{"analysis":{"blocks":[[0.0,"keyed-tone",562.5],[20.0,"keyed-tone",562.5],[40.0,"keyed-tone",562.5],[60.0,"keyed-tone",562.5],[80.0,"keyed-tone",562.5],[100.0,"keyed-tone",562.5],[120.0,"keyed-tone",562.5],[140.0,"keyed-tone",562.5],[160.0,"keyed-tone",562.5],[180.0,"keyed-tone",562.5],[200.0,"keyed-tone",562.5],[220.0,"keyed-tone",562.5]],"content":"keyed-tone","dur_s":240.32,"keying_depth":0.97,"keying_hz":0.3,"mix":{"keyed-tone":1.0},"peak":0.5299,"rms":0.100536,"samplerate":11999,"summary":"keyed-tone 100% · tone 562 Hz · keying 0.30 Hz depth 0.97","tone_hz":562.5},"archived":false,"archived_why":null,"band":"4 MHz","dur_s":240.32,"excerpt_s":null,"freq_khz":4625.0,"heard_in":[],"id":"2026-09-18T2051Z-4625-uvb76-4625","licence":"CC BY 4.0","media":{"flac":{"bytes":4300887,"url":"/media/ebc655bab25aeb130f00b531159688c8773e4262f6f14c1f5a4f1cbf3f610ba1.flac"},"m4a":{"bytes":1513957,"url":"/media/ebc655bab25aeb130f00b531159688c8773e4262f6f14c1f5a4f1cbf3f610ba1.m4a"},"opus":{"bytes":1071679,"url":"/media/ebc655bab25aeb130f00b531159688c8773e4262f6f14c1f5a4f1cbf3f610ba1.opus"}},"mode":"USB","notes":{"listening":{"marks":[],"note":"","stars":0,"tags":[]},"rig":"Marker hunt 2026-09-18 ~21:00Z. Night path, 4625 USB, expect keyed buzz ~25/min. Sources: https://priyom.org/military-stations/russia/the-buzzer , https://en.wikipedia.org/wiki/UVB-76"},"peaks":[92,91,88,90,94,95,92,82,82,87,88,85,93,94,94,92,72,79,85,88,92,95,93,93,74,81,78,81,85,94,93,93,88,79,80,89,85,91,95,94,95,74,79,84,80,85,96,93,91,88,87,85,84,91,91,93,96,93,70,77,82,85,86,94,93,90,86,75,81,85,86,94,95,95,91,78,80,86,89,87,92,90,92,82,76,80,81,85,95,96,95,89,80,79,81,87,91,94,93,94,79,80,85,83,86,95,95,92,85,75,82,83,82,89,93,95,94,80,77,76,84,86,93,94,95,88,76,82,84,88,91,94,94,92,75,83,83,80,88,95,94,91,83,79,86,78,83,94,94,94,89,71,78,81,84,89,94,94,94,80,81,80,81,84,94,95,94,89,80,80,84,87,91,95,95,93,69,77,80,84,86,94,94,95,87,85,89,85,86,90,95,93,92,75,77,83,85,87,95,92,94,88,79,82,96,100,99,87,84,88,74,82,83,86,89,94,95,96,84,80,80,84,87,93,95,92,90,71,82,83,87,91,93,93,94,85,77,79,84,85,93,92,90,86,72,83,84,84,92,96,94,93,75,81,83,90,82,93,94,94,89,73,82,85,82,93,93,95,92,82,75,81,80,85,96,96,95,88,80,81,85,87,93,94,94,91,76,85,84,89,90,94,92,95,89,83,82,88,83,90,94,94,91,73,78,84,88,89,93,90,92,86,82,77,85,84,95,96,95,90,79,84,85,86,91,94,96,94,70,80,86,82,84,94,95,97,90,78,86,86,84,90,96,94,91,78,87,88,78,82,94,92,91,84,79,82,83,87,92,95,94,94,81,79,86,86,88,96,94,95,84,79,84,89,85,94,96,94,90,78,82,88,87,91,96,95,95,84,84,82,86,85,95,94,94,89,83,83,87,88,90,94,93,90,73,80,86,84,87,93,92,93,87,78,85,88,83,91,93,94,92,75,79,83,87,87,94,94,94,88,79,86,87,86,94,95,94,92,83,85,91,87,86,93,95,94,84,85,85,80,82,95,94,94,92,81,80,82,85,92,94,95,95,80,82,83,84,79,94,94,92,88,80,79,85,86,92,93,92,92,78,81,86,84,87,95,94,93,87,79,88,86,83,90,95,95,92,77,81,83,88,90,95,93,95,84,75,82,85,84,94,96,95,93,77,86,82,84,89,95,96,96,81,87,73,81,85,95,96,96,88,78,84,85,82,91,94,90,94,80,78,81,85,87,97,95,97,89,83,83,84,84,92,94,93,93,78,80,81,87,89,95,94,91,85,77,80,86,89,93,94,94,88,72,83,86,88,84,96,94,94,84,78,83,86,81,93,95,94,90,79,79,85,84,89,97,95,92,79,79],"publish":"full","receiver":{"antenna":"LW 40m","grid":"JN79GO","loc":"Sedlcany, Czech Republic","opt_out":false},"recorder":"kiwirecorder.py (jks-prv/kiwiclient v1.11)","related":["2026-09-18T2010Z-4625-uvb76-4625","2026-09-18T2211Z-4625-uvb76-4625","2026-09-19T0127Z-4625-uvb76-4625","2026-09-18T2051Z-7850-chu-7850","2026-09-18T2052Z-7880-fax-7880","2026-09-18T2056Z-5505-volmet-5505"],"rig_item":"2026-09-18T2051Z-4625-uvb76-4625","sha256":"ebc655bab25aeb130f00b531159688c8773e4262f6f14c1f5a4f1cbf3f610ba1","snr_db":38,"source_dur_s":240.32,"spectrogram":"/spectrogram/ebc655bab25aeb130f00b531159688c8773e4262f6f14c1f5a4f1cbf3f610ba1.png","station":{"kind":"marker","name":"UVB-76 \"The Buzzer\"","slug":"uvb76"},"thumb":"/spectrogram/ebc655bab25aeb130f00b531159688c8773e4262f6f14c1f5a4f1cbf3f610ba1-thumb.png","tier":"B","url":"/capture/2026-09-18T2051Z-4625-uvb76-4625/","utc":"2026-09-18T20:51:52Z"}