{"analysis":{"blocks":[[0.0,"keyed-tone",998.9],[20.0,"keyed-tone",998.9],[40.0,"mixed",998.9],[60.0,"morse",998.9],[80.0,"mixed",998.9],[100.0,"mixed",998.9],[120.0,"keyed-tone",998.9],[140.0,"keyed-tone",998.9],[160.0,"carrier",998.9],[180.0,"keyed-tone",998.9],[200.0,"mixed",998.9],[220.0,"mixed",998.9],[240.0,"keyed-tone",998.9],[260.0,"keyed-tone",998.9],[280.0,"keyed-tone",998.9],[300.0,"keyed-tone",998.9],[320.0,"mixed",998.9],[340.0,"mixed",998.9],[360.0,"mixed",998.9],[380.0,"mixed",998.9],[400.0,"keyed-tone",998.9],[420.0,"keyed-tone",998.9],[440.0,"mixed",998.9],[460.0,"mixed",998.9],[480.0,"mixed",998.9],[500.0,"mixed",998.9],[520.0,"mixed",998.9],[540.0,"mixed",998.9],[560.0,"mixed",998.9],[580.0,"mixed",998.9]],"content":"mixed","dur_s":600.28,"keying_depth":0.76,"keying_hz":2.2,"mix":{"carrier":0.033,"keyed-tone":0.367,"mixed":0.567,"morse":0.033},"peak":0.446,"rms":0.111799,"samplerate":11999,"summary":"mixed 57% · keyed-tone 37% · morse 3% · carrier 3% · tone 999 Hz · keying 2.20 Hz depth 0.76","tone_hz":998.9},"archived":false,"archived_why":null,"band":"LF","dur_s":600.28,"excerpt_s":null,"freq_khz":23.0,"heard_in":[],"id":"2026-10-02T0824Z-23-vlf-23000","licence":"CC BY 4.0","media":{"flac":{"bytes":11426649,"url":"/media/c5b1ca3a28aaf79c62cdace8387b9fb1f3423e1edccb28866026a79958280398.flac"},"m4a":{"bytes":3638128,"url":"/media/c5b1ca3a28aaf79c62cdace8387b9fb1f3423e1edccb28866026a79958280398.m4a"},"opus":{"bytes":2541604,"url":"/media/c5b1ca3a28aaf79c62cdace8387b9fb1f3423e1edccb28866026a79958280398.opus"}},"mode":"USB","notes":{"listening":{"marks":[],"note":"","stars":0,"tags":[]},"rig":null},"peaks":[99,100,99,99,99,98,99,99,99,99,99,99,99,99,98,99,99,99,99,99,98,98,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,98,99,99,99,99,99,99,98,98,99,99,99,99,99,99,99,99,98,98,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,98,99,98,99,99,99,99,99,99,99,99,99,98,98,99,99,99,99,99,99,99,98,99,98,98,98,99,99,99,99,99,99,98,99,99,99,99,98,99,99,99,99,99,99,99,99,99,99,99,99,98,99,98,99,99,99,99,99,99,98,99,99,99,99,99,99,98,99,98,98,99,99,99,99,99,99,99,98,99,99,99,99,99,99,99,98,98,98,98,98,99,99,99,99,99,99,98,99,99,99,99,99,99,99,98,98,98,98,98,99,99,99,99,98,98,98,98,98,98,99,99,99,98,98,98,98,98,99,99,99,99,99,99,98,99,99,99,99,99,98,98,99,99,99,98,99,99,99,99,99,99,98,98,98,98,99,99,99,99,99,99,98,99,98,99,98,99,99,99,99,98,99,99,98,99,99,98,99,99,98,98,99,98,98,99,99,99,99,99,99,98,98,99,99,99,99,98,98,98,98,98,99,99,99,99,99,99,99,99,98,98,99,99,99,99,98,98,98,98,99,98,98,98,98,99,99,98,98,98,99,99,99,99,99,99,98,99,99,99,99,99,99,99,98,98,99,99,99,99,99,99,99,99,99,99,98,98,99,99,99,99,99,98,98,99,99,99,99,99,98,99,99,98,98,98,98,99,99,98,99,99,99,98,99,99,99,98,99,99,99,99,99,99,99,99,99,99,99,99,99,98,98,98,99,99,99,99,99,99,99,98,98,98,98,99,99,99,99,99,98,99,99,99,99,99,99,99,98,98,98,99,98,98,98,99,99,99,99,98,99,99,98,99,99,99,99,98,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,98,99,99,99,99,99,99,99,99,99,98,98,99,98,99,99,99,99,99,98,99,98,98,98,98,99,99,99,99,99,99,98,98,99,99,99,98,99,98,98,98,98,98,99,99,99,99,99,98,99,98,99,99,99,99,99,98,99,98,98,98,98,98,98,98,99,98,98,98,98,99,99,99,99,99,99,98,98,98,98,99,99,99,99,99,99,98,98,99,99,99,99,99,99,99,99,98,98,99,98,98,99,99,98,99,98,99,99,99,99,99,99,99,98,99,99,98,99,99,99,99,99,98,98,99,98,98,99,99,99,99,98,98,98,98,98,99,99,98,99,99,99,99,99,98,99,99,99,99,98,98],"publish":"full","receiver":{"antenna":"Switched","grid":"IO80qr","loc":"South West England, UK","opt_out":false},"recorder":"kiwirecorder.py (jks-prv/kiwiclient v1.11)","related":["2026-10-02T0049Z-23-vlf-23000","2026-10-02T2101Z-23-vlf-23000","2026-10-03T0310Z-23-vlf-23000","2026-10-02T0818Z-14754.2-bul-14755","2026-10-02T0837Z-8888-volmet-8888-novosibirsk","2026-10-02T0809Z-17.3-vlf-17300"],"rig_item":"2026-10-02T0824Z-23-vlf-23000","sha256":"c5b1ca3a28aaf79c62cdace8387b9fb1f3423e1edccb28866026a79958280398","snr_db":35,"source_dur_s":600.28,"spectrogram":"/spectrogram/c5b1ca3a28aaf79c62cdace8387b9fb1f3423e1edccb28866026a79958280398.png","station":{"kind":"","name":"VLF submarine band 23.3-25.7 kHz (DHO38, NAA, Russia, Turkey chord)","slug":"vlf-23000"},"thumb":"/spectrogram/c5b1ca3a28aaf79c62cdace8387b9fb1f3423e1edccb28866026a79958280398-thumb.png","tier":"A","url":"/capture/2026-10-02T0824Z-23-vlf-23000/","utc":"2026-10-02T08:24:50Z"}