{"analysis":{"blocks":[[0.0,"keyed-tone",500.9],[20.0,"carrier",500.9],[40.0,"keyed-tone",500.9],[60.0,"keyed-tone",500.9],[80.0,"keyed-tone",500.9],[100.0,"carrier",500.9],[120.0,"keyed-tone",500.9],[140.0,"mixed",1584.8],[160.0,"mixed",1599.5],[180.0,"mixed",1599.5],[200.0,"mixed",1599.5],[220.0,"mixed",1599.5],[240.0,"mixed",1599.5],[260.0,"mixed",1599.5],[280.0,"mixed",1584.8],[300.0,"mixed",1599.5],[320.0,"mixed",1599.5],[340.0,"mixed",1599.5],[360.0,"mixed",1599.5],[380.0,"mixed",1584.8],[400.0,"mixed",1599.5],[420.0,"mixed",1599.5]],"content":"mixed","dur_s":424.31,"keying_depth":0.66,"keying_hz":1.9,"mix":{"carrier":0.091,"keyed-tone":0.227,"mixed":0.682},"peak":0.4854,"rms":0.221764,"samplerate":11999,"summary":"mixed 68% · keyed-tone 23% · carrier 9% · tone 501 Hz · keying 1.90 Hz depth 0.66","tone_hz":500.9},"archived":false,"archived_why":null,"band":"MF","dur_s":424.31,"excerpt_s":null,"freq_khz":488.5,"heard_in":[],"id":"2026-09-26T2147Z-488.5-navtex-490","licence":"CC BY 4.0","media":{"flac":{"bytes":7934352,"url":"/media/b4f95ebed2e19eb3cbfcefa0b395f4d3e5d57958032e2befd659f0c744d9b9ef.flac"},"m4a":{"bytes":2578611,"url":"/media/b4f95ebed2e19eb3cbfcefa0b395f4d3e5d57958032e2befd659f0c744d9b9ef.m4a"},"opus":{"bytes":1851119,"url":"/media/b4f95ebed2e19eb3cbfcefa0b395f4d3e5d57958032e2befd659f0c744d9b9ef.opus"}},"mode":"USB","notes":{"listening":{"marks":[],"note":"","stars":0,"tags":[]},"rig":null},"peaks":[84,84,83,84,83,83,83,83,83,82,83,83,82,83,82,83,83,83,82,83,82,84,81,82,83,82,83,83,84,83,83,83,82,82,82,81,83,83,83,83,84,83,83,84,82,82,83,83,83,83,83,83,83,83,82,83,82,83,83,82,81,82,83,83,84,83,84,84,84,84,84,83,83,82,81,83,83,83,83,84,84,84,85,84,84,85,82,80,80,79,81,82,82,82,82,83,84,83,82,85,84,84,84,83,81,82,82,83,83,83,83,83,81,82,82,82,83,83,82,83,82,83,83,84,84,83,83,83,83,81,82,82,83,83,83,82,81,83,83,83,83,83,84,84,84,84,84,83,81,80,80,82,82,80,82,81,84,82,82,82,84,81,82,83,83,83,83,82,81,83,84,83,83,82,83,83,84,83,84,84,84,84,83,81,82,83,83,83,83,84,85,85,85,85,84,83,83,85,83,87,98,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,100,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,98,99,98,99,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,99,98,99,98,98,98,99,99,99,99,99,98,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,98,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,98,98,99,99,98,99,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,97,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,97,97,98,98,98,98,98,98,98,98,98,98,98,97,97,97,97,97,98,98,98,97,97,97,97,97,98,97,97,97,97,97,97,97,97,97,97,97,97,98,97,98,97,97,96,97,97,97,97,97,97,97,97,97,97,97,97,97,97,97,96,97,97,97,96,96,96,96,96,96,97,97,97,97,96,95,96,96,96,95,95,95,95,96,96,96,96,96,96,96,97,96,97,96,97,97,96,96,97,97,97,97,97,98,98,98,98,98,97,98,98,98,97,98,98,98,98,98,98,98,98,98,98,98,98,98,96,96,97,97,97,97,97,97,97,97,97,97,97,97,97,98,98,98,98,97,97,97,97],"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":["2026-09-26T2118Z-516.5-navtex-518","2026-09-26T2319Z-516.5-navtex-518","2026-09-26T1838Z-516.5-navtex-518","2026-09-26T2140Z-9287-m12-frisat-2100","2026-09-26T2155Z-10151.5-fsk-nau-10153","2026-09-26T2134Z-8423.2-cw-svo-8424"],"rig_item":"2026-09-26T2147Z-488.5-navtex-490","sha256":"b4f95ebed2e19eb3cbfcefa0b395f4d3e5d57958032e2befd659f0c744d9b9ef","snr_db":45,"source_dur_s":424.31,"spectrogram":"/spectrogram/b4f95ebed2e19eb3cbfcefa0b395f4d3e5d57958032e2befd659f0c744d9b9ef.png","station":{"kind":"navigation","name":"NAVTEX","slug":"navtex"},"thumb":"/spectrogram/b4f95ebed2e19eb3cbfcefa0b395f4d3e5d57958032e2befd659f0c744d9b9ef-thumb.png","tier":"A","url":"/capture/2026-09-26T2147Z-488.5-navtex-490/","utc":"2026-09-26T21:47:41Z"}