This station uses the identification letters 'SAL' - as well as the the station 'Salon de Provence'. Both transmit on different frequencies (Sainte Leocadie: SAL-418, Salon de Provence: SAL-334), and the locations are about 280 km away from each other. But it is a proof, that these NDB identification letters ('callsign') are not necessarily unique within one country.
this signal could be received
during daytime on Menorca island (rb, 2013)
no pictures of QSLs or other info available
------------------------------------------------------------
Callsigns:
SAL
Frequencies Morse Telegraphy:
418