges 240 - 259.9 and 420 - 439.9 kHz

   ( If you wish, for this Event you can use only one Internet-based remote receiver to log signals. 


Links for Each Region