{"analysis":{"blocks":[[0.0,"mixed",1599.5],[20.0,"mixed",1599.5],[40.0,"mixed",1584.8],[60.0,"mixed",1599.5],[80.0,"mixed",1599.5],[100.0,"mixed",1599.5],[120.0,"mixed",1599.5],[140.0,"mixed",1584.8],[160.0,"mixed",1599.5],[180.0,"mixed",1400.3],[200.0,"mixed",1400.3],[220.0,"mixed",1599.5],[240.0,"mixed",1599.5],[260.0,"mixed",1599.5],[280.0,"mixed",1400.3],[300.0,"mixed",1599.5],[320.0,"mixed",1599.5],[340.0,"keyed-tone",1584.8],[360.0,"keyed-tone",500.9],[380.0,"keyed-tone",500.9],[400.0,"keyed-tone",500.9],[420.0,"keyed-tone",500.9],[440.0,"keyed-tone",500.9],[460.0,"keyed-tone",500.9],[480.0,"keyed-tone",500.9],[500.0,"keyed-tone",500.9],[520.0,"keyed-tone",500.9],[540.0,"keyed-tone",500.9],[560.0,"carrier",500.9],[580.0,"carrier",500.9]],"content":"mixed","dur_s":600.28,"keying_depth":0.65,"keying_hz":0.2,"mix":{"carrier":0.067,"keyed-tone":0.367,"mixed":0.567},"peak":0.4833,"rms":0.195668,"samplerate":11999,"summary":"mixed 57% · keyed-tone 37% · carrier 7% · tone 501 Hz · keying 0.20 Hz depth 0.65","tone_hz":500.9},"archived":false,"archived_why":null,"band":"MF","dur_s":600.28,"excerpt_s":null,"freq_khz":488.5,"heard_in":[],"id":"2026-09-22T0150Z-488.5-navtex-490","licence":"CC BY 4.0","media":{"flac":{"bytes":11117775,"url":"/media/ab782501013e5232471a2fa2a4bc21293528bb2dbd163eca13b54fde7109265a.flac"},"m4a":{"bytes":3666654,"url":"/media/ab782501013e5232471a2fa2a4bc21293528bb2dbd163eca13b54fde7109265a.m4a"},"opus":{"bytes":2639078,"url":"/media/ab782501013e5232471a2fa2a4bc21293528bb2dbd163eca13b54fde7109265a.opus"}},"mode":"USB","notes":{"listening":{"marks":[],"note":"","stars":0,"tags":[]},"rig":null},"peaks":[98,98,98,98,98,98,97,97,97,97,97,97,97,97,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,99,99,98,98,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,98,98,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,100,99,98,99,99,99,99,99,99,99,99,99,98,99,99,99,99,98,99,99,99,99,99,99,99,99,99,99,99,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,97,97,96,96,96,97,97,97,97,96,96,95,95,95,95,94,94,94,94,95,94,94,94,93,94,94,94,93,93,93,93,93,93,93,93,94,94,94,94,95,95,95,95,96,96,96,97,96,96,96,96,96,96,96,96,95,95,95,95,96,97,97,97,97,97,96,97,98,97,97,97,97,97,96,96,95,93,94,94,94,94,95,95,95,95,95,95,95,95,95,96,97,97,97,96,97,97,97,97,97,97,96,96,96,96,95,94,95,95,95,96,96,96,96,95,95,95,95,95,95,96,93,95,95,96,95,96,96,96,96,96,97,97,97,97,98,97,98,98,98,99,99,99,98,99,99,99,99,98,99,99,98,98,98,98,97,98,97,97,96,97,98,97,97,98,98,99,99,98,98,91,77,81,78,79,83,80,82,85,84,83,83,79,83,85,86,81,83,82,84,84,85,83,85,82,79,80,79,81,82,84,84,84,82,83,84,86,86,85,86,82,82,83,81,84,87,85,84,82,81,82,84,85,84,86,84,79,81,82,84,84,82,85,83,81,82,83,83,81,84,84,81,82,80,82,81,80,80,83,83,85,85,78,76,79,82,83,84,84,83,82,77,78,81,80,82,84,83,83,83,80,80,83,84,84,82,82,78,81,81,81,83,84,81,83,84,83,81,81,82,82,82,84,84,81,79,81,84,84,81,83,80,81,83,84,81,82,82,81,82,83,83,84,80,79,82,79,81,81,84,81,82,83,80,79,79,82,84,85,85,84,83,83,84,86,86,85,84,81,84,84,85,84,83,81,82,82,83,81,83,83,81,80,83,83,80,81,81,82,84,82,83,81,83,83,81,76,79,82,83,81,83,84,83,83,84,84,84,81,83,84,81,76,78,79,80,81,83,81,79,81,83,84,82,80,82,80,82,82,81,83,82,82,83,81,83,82,81,83,84,83,84,83,82,80,81,82,83,80,83,83,82,82,82,82,82,84],"publish":"full","receiver":{"antenna":"Active Loop antenna PAHGOR (serial nr: 001) built by ► PA0EBC ◀ 👍","grid":"JO32fx","loc":"Assen | Netherlands","opt_out":false},"recorder":"kiwirecorder.py (jks-prv/kiwiclient v1.11)","related":["2026-09-22T0117Z-516.5-navtex-518","2026-09-22T0329Z-516.5-navtex-518","2026-09-21T2257Z-516.5-navtex-518","2026-09-22T0145Z-15000-wwvh-15000","2026-09-22T0201Z-10000-wwv-10000-na","2026-09-22T0138Z-6494.5-rtty-cfh-6496"],"rig_item":"2026-09-22T0150Z-488.5-navtex-490","sha256":"ab782501013e5232471a2fa2a4bc21293528bb2dbd163eca13b54fde7109265a","snr_db":43,"source_dur_s":600.28,"spectrogram":"/spectrogram/ab782501013e5232471a2fa2a4bc21293528bb2dbd163eca13b54fde7109265a.png","station":{"kind":"navigation","name":"NAVTEX","slug":"navtex"},"thumb":"/spectrogram/ab782501013e5232471a2fa2a4bc21293528bb2dbd163eca13b54fde7109265a-thumb.png","tier":"A","url":"/capture/2026-09-22T0150Z-488.5-navtex-490/","utc":"2026-09-22T01:50:28Z"}