NDB Hierro :

 

for whatever reason: in 2004 they identified as 'HR' ...
...and in 2006 as 'HIE' on 376 kHz (both recordings 'rb' from Tenerife Island)

 

a PPC from the collection of Patrick Robic, verifying 'HIE' in 2005

 

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Callsigns:
HIE
HR

 

Frequencies Morse Telegraphy:
376