Any chance, that you were hearing it from 11810 kHz?
Best regards,
Mauno
Maurits Van Driessche kirjoitti 25.7.2022 klo 9:10:
11815khz  05:50utc 25-07  BBC World Service with news in English 
,heard first time no info for location .Strong good audio ,over Brazil 
Central S. off at 06:00utc

Maurits Van Driessche   Icom IC-71E  Deltaloop antenna
ON3MK    73,
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