{"analysis":{"blocks":[[0.0,"keyed-tone",471.6],[20.0,"keyed-tone",580.0],[40.0,"keyed-tone",577.1],[60.0,"keyed-tone",580.0],[80.0,"keyed-tone",577.1],[100.0,"keyed-tone",577.1]],"content":"keyed-tone","dur_s":120.33,"keying_depth":0.94,"keying_hz":0.3,"mix":{"keyed-tone":1.0},"peak":0.5317,"rms":0.103848,"samplerate":11999,"summary":"keyed-tone 100% · tone 577 Hz · keying 0.30 Hz depth 0.94","tone_hz":577.1},"archived":false,"archived_why":null,"band":"4 MHz","dur_s":120.33,"excerpt_s":null,"freq_khz":4625.0,"heard_in":[],"id":"2026-09-18T2010Z-4625-uvb76-4625","licence":"CC BY 4.0","media":{"flac":{"bytes":2234258,"url":"/media/8053683a43b8e5e3201288705ca297c681d1c4ec8a1bf9258c118a9bad95a17d.flac"},"m4a":{"bytes":730586,"url":"/media/8053683a43b8e5e3201288705ca297c681d1c4ec8a1bf9258c118a9bad95a17d.m4a"},"opus":{"bytes":517762,"url":"/media/8053683a43b8e5e3201288705ca297c681d1c4ec8a1bf9258c118a9bad95a17d.opus"}},"mode":"USB","notes":{"listening":{"marks":[],"note":"","stars":0,"tags":[]},"rig":"Strong tonal capture (flatness 0.036) but NOT confirmed as UVB-76. Content is a steady tone 578.5 Hz above the tuned USB frequency, continuous, with shallow modulation (depth 0.28) at ~0.30 Hz. The Buzzer keys hard on/off roughly 25 times a minute; the envelope here never falls below 0.32 of peak, so this reads as a carrier with QSB fading rather than the keyed buzz. Either UVB-76 heard weakly through deep fading, or an adjacent carrier. Excellent Tier-A carrier/QSB texture regardless; do not label it as the Buzzer without a clean A/B against a live stream."},"peaks":[93,49,56,66,76,78,83,85,87,91,91,81,82,87,89,90,92,91,91,95,95,97,96,97,96,96,97,95,93,93,94,93,88,96,96,96,92,95,96,97,96,96,96,97,93,90,91,88,90,91,94,92,92,92,96,97,96,96,96,95,94,88,89,90,92,94,93,93,93,93,91,97,98,99,99,99,97,96,85,86,88,92,95,94,90,91,91,92,96,96,96,93,95,95,92,88,93,93,92,95,91,94,93,92,94,97,98,98,98,99,98,93,86,90,92,89,91,92,93,94,93,95,95,96,94,97,98,98,93,90,90,94,91,95,96,93,92,91,96,97,97,93,94,96,94,91,92,91,89,90,93,91,93,91,93,97,98,97,97,97,97,96,92,91,93,94,94,94,93,93,91,93,96,97,95,95,95,96,96,94,92,93,91,90,93,91,90,93,94,97,96,96,97,98,97,96,85,91,91,89,87,89,90,93,94,94,97,97,96,98,96,95,95,94,94,94,91,90,92,93,94,95,95,99,98,96,94,96,96,93,86,89,90,94,94,94,90,91,88,94,97,97,98,97,99,98,93,89,92,91,93,95,95,95,94,94,96,97,97,98,97,95,95,90,91,94,89,91,92,92,90,93,94,97,97,97,97,96,96,97,86,88,89,93,89,86,90,93,89,90,97,96,96,96,98,98,96,87,85,87,87,92,93,90,94,95,93,100,99,97,97,96,97,94,89,91,88,90,91,93,94,93,93,94,98,97,97,98,98,99,94,81,85,86,86,91,90,92,93,96,95,97,96,96,97,97,96,89,88,92,89,92,94,92,93,92,93,96,99,98,99,98,97,97,91,88,89,93,93,91,89,95,91,93,95,97,96,97,97,97,96,87,85,89,90,95,90,91,94,95,95,96,96,98,98,98,98,96,84,86,91,92,87,88,90,90,95,95,97,98,97,97,97,94,93,92,89,90,90,92,95,93,93,96,94,97,97,97,97,98,98,93,90,92,93,91,89,93,95,95,96,93,96,96,96,97,95,96,91,89,86,85,84,87,90,93,94,94,96,97,96,96,98,97,94,91,92,90,90,89,89,90,92,91,94,96,98,99,99,97,98,99,87,87,89,90,90,94,93,89,89,90,98,99,97,97,97,96,96,86,89,91,92,93,94,94,93,91,91,98,97,96,96,95,95,93,95,90,88,83,87,89,92,92,92,95,97,95,95,96,95,96,93,93,86,88,88,89,90,93,94,91,95,97,97,98,98,99,98,94,90,88,89,91,88,90,93,96,93,97,99,98,97,96,96,97,93,89,93,91,91,89,87,82,84,85,95,97,96,97,97,97,98,92,90,91,90,91,92,94,93,95,92,96,96,97,97,95,95,96],"publish":"full","receiver":{"antenna":"vertical","grid":"JN39GG","loc":"Brettnach F57320","opt_out":false},"recorder":"kiwirecorder.py (jks-prv/kiwiclient v1.11)","related":["2026-09-18T2051Z-4625-uvb76-4625","2026-09-18T2211Z-4625-uvb76-4625","2026-09-19T0127Z-4625-uvb76-4625","2026-09-18T2006Z-10000-wwv-10000","2026-09-18T2051Z-7850-chu-7850","2026-09-18T2052Z-7880-fax-7880"],"rig_item":"2026-09-18T2010Z-4625-uvb76-4625","sha256":"8053683a43b8e5e3201288705ca297c681d1c4ec8a1bf9258c118a9bad95a17d","snr_db":39,"source_dur_s":120.33,"spectrogram":"/spectrogram/8053683a43b8e5e3201288705ca297c681d1c4ec8a1bf9258c118a9bad95a17d.png","station":{"kind":"marker","name":"UVB-76 \"The Buzzer\"","slug":"uvb76"},"thumb":"/spectrogram/8053683a43b8e5e3201288705ca297c681d1c4ec8a1bf9258c118a9bad95a17d-thumb.png","tier":"B","url":"/capture/2026-09-18T2010Z-4625-uvb76-4625/","utc":"2026-09-18T20:10:44Z"}