{"captures":["2026-10-06T1556Z-23-vlf-23000","2026-10-06T0959Z-23-vlf-23000","2026-10-06T0212Z-23-vlf-23000","2026-10-05T1910Z-23-vlf-23000","2026-10-04T1832Z-23-vlf-23000","2026-10-03T1509Z-23-vlf-23000","2026-10-03T0832Z-23-vlf-23000","2026-10-03T0310Z-23-vlf-23000","2026-10-02T2101Z-23-vlf-23000","2026-10-02T0824Z-23-vlf-23000","2026-10-02T0049Z-23-vlf-23000","2026-09-27T0840Z-23-vlf-23000"],"freqs_khz":[23.0],"kind":"","name":"VLF submarine band 23.3-25.7 kHz (DHO38, NAA, Russia, Turkey chord)","slug":"vlf-23000","tier":"A"}