{"captures":["2026-10-03T0458Z-18451-xpb1-0500","2026-09-26T0458Z-18451-xpb1-0500","2026-09-24T0458Z-18451-xpb1-0500","2026-09-23T0459Z-18451-xpb1-0500","2026-09-22T0459Z-18451-xpb1-0500","2026-09-21T0457Z-18451-xpb1-0500"],"freqs_khz":[18451.0],"kind":"","name":"XPB1 polytone ladder, 05:00 step","slug":"xpb1-0500","tier":"B"}