Rádio Correio do Vale Itaporanga PB BRA 1590

If you hear a heterodyne on 1590 this may very well be from Correio do Vale.  They have been low for at least 2 years, usually around 1589,927 kHz. My report was confirmed via the oficial Facebook site of Rádio Correio. He mentioned that they have also received reports from Norway and Finland.