Today checked again the TWN  SOH fq list, and came across of
9919.977 PHL  FEBC Vietnamese mountian folk languages sce
        from Iba bcast center site.
        Depending of the day of the week scheduled some
        Vietnamese domestic languages
        like Rade, Jarai, Hre, Bahnar and Koho. Scheduled 12.00-13.30 UT.
        S=9 sidelobe signal in remote SDR rx at Hiroshima and Tokyo Japan.
        At 12.12 UT on Jan 28.
        11 kHz wide  - and
9919.063 fundamental fq on lower sideband.
        VTN  Jamming with sirene howling buoy audio sound from
        Vietnam at lower sideband noise signal level,
        visible are 8 x 100 Hertz distance away spur peak strings
        visible on either sideband.
[selected SDR options, span 12.5 kHz RBW 15.3 Hertz]
(wb  df5sx, wwdxc BC-DX TopNews Jan 28)