Emergency Action Messages broadcasted through the High Frequency Global Communication System.

https://eam.watch/

http://websdr.ewi.utwente.nl:8901/ on 11175 USB kHz

20 or so EAM messages yesterday - most starting with 5T. The 42char messages start with CI and the 164chars are NB. Still listening for a skyking this year. Does anyone have the old audio link to the SR-71 mentioning skybird?

tanks.