{"analysis":{"blocks":[[0.0,"keyed-tone",4001.6],[20.0,"noise",26.4],[40.0,"noise",26.4]],"content":"keyed-tone","dur_s":60.25,"keying_depth":0.98,"keying_hz":0.55,"mix":{"keyed-tone":0.333,"noise":0.667},"peak":0.4408,"rms":0.0514,"samplerate":11999,"summary":"noise 67% · keyed-tone 33% · tone 4002 Hz · keying 0.55 Hz depth 0.98","tone_hz":4001.6},"archived":false,"archived_why":null,"band":"10 MHz","dur_s":60.25,"excerpt_s":null,"freq_khz":10000.0,"heard_in":[],"id":"2026-09-18T2006Z-10000-wwv-10000","licence":"CC BY 4.0","media":{"flac":{"bytes":1134415,"url":"/media/f5d52a5b2825f8d35e094ac04423d1e0c942e210d4cb03365b8308abc16d5bf7.flac"},"m4a":{"bytes":368166,"url":"/media/f5d52a5b2825f8d35e094ac04423d1e0c942e210d4cb03365b8308abc16d5bf7.m4a"},"opus":{"bytes":234317,"url":"/media/f5d52a5b2825f8d35e094ac04423d1e0c942e210d4cb03365b8308abc16d5bf7.opus"}},"mode":"AM","notes":{"listening":{"marks":[],"note":"","stars":0,"tags":[]},"rig":"Target not heard: spectrum is flat broadband noise with no WWV tone (no 500/600/1000 Hz carrier). The 10 MHz path from western France to Colorado was not open at 20:06 UTC. Kept as Tier-A atmospherics, which is usable material, but this is NOT a time-signal capture."},"peaks":[93,85,84,88,89,89,90,91,94,94,93,92,92,90,90,90,87,86,82,77,74,80,84,86,87,88,85,86,92,95,93,92,90,89,87,88,85,85,83,83,87,88,93,96,100,99,95,94,97,96,95,95,94,93,88,84,81,81,84,88,87,87,86,88,88,88,87,85,82,82,82,75,77,74,79,79,81,82,85,86,86,86,86,83,83,80,75,71,91,64,68,71,74,74,75,73,73,81,85,84,83,81,75,89,89,87,87,87,88,87,86,85,82,84,85,84,88,88,89,84,87,88,89,87,85,86,84,83,87,88,88,87,83,82,80,81,83,82,85,87,83,86,83,85,89,91,85,85,83,77,82,84,84,85,82,83,84,82,86,86,86,86,89,86,90,86,91,85,83,84,82,84,84,86,85,85,82,92,92,91,85,84,82,81,85,81,82,84,90,89,87,90,89,86,81,80,80,79,89,90,91,85,81,78,79,79,77,80,85,80,81,82,89,85,84,83,83,83,86,83,82,83,84,83,86,91,88,90,87,91,91,89,88,84,77,77,87,88,89,85,88,84,86,79,83,86,81,84,89,91,89,87,87,87,83,85,86,87,89,91,91,90,88,82,85,89,87,89,88,86,85,85,84,82,87,89,87,85,85,88,91,89,84,88,82,85,86,89,91,90,87,85,82,87,91,89,90,83,85,79,83,83,79,84,81,76,77,86,84,86,82,83,81,85,83,87,82,86,85,85,80,84,86,90,87,89,87,91,90,88,91,89,85,86,84,87,89,90,88,83,86,88,88,83,84,87,83,86,85,90,90,88,90,87,89,83,81,83,81,84,86,84,84,84,78,77,78,79,78,80,78,87,81,82,91,90,86,87,84,84,86,85,87,81,79,75,73,85,82,79,82,83,87,83,76,79,73,82,78,78,77,86,86,84,85,84,82,88,82,90,87,83,85,88,89,89,90,90,86,82,85,87,81,81,79,81,81,85,78,86,89,84,86,81,81,92,81,83,84,82,80,80,77,79,78,78,78,81,88,91,80,83,82,80,86,87,85,88,87,85,84,86,84,88,85,84,85,89,92,91,90,88,87,89,88,85,85,83,83,85,82,87,87,86,81,84,78,81,82,79,83,80,79,79,76,77,80,82,78,79,82,89,91,89,86,89,82,85,78,75,78,82,74,77,79,84,80,86,83,85,82,82,81,80,88,90,91,90,85,87,88,79,77,78,84,87,90,91,87,89,83,83,80,83,79,78,83,86,81,84,83,86,88,87,84,86,91,90,86,89,89,89,90,91,85,84,81,84,78,76,77,83,83,81,79,76,76,85,81,87,82,82,83,87,85,84,80,88,82,87,86,83,84,82,79,78,87,87,85,83],"publish":"full","receiver":{"antenna":"Vertical pylon isolated 11 meters (ou Mini-Whip dual FET)","grid":"JN04ku","loc":"TREMOLAT (24), FRANCE","opt_out":false},"recorder":"kiwirecorder.py (jks-prv/kiwiclient v1.11)","related":["2026-09-18T2109Z-10000-wwv-10000","2026-09-18T2140Z-10000-wwv-10000-na","2026-09-19T0020Z-5000-wwv-5000","2026-09-18T2010Z-4625-uvb76-4625","2026-09-18T2051Z-7850-chu-7850","2026-09-18T2051Z-4625-uvb76-4625"],"rig_item":"2026-09-18T2006Z-10000-wwv-10000","sha256":"f5d52a5b2825f8d35e094ac04423d1e0c942e210d4cb03365b8308abc16d5bf7","snr_db":41,"source_dur_s":60.25,"spectrogram":"/spectrogram/f5d52a5b2825f8d35e094ac04423d1e0c942e210d4cb03365b8308abc16d5bf7.png","station":{"kind":"time","name":"WWV time signal","slug":"wwv"},"thumb":"/spectrogram/f5d52a5b2825f8d35e094ac04423d1e0c942e210d4cb03365b8308abc16d5bf7-thumb.png","tier":"A","url":"/capture/2026-09-18T2006Z-10000-wwv-10000/","utc":"2026-09-18T20:06:01Z"}