BRAZIL/TURKEY 15190.096 kHz Measured very tiny signal under threshold only on remote Florida US state SDR unit at 13.10 UT on Dec 19.
But in Florida and various remote SDR servers in Europe heard stronger co-channel – an unwanted INTERMODULATION signal on 15190.043 kHz S=6-7 in Turkish language, not Portuguese from TRT Emirler site in Turkey.
At 12.30-13.25 UT on Dec 19, intermodulation mixture of both services
15270.027 kHz TRT German, S=9+35dB strength
15350.011 kHz TRT Turkish, S=9+35dB strength
difference distance apart of 79.984 kHz at Emirler Turkey center location.
Also symmetrically on upper sideband on 15429.995 kHz S=6-7, and hit co-channel AWR Trincomalee Ceylon on 15430.004 kHz at 13.04 UT.
[selected SDR options, span 12.5 kHz RBW 15.3 Hertz] (wb df5sx, wwdxc BC-DX TopNews Dec 19)