{"description":"New shortwave captures, with provenance.","feed_url":"https://nilheard.com/feed.json","home_page_url":"https://nilheard.com/","items":[{"content_text":"Reception Conditions Were Poor, EP by NIL HEARD, 6 tracks — out 2026-10-31. Every track says which receptions it is made of.","date_published":"2026-10-31T00:00:00Z","id":"https://nilheard.com/release/NH001/","image":"https://nilheard.com/media/ba0681a17b92261f7c02b866dd8511cc3240f6f33261d3e4c5fcf18a63bcb5d8-600.jpg","title":"NIL HEARD — Reception Conditions Were Poor","url":"https://nilheard.com/release/NH001/"},{"attachments":[{"duration_in_seconds":600,"mime_type":"audio/ogg","url":"https://nilheard.com/media/4b941f43e139d026012dbb5a01880d48d58a5fbc6767189cd893e15b10f95a39.opus"},{"duration_in_seconds":600,"mime_type":"audio/mp4","url":"https://nilheard.com/media/4b941f43e139d026012dbb5a01880d48d58a5fbc6767189cd893e15b10f95a39.m4a"}],"content_text":"mixed 100% — received at Eganville, Canada, 15034 kHz USB, 10:00.","date_published":"2026-10-06T21:01:29Z","id":"2026-10-06T2101Z-15034-volmet-15034-trenton","image":"https://nilheard.com/spectrogram/4b941f43e139d026012dbb5a01880d48d58a5fbc6767189cd893e15b10f95a39.png","title":"Trenton Military VOLMET (Canada) · 15034 kHz · 2026-10-06 21:01Z","url":"https://nilheard.com/capture/2026-10-06T2101Z-15034-volmet-15034-trenton/"},{"attachments":[{"duration_in_seconds":60,"mime_type":"audio/ogg","url":"https://nilheard.com/media/e09bb38a87103baf0f6d35db58f390568657c6658ac939a3d7289e3b03b3f688.opus"},{"duration_in_seconds":60,"mime_type":"audio/mp4","url":"https://nilheard.com/media/e09bb38a87103baf0f6d35db58f390568657c6658ac939a3d7289e3b03b3f688.m4a"}],"content_text":"mixed 100% — received at Waimea, Hawaii, 13282 kHz USB, 01:00.","date_published":"2026-10-06T20:59:01Z","id":"2026-10-06T2059Z-13282-volmet-pacific-13282","image":"https://nilheard.com/spectrogram/e09bb38a87103baf0f6d35db58f390568657c6658ac939a3d7289e3b03b3f688.png","title":"Pacific VOLMET · 13282 kHz · 2026-10-06 20:59Z","url":"https://nilheard.com/capture/2026-10-06T2059Z-13282-volmet-pacific-13282/"},{"attachments":[{"duration_in_seconds":281,"mime_type":"audio/ogg","url":"https://nilheard.com/media/edef6b9f95851279acd1242885700647797cc2b6e85fc8298ae9610304ce27b0.opus"},{"duration_in_seconds":281,"mime_type":"audio/mp4","url":"https://nilheard.com/media/edef6b9f95851279acd1242885700647797cc2b6e85fc8298ae9610304ce27b0.m4a"}],"content_text":"mixed 100% — received at Pine Bush, NY 12566, 12013.5 kHz USB, 04:41.","date_published":"2026-10-06T20:52:52Z","id":"2026-10-06T2052Z-12013.5-fsk-nss-12015","image":"https://nilheard.com/spectrogram/edef6b9f95851279acd1242885700647797cc2b6e85fc8298ae9610304ce27b0.png","title":"NSS US Navy Annapolis, continuous FSK · 12013.5 kHz · 2026-10-06 20:52Z","url":"https://nilheard.com/capture/2026-10-06T2052Z-12013.5-fsk-nss-12015/"},{"attachments":[{"duration_in_seconds":300,"mime_type":"audio/ogg","url":"https://nilheard.com/media/f4c39da16372e001996a081bb531f053cd83911c27cd4fc82f0d4189fdbd59e1.opus"},{"duration_in_seconds":300,"mime_type":"audio/mp4","url":"https://nilheard.com/media/f4c39da16372e001996a081bb531f053cd83911c27cd4fc82f0d4189fdbd59e1.m4a"}],"content_text":"keyed-tone 67% · noise 33% · tone 1163 Hz · keying 0.35 Hz depth 0.77 — received at Waimea, Hawaii, 15000 kHz AM, 05:00.","date_published":"2026-10-06T20:46:01Z","id":"2026-10-06T2046Z-15000-wwvh-15000","image":"https://nilheard.com/spectrogram/f4c39da16372e001996a081bb531f053cd83911c27cd4fc82f0d4189fdbd59e1.png","title":"WWVH time signal · 15000 kHz · 2026-10-06 20:46Z","url":"https://nilheard.com/capture/2026-10-06T2046Z-15000-wwvh-15000/"},{"attachments":[{"duration_in_seconds":296,"mime_type":"audio/ogg","url":"https://nilheard.com/media/ed697a7efd28af77cdce07f361db721098f8a20ecde30aaedc9e5873adb9931d.opus"},{"duration_in_seconds":296,"mime_type":"audio/mp4","url":"https://nilheard.com/media/ed697a7efd28af77cdce07f361db721098f8a20ecde30aaedc9e5873adb9931d.m4a"}],"content_text":"keyed-tone 67% · carrier 27% · data 7% · tone 680 Hz · keying 0.20 Hz depth 0.51 — received at Shrewsbury, Vermont, USA, 10000 kHz AM, 04:56.","date_published":"2026-10-06T20:39:38Z","id":"2026-10-06T2039Z-10000-wwv-10000-na","image":"https://nilheard.com/spectrogram/ed697a7efd28af77cdce07f361db721098f8a20ecde30aaedc9e5873adb9931d.png","title":"WWV time signal · 10000 kHz · 2026-10-06 20:39Z","url":"https://nilheard.com/capture/2026-10-06T2039Z-10000-wwv-10000-na/"},{"attachments":[{"duration_in_seconds":299,"mime_type":"audio/ogg","url":"https://nilheard.com/media/eac67b4cd4d280daeeecffb3882a6c6b5ebf1b69a24cd885618096a96aa5db58.opus"},{"duration_in_seconds":299,"mime_type":"audio/mp4","url":"https://nilheard.com/media/eac67b4cd4d280daeeecffb3882a6c6b5ebf1b69a24cd885618096a96aa5db58.m4a"}],"content_text":"carrier 53% · keyed-tone 47% · tone 2317 Hz · keying 0.30 Hz depth 0.49 — received at Assen | Netherlands, 3853.1 kHz USB, 04:59.","date_published":"2026-10-06T20:32:49Z","id":"2026-10-06T2032Z-3853.1-wxfax-3855","image":"https://nilheard.com/spectrogram/eac67b4cd4d280daeeecffb3882a6c6b5ebf1b69a24cd885618096a96aa5db58.png","title":"DWD Pinneberg weather fax · 3853.1 kHz · 2026-10-06 20:32Z","url":"https://nilheard.com/capture/2026-10-06T2032Z-3853.1-wxfax-3855/"},{"attachments":[{"duration_in_seconds":600,"mime_type":"audio/ogg","url":"https://nilheard.com/media/d8c3a97391951f8c158afbd8fa73956413deda96106f4d7dcb7e76cd929722af.opus"},{"duration_in_seconds":600,"mime_type":"audio/mp4","url":"https://nilheard.com/media/d8c3a97391951f8c158afbd8fa73956413deda96106f4d7dcb7e76cd929722af.m4a"}],"content_text":"mixed 100% — received at Assen | Netherlands, 516.5 kHz USB, 10:00.","date_published":"2026-10-06T20:19:04Z","id":"2026-10-06T2019Z-516.5-navtex-518","image":"https://nilheard.com/spectrogram/d8c3a97391951f8c158afbd8fa73956413deda96106f4d7dcb7e76cd929722af.png","title":"NAVTEX · 516.5 kHz · 2026-10-06 20:19Z","url":"https://nilheard.com/capture/2026-10-06T2019Z-516.5-navtex-518/"},{"attachments":[{"duration_in_seconds":361,"mime_type":"audio/ogg","url":"https://nilheard.com/media/2a6e885b19a7b6e5749729275372b5a52fe3c31f4066fa1977cc9b220f19a3bd.opus"},{"duration_in_seconds":361,"mime_type":"audio/mp4","url":"https://nilheard.com/media/2a6e885b19a7b6e5749729275372b5a52fe3c31f4066fa1977cc9b220f19a3bd.m4a"}],"content_text":"mixed 100% — received at Shrewsbury, Vermont, USA, 6494.5 kHz USB, 06:01.","date_published":"2026-10-06T20:11:34Z","id":"2026-10-06T2011Z-6494.5-rtty-cfh-6496","image":"https://nilheard.com/spectrogram/2a6e885b19a7b6e5749729275372b5a52fe3c31f4066fa1977cc9b220f19a3bd.png","title":"CFH Halifax (Canadian Forces) fax/RTTY · 6494.5 kHz · 2026-10-06 20:11Z","url":"https://nilheard.com/capture/2026-10-06T2011Z-6494.5-rtty-cfh-6496/"},{"attachments":[{"duration_in_seconds":300,"mime_type":"audio/ogg","url":"https://nilheard.com/media/969aeb24dd9d67aa0f93b87bd850af0b90fb965fe8e6b47e304be1d84bf1ca7d.opus"},{"duration_in_seconds":300,"mime_type":"audio/mp4","url":"https://nilheard.com/media/969aeb24dd9d67aa0f93b87bd850af0b90fb965fe8e6b47e304be1d84bf1ca7d.m4a"}],"content_text":"keyed-tone 60% · carrier 13% · mixed 13% · morse 13% · tone 999 Hz · keying 0.40 Hz depth 0.57 — received at Assen | Netherlands, 4995 kHz USB, 05:00.","date_published":"2026-10-06T20:04:52Z","id":"2026-10-06T2004Z-4995-rwm-4996","image":"https://nilheard.com/spectrogram/969aeb24dd9d67aa0f93b87bd850af0b90fb965fe8e6b47e304be1d84bf1ca7d.png","title":"RWM Moscow time signal · 4995 kHz · 2026-10-06 20:04Z","url":"https://nilheard.com/capture/2026-10-06T2004Z-4995-rwm-4996/"},{"attachments":[{"duration_in_seconds":212,"mime_type":"audio/ogg","url":"https://nilheard.com/media/8007eaf880bc69963b611a8702635c0df0649dda54f015cfbcb32435b7204637.opus"},{"duration_in_seconds":212,"mime_type":"audio/mp4","url":"https://nilheard.com/media/8007eaf880bc69963b611a8702635c0df0649dda54f015cfbcb32435b7204637.m4a"}],"content_text":"voice 64% · keyed-tone 18% · mixed 18% · tone 1869 Hz · keying 1.20 Hz depth 0.81 — received at Jędrzejów, 6617 kHz USB, 03:32.","date_published":"2026-10-06T19:56:27Z","id":"2026-10-06T1956Z-6617-volmet-6617-rostov","image":"https://nilheard.com/spectrogram/8007eaf880bc69963b611a8702635c0df0649dda54f015cfbcb32435b7204637.png","title":"Rostov VOLMET (Russian) night · 6617 kHz · 2026-10-06 19:56Z","url":"https://nilheard.com/capture/2026-10-06T1956Z-6617-volmet-6617-rostov/"},{"attachments":[{"duration_in_seconds":225,"mime_type":"audio/ogg","url":"https://nilheard.com/media/8265e76dd88f82d33282677e0571248cacda420ee434db7302b04ee7b2af75d1.opus"},{"duration_in_seconds":225,"mime_type":"audio/mp4","url":"https://nilheard.com/media/8265e76dd88f82d33282677e0571248cacda420ee434db7302b04ee7b2af75d1.m4a"}],"content_text":"keyed-tone 92% · carrier 8% · tone 1002 Hz · keying 1.00 Hz depth 0.92 — received at Brettnach F57320, 59 kHz USB, 03:45.","date_published":"2026-10-06T19:49:18Z","id":"2026-10-06T1949Z-59-msf-60","image":"https://nilheard.com/spectrogram/8265e76dd88f82d33282677e0571248cacda420ee434db7302b04ee7b2af75d1.png","title":"MSF Anthorn 60 kHz time code · 59 kHz · 2026-10-06 19:49Z","url":"https://nilheard.com/capture/2026-10-06T1949Z-59-msf-60/"},{"attachments":[{"duration_in_seconds":238,"mime_type":"audio/ogg","url":"https://nilheard.com/media/266a5fe0e349b36b124a44bc08c2544a1d744542caed397c942b667f07ab2578.opus"},{"duration_in_seconds":238,"mime_type":"audio/mp4","url":"https://nilheard.com/media/266a5fe0e349b36b124a44bc08c2544a1d744542caed397c942b667f07ab2578.m4a"}],"content_text":"mixed 100% — received at Assen | Netherlands, 6693 kHz USB, 03:58.","date_published":"2026-10-06T19:42:56Z","id":"2026-10-06T1942Z-6693-volmet-6693-samara","image":"https://nilheard.com/spectrogram/266a5fe0e349b36b124a44bc08c2544a1d744542caed397c942b667f07ab2578.png","title":"Samara VOLMET (Russian) night · 6693 kHz · 2026-10-06 19:42Z","url":"https://nilheard.com/capture/2026-10-06T1942Z-6693-volmet-6693-samara/"},{"attachments":[{"duration_in_seconds":341,"mime_type":"audio/ogg","url":"https://nilheard.com/media/eb865de3b6ea1f96b6325f892d7dee9c3b56603a5e4ede50901a4cd6b4cff436.opus"},{"duration_in_seconds":341,"mime_type":"audio/mp4","url":"https://nilheard.com/media/eb865de3b6ea1f96b6325f892d7dee9c3b56603a5e4ede50901a4cd6b4cff436.m4a"}],"content_text":"mixed 100% — received at Assen | Netherlands, 28.7 kHz USB, 05:41.","date_published":"2026-10-06T19:29:13Z","id":"2026-10-06T1929Z-28.7-vlf-28700","image":"https://nilheard.com/spectrogram/eb865de3b6ea1f96b6325f892d7dee9c3b56603a5e4ede50901a4cd6b4cff436.png","title":"VLF Israel 29.7 kHz submarine broadcast · 28.7 kHz · 2026-10-06 19:29Z","url":"https://nilheard.com/capture/2026-10-06T1929Z-28.7-vlf-28700/"},{"attachments":[{"duration_in_seconds":600,"mime_type":"audio/ogg","url":"https://nilheard.com/media/ba5f97ee4cde1cbbd6630ecbd6d0ef3fbc7e376280ecc16279cc4b01ffedf497.opus"},{"duration_in_seconds":600,"mime_type":"audio/mp4","url":"https://nilheard.com/media/ba5f97ee4cde1cbbd6630ecbd6d0ef3fbc7e376280ecc16279cc4b01ffedf497.m4a"}],"content_text":"keyed-tone 100% · tone 536 Hz · keying 0.30 Hz depth 0.95 — received at Hamburg, Drage, 🇩🇪 Germany 🇩🇪, 4625 kHz USB, 10:00.","date_published":"2026-10-06T19:17:18Z","id":"2026-10-06T1917Z-4625-uvb76-4625","image":"https://nilheard.com/spectrogram/ba5f97ee4cde1cbbd6630ecbd6d0ef3fbc7e376280ecc16279cc4b01ffedf497.png","title":"UVB-76 \"The Buzzer\" · 4625 kHz · 2026-10-06 19:17Z","url":"https://nilheard.com/capture/2026-10-06T1917Z-4625-uvb76-4625/"},{"attachments":[{"duration_in_seconds":300,"mime_type":"audio/ogg","url":"https://nilheard.com/media/28b6d7f750b8867aae94ae94c9dcdfa7b4dcb836359911b1d1d0b256d9b0d63c.opus"},{"duration_in_seconds":300,"mime_type":"audio/mp4","url":"https://nilheard.com/media/28b6d7f750b8867aae94ae94c9dcdfa7b4dcb836359911b1d1d0b256d9b0d63c.m4a"}],"content_text":"mixed 100% — received at Hamburg, Drage, 🇩🇪 Germany 🇩🇪, 8888 kHz USB, 05:00.","date_published":"2026-10-06T19:10:26Z","id":"2026-10-06T1910Z-8888-volmet-8888-novosibirsk","image":"https://nilheard.com/spectrogram/28b6d7f750b8867aae94ae94c9dcdfa7b4dcb836359911b1d1d0b256d9b0d63c.png","title":"Novosibirsk VOLMET (Russian) day · 8888 kHz · 2026-10-06 19:10Z","url":"https://nilheard.com/capture/2026-10-06T1910Z-8888-volmet-8888-novosibirsk/"},{"attachments":[{"duration_in_seconds":180,"mime_type":"audio/ogg","url":"https://nilheard.com/media/ba3e5b736acea6f34569d991d564c695bed5c943a7231452c5b20da8b9b79209.opus"},{"duration_in_seconds":180,"mime_type":"audio/mp4","url":"https://nilheard.com/media/ba3e5b736acea6f34569d991d564c695bed5c943a7231452c5b20da8b9b79209.m4a"}],"content_text":"keyed-tone 89% · carrier 11% · tone 501 Hz · keying 0.23 Hz depth 0.96 — received at Eganville, Canada, 10000 kHz AM, 03:00.","date_published":"2026-10-06T19:05:48Z","id":"2026-10-06T1905Z-10000-wwv-hamsci-10000","image":"https://nilheard.com/spectrogram/ba3e5b736acea6f34569d991d564c695bed5c943a7231452c5b20da8b9b79209.png","title":"WWV HamSCI test signal (minute 8) · 10000 kHz · 2026-10-06 19:05Z","url":"https://nilheard.com/capture/2026-10-06T1905Z-10000-wwv-hamsci-10000/"},{"attachments":[{"duration_in_seconds":190,"mime_type":"audio/ogg","url":"https://nilheard.com/media/8607e8fd2684dacdb0f6597d5f4d06a8879159418f39ba3cb508ae24afa2ddee.opus"},{"duration_in_seconds":190,"mime_type":"audio/mp4","url":"https://nilheard.com/media/8607e8fd2684dacdb0f6597d5f4d06a8879159418f39ba3cb508ae24afa2ddee.m4a"}],"content_text":"keyed-tone 50% · mixed 30% · morse 10% · carrier 10% · tone 390 Hz · keying 0.28 Hz depth 0.81 — received at Hablingbo, Gotland Island, SWEDEN, 5334.1 kHz USB, 03:10.","date_published":"2026-10-06T19:01:11Z","id":"2026-10-06T1901Z-5334.1-wxfax-rbw-5336","image":"https://nilheard.com/spectrogram/8607e8fd2684dacdb0f6597d5f4d06a8879159418f39ba3cb508ae24afa2ddee.png","title":"RBW41 Murmansk radiofax · 5334.1 kHz · 2026-10-06 19:01Z","url":"https://nilheard.com/capture/2026-10-06T1901Z-5334.1-wxfax-rbw-5336/"},{"attachments":[{"duration_in_seconds":180,"mime_type":"audio/ogg","url":"https://nilheard.com/media/dd5cc1737881ec39e117c41ab4d5e64a0f38a3e2780c6c69e0a92b088216c4f9.opus"},{"duration_in_seconds":180,"mime_type":"audio/mp4","url":"https://nilheard.com/media/dd5cc1737881ec39e117c41ab4d5e64a0f38a3e2780c6c69e0a92b088216c4f9.m4a"}],"content_text":"mixed 100% — received at Brettnach F57320, 4879.2 kHz USB, 03:00.","date_published":"2026-10-06T18:56:48Z","id":"2026-10-06T1856Z-4879.2-m23-4880","image":"https://nilheard.com/spectrogram/dd5cc1737881ec39e117c41ab4d5e64a0f38a3e2780c6c69e0a92b088216c4f9.png","title":"M23 slow morse, evening slot · 4879.2 kHz · 2026-10-06 18:56Z","url":"https://nilheard.com/capture/2026-10-06T1856Z-4879.2-m23-4880/"},{"attachments":[{"duration_in_seconds":600,"mime_type":"audio/ogg","url":"https://nilheard.com/media/10dbe0ef759da4d6e3f7116a80cabcd4d295babff1fe28c433f031e859726e53.opus"},{"duration_in_seconds":600,"mime_type":"audio/mp4","url":"https://nilheard.com/media/10dbe0ef759da4d6e3f7116a80cabcd4d295babff1fe28c433f031e859726e53.m4a"}],"content_text":"mixed 93% · voice 7% · keying 1.20 Hz depth 0.71 — received at Sedlcany, Czech Republic, 4479.1 kHz USB, 10:00.","date_published":"2026-10-06T18:42:57Z","id":"2026-10-06T1842Z-4479.1-wxfax-svj4-4481","image":"https://nilheard.com/spectrogram/10dbe0ef759da4d6e3f7116a80cabcd4d295babff1fe28c433f031e859726e53.png","title":"SVJ4 Athens radiofax · 4479.1 kHz · 2026-10-06 18:42Z","url":"https://nilheard.com/capture/2026-10-06T1842Z-4479.1-wxfax-svj4-4481/"},{"attachments":[{"duration_in_seconds":600,"mime_type":"audio/ogg","url":"https://nilheard.com/media/91e93ebbf51db5e2fe8040e42c56bc1eddea7b4977fc18d66bdec59cc4ecef34.opus"},{"duration_in_seconds":600,"mime_type":"audio/mp4","url":"https://nilheard.com/media/91e93ebbf51db5e2fe8040e42c56bc1eddea7b4977fc18d66bdec59cc4ecef34.m4a"}],"content_text":"carrier 53% · keyed-tone 23% · morse 20% · data 3% · tone 1840 Hz · keying 0.20 Hz depth 0.77 — received at Hamburg, Drage, 🇩🇪 Germany 🇩🇪, 7038.3 kHz USB, 10:00.","date_published":"2026-10-06T18:31:21Z","id":"2026-10-06T1831Z-7038.3-mx-7039","image":"https://nilheard.com/spectrogram/91e93ebbf51db5e2fe8040e42c56bc1eddea7b4977fc18d66bdec59cc4ecef34.png","title":"Russian cluster beacons (MX) · 7038.3 kHz · 2026-10-06 18:31Z","url":"https://nilheard.com/capture/2026-10-06T1831Z-7038.3-mx-7039/"},{"attachments":[{"duration_in_seconds":600,"mime_type":"audio/ogg","url":"https://nilheard.com/media/9c2b49f99e8bbc07fe3a7788bae992aa45f37a036b461cf73c505f5d3d22c141.opus"},{"duration_in_seconds":600,"mime_type":"audio/mp4","url":"https://nilheard.com/media/9c2b49f99e8bbc07fe3a7788bae992aa45f37a036b461cf73c505f5d3d22c141.m4a"}],"content_text":"mixed 100% — received at Assen | Netherlands, 4325 kHz USB, 10:00.","date_published":"2026-10-06T18:19:41Z","id":"2026-10-06T1819Z-4325-tmarker-4325","image":"https://nilheard.com/spectrogram/9c2b49f99e8bbc07fe3a7788bae992aa45f37a036b461cf73c505f5d3d22c141.png","title":"T-Marker · 4325 kHz · 2026-10-06 18:19Z","url":"https://nilheard.com/capture/2026-10-06T1819Z-4325-tmarker-4325/"},{"attachments":[{"duration_in_seconds":600,"mime_type":"audio/ogg","url":"https://nilheard.com/media/665728ca28d1c0860135fe0b1d08b238be9cf4a4fbeaa2024b752b25b9bb93e4.opus"},{"duration_in_seconds":600,"mime_type":"audio/mp4","url":"https://nilheard.com/media/665728ca28d1c0860135fe0b1d08b238be9cf4a4fbeaa2024b752b25b9bb93e4.m4a"}],"content_text":"voice 100% · keying 0.93 Hz depth 0.91 — received at Assen | Netherlands, 5505 kHz USB, 10:00.","date_published":"2026-10-06T18:07:59Z","id":"2026-10-06T1807Z-5505-volmet-5505","image":"https://nilheard.com/spectrogram/665728ca28d1c0860135fe0b1d08b238be9cf4a4fbeaa2024b752b25b9bb93e4.png","title":"Shannon VOLMET aviation weather · 5505 kHz · 2026-10-06 18:07Z","url":"https://nilheard.com/capture/2026-10-06T1807Z-5505-volmet-5505/"},{"attachments":[{"duration_in_seconds":422,"mime_type":"audio/ogg","url":"https://nilheard.com/media/0c0324635bd36d0a323ea12b299ff9924e94171cbfa5c531ee7319ca7278a947.opus"},{"duration_in_seconds":422,"mime_type":"audio/mp4","url":"https://nilheard.com/media/0c0324635bd36d0a323ea12b299ff9924e94171cbfa5c531ee7319ca7278a947.m4a"}],"content_text":"mixed 100% — received at Assen | Netherlands, 516.5 kHz USB, 07:02.","date_published":"2026-10-06T17:58:51Z","id":"2026-10-06T1758Z-516.5-navtex-518","image":"https://nilheard.com/spectrogram/0c0324635bd36d0a323ea12b299ff9924e94171cbfa5c531ee7319ca7278a947.png","title":"NAVTEX · 516.5 kHz · 2026-10-06 17:58Z","url":"https://nilheard.com/capture/2026-10-06T1758Z-516.5-navtex-518/"},{"attachments":[{"duration_in_seconds":362,"mime_type":"audio/ogg","url":"https://nilheard.com/media/d897cacbcb0251555e0eec3b5a89426541792d48f40f81043c7a5457f717195e.opus"},{"duration_in_seconds":362,"mime_type":"audio/mp4","url":"https://nilheard.com/media/d897cacbcb0251555e0eec3b5a89426541792d48f40f81043c7a5457f717195e.m4a"}],"content_text":"keyed-tone 79% · carrier 10% · mixed 10% · tone 360 Hz · keying 0.75 Hz depth 0.97 — received at Assen | Netherlands, 3363.5 kHz USB, 06:02.","date_published":"2026-10-06T17:51:19Z","id":"2026-10-06T1751Z-3363.5-squeaky-3363","image":"https://nilheard.com/spectrogram/d897cacbcb0251555e0eec3b5a89426541792d48f40f81043c7a5457f717195e.png","title":"The Squeaky Wheel · 3363.5 kHz · 2026-10-06 17:51Z","url":"https://nilheard.com/capture/2026-10-06T1751Z-3363.5-squeaky-3363/"},{"attachments":[{"duration_in_seconds":300,"mime_type":"audio/ogg","url":"https://nilheard.com/media/56bd93b89628af1f383ab02be9da6a09ed5d3092e92b8306b83799b48b641796.opus"},{"duration_in_seconds":300,"mime_type":"audio/mp4","url":"https://nilheard.com/media/56bd93b89628af1f383ab02be9da6a09ed5d3092e92b8306b83799b48b641796.m4a"}],"content_text":"noise 100% — received at Maui, Hawaii, USA, 15000 kHz AM, 05:00.","date_published":"2026-10-06T17:44:45Z","id":"2026-10-06T1744Z-15000-wwvh-15000","image":"https://nilheard.com/spectrogram/56bd93b89628af1f383ab02be9da6a09ed5d3092e92b8306b83799b48b641796.png","title":"WWVH time signal · 15000 kHz · 2026-10-06 17:44Z","url":"https://nilheard.com/capture/2026-10-06T1744Z-15000-wwvh-15000/"},{"attachments":[{"duration_in_seconds":300,"mime_type":"audio/ogg","url":"https://nilheard.com/media/6134fc6c751095cacffccb93b82f76c4a9c7039aadd4aff9125c75c6c9451021.opus"},{"duration_in_seconds":300,"mime_type":"audio/mp4","url":"https://nilheard.com/media/6134fc6c751095cacffccb93b82f76c4a9c7039aadd4aff9125c75c6c9451021.m4a"}],"content_text":"keyed-tone 67% · mixed 13% · morse 13% · carrier 7% · tone 1008 Hz · keying 0.70 Hz depth 0.98 — received at Hamburg, Drage, 🇩🇪 Germany 🇩🇪, 4995 kHz USB, 05:00.","date_published":"2026-10-06T17:35:57Z","id":"2026-10-06T1735Z-4995-rwm-4996","image":"https://nilheard.com/spectrogram/6134fc6c751095cacffccb93b82f76c4a9c7039aadd4aff9125c75c6c9451021.png","title":"RWM Moscow time signal · 4995 kHz · 2026-10-06 17:35Z","url":"https://nilheard.com/capture/2026-10-06T1735Z-4995-rwm-4996/"},{"attachments":[{"duration_in_seconds":255,"mime_type":"audio/ogg","url":"https://nilheard.com/media/f1f7d3efb4ef7838121e1d8f5e32879c66aec121f8c9496c0a506f44f1a09790.opus"},{"duration_in_seconds":255,"mime_type":"audio/mp4","url":"https://nilheard.com/media/f1f7d3efb4ef7838121e1d8f5e32879c66aec121f8c9496c0a506f44f1a09790.m4a"}],"content_text":"keyed-tone 38% · voice 38% · mixed 23% · tone 498 Hz · keying 0.75 Hz depth 0.85 — received at Hamburg, Drage, 🇩🇪 Germany 🇩🇪, 3756 kHz USB, 04:15.","date_published":"2026-10-06T17:30:08Z","id":"2026-10-06T1730Z-3756-pip-3756","image":"https://nilheard.com/spectrogram/f1f7d3efb4ef7838121e1d8f5e32879c66aec121f8c9496c0a506f44f1a09790.png","title":"The Pip · 3756 kHz · 2026-10-06 17:30Z","url":"https://nilheard.com/capture/2026-10-06T1730Z-3756-pip-3756/"},{"attachments":[{"duration_in_seconds":300,"mime_type":"audio/ogg","url":"https://nilheard.com/media/b60f57c92cf0a7465357d9b440878d79e6eb0b49acddc8de86e1453df1f3d6db.opus"},{"duration_in_seconds":300,"mime_type":"audio/mp4","url":"https://nilheard.com/media/b60f57c92cf0a7465357d9b440878d79e6eb0b49acddc8de86e1453df1f3d6db.m4a"}],"content_text":"voice 67% · mixed 33% · keying 1.75 Hz depth 0.84 — received at Męcina, Poland, 6617 kHz USB, 05:00.","date_published":"2026-10-06T17:23:17Z","id":"2026-10-06T1723Z-6617-volmet-6617-rostov","image":"https://nilheard.com/spectrogram/b60f57c92cf0a7465357d9b440878d79e6eb0b49acddc8de86e1453df1f3d6db.png","title":"Rostov VOLMET (Russian) night · 6617 kHz · 2026-10-06 17:23Z","url":"https://nilheard.com/capture/2026-10-06T1723Z-6617-volmet-6617-rostov/"},{"attachments":[{"duration_in_seconds":300,"mime_type":"audio/ogg","url":"https://nilheard.com/media/699605f23bc7212a51f4b8c286f55c15ef83884ef932559feedfbe20d27c003e.opus"},{"duration_in_seconds":300,"mime_type":"audio/mp4","url":"https://nilheard.com/media/699605f23bc7212a51f4b8c286f55c15ef83884ef932559feedfbe20d27c003e.m4a"}],"content_text":"voice 73% · mixed 27% · keying 0.80 Hz depth 0.74 — received at Montmorillon 86500 FRANCE, 6693 kHz USB, 05:00.","date_published":"2026-10-06T17:14:41Z","id":"2026-10-06T1714Z-6693-volmet-6693-samara","image":"https://nilheard.com/spectrogram/699605f23bc7212a51f4b8c286f55c15ef83884ef932559feedfbe20d27c003e.png","title":"Samara VOLMET (Russian) night · 6693 kHz · 2026-10-06 17:14Z","url":"https://nilheard.com/capture/2026-10-06T1714Z-6693-volmet-6693-samara/"},{"attachments":[{"duration_in_seconds":300,"mime_type":"audio/ogg","url":"https://nilheard.com/media/d3c5f3b51d2dfb762de6de3ed612e4051f6093052459d56f39079aac74cba6b2.opus"},{"duration_in_seconds":300,"mime_type":"audio/mp4","url":"https://nilheard.com/media/d3c5f3b51d2dfb762de6de3ed612e4051f6093052459d56f39079aac74cba6b2.m4a"}],"content_text":"mixed 100% — received at Montmorillon 86500 FRANCE, 8888 kHz USB, 05:00.","date_published":"2026-10-06T17:08:00Z","id":"2026-10-06T1708Z-8888-volmet-8888-novosibirsk","image":"https://nilheard.com/spectrogram/d3c5f3b51d2dfb762de6de3ed612e4051f6093052459d56f39079aac74cba6b2.png","title":"Novosibirsk VOLMET (Russian) day · 8888 kHz · 2026-10-06 17:08Z","url":"https://nilheard.com/capture/2026-10-06T1708Z-8888-volmet-8888-novosibirsk/"},{"attachments":[{"duration_in_seconds":217,"mime_type":"audio/ogg","url":"https://nilheard.com/media/9c1d18ee30663785bb77a3d9ceb3506e1f6e04d0e9a5da0f12285ae10b33d8d4.opus"},{"duration_in_seconds":217,"mime_type":"audio/mp4","url":"https://nilheard.com/media/9c1d18ee30663785bb77a3d9ceb3506e1f6e04d0e9a5da0f12285ae10b33d8d4.m4a"}],"content_text":"mixed 100% — received at White House, Tennesee, 10151.5 kHz USB, 03:37.","date_published":"2026-10-06T17:02:50Z","id":"2026-10-06T1702Z-10151.5-fsk-nau-10153","image":"https://nilheard.com/spectrogram/9c1d18ee30663785bb77a3d9ceb3506e1f6e04d0e9a5da0f12285ae10b33d8d4.png","title":"NAU US Navy Puerto Rico, continuous FSK · 10151.5 kHz · 2026-10-06 17:02Z","url":"https://nilheard.com/capture/2026-10-06T1702Z-10151.5-fsk-nau-10153/"},{"attachments":[{"duration_in_seconds":513,"mime_type":"audio/ogg","url":"https://nilheard.com/media/13b1a4de7a3eebfc876b852ad012e8952802d82c757213f1ee386d9814f61af3.opus"},{"duration_in_seconds":513,"mime_type":"audio/mp4","url":"https://nilheard.com/media/13b1a4de7a3eebfc876b852ad012e8952802d82c757213f1ee386d9814f61af3.m4a"}],"content_text":"data 35% · keyed-tone 23% · mixed 15% · morse 15% · carrier 8% · voice 4% · tone 2197 Hz · keying 4.00 Hz depth 0.94 — received at Heppen, Limburg, Belgium, 4608.1 kHz USB, 08:33.","date_published":"2026-10-06T16:15:02Z","id":"2026-10-06T1615Z-4608.1-wxfax-gya-4610","image":"https://nilheard.com/spectrogram/13b1a4de7a3eebfc876b852ad012e8952802d82c757213f1ee386d9814f61af3.png","title":"GYA Northwood radiofax, 4610 kHz (night) · 4608.1 kHz · 2026-10-06 16:15Z","url":"https://nilheard.com/capture/2026-10-06T1615Z-4608.1-wxfax-gya-4610/"},{"attachments":[{"duration_in_seconds":300,"mime_type":"audio/ogg","url":"https://nilheard.com/media/f5bdc7cc812d7a8284efab58cf03ab7ff2d1f9ac5d4758e3550de2e1a2d8e238.opus"},{"duration_in_seconds":300,"mime_type":"audio/mp4","url":"https://nilheard.com/media/f5bdc7cc812d7a8284efab58cf03ab7ff2d1f9ac5d4758e3550de2e1a2d8e238.m4a"}],"content_text":"keyed-tone 60% · carrier 27% · mixed 13% · tone 999 Hz · keying 1.00 Hz depth 0.99 — received at Heppen, Limburg, Belgium, 9995 kHz USB, 05:00.","date_published":"2026-10-06T16:07:25Z","id":"2026-10-06T1607Z-9995-rwm-9996","image":"https://nilheard.com/spectrogram/f5bdc7cc812d7a8284efab58cf03ab7ff2d1f9ac5d4758e3550de2e1a2d8e238.png","title":"RWM Moscow time signal · 9995 kHz · 2026-10-06 16:07Z","url":"https://nilheard.com/capture/2026-10-06T1607Z-9995-rwm-9996/"},{"attachments":[{"duration_in_seconds":600,"mime_type":"audio/ogg","url":"https://nilheard.com/media/fcca63f1c3a14913d69398928e1e68c03327a2e765a030969ac27e9762c1ed1b.opus"},{"duration_in_seconds":600,"mime_type":"audio/mp4","url":"https://nilheard.com/media/fcca63f1c3a14913d69398928e1e68c03327a2e765a030969ac27e9762c1ed1b.m4a"}],"content_text":"carrier 100% · tone 2048 Hz — received at Heppen, Limburg, Belgium, 23 kHz USB, 10:00.","date_published":"2026-10-06T15:56:00Z","id":"2026-10-06T1556Z-23-vlf-23000","image":"https://nilheard.com/spectrogram/fcca63f1c3a14913d69398928e1e68c03327a2e765a030969ac27e9762c1ed1b.png","title":"VLF submarine band 23.3-25.7 kHz (DHO38, NAA, Russia, Turkey chord) · 23 kHz · 2026-10-06 15:56Z","url":"https://nilheard.com/capture/2026-10-06T1556Z-23-vlf-23000/"},{"attachments":[{"duration_in_seconds":255,"mime_type":"audio/ogg","url":"https://nilheard.com/media/928835b4ba67d295df71f615c136dd9707bc7a02f6fccdff9b99fceeb6d58565.opus"},{"duration_in_seconds":255,"mime_type":"audio/mp4","url":"https://nilheard.com/media/928835b4ba67d295df71f615c136dd9707bc7a02f6fccdff9b99fceeb6d58565.m4a"}],"content_text":"mixed 100% — received at Heppen, Limburg, Belgium, 516.5 kHz USB, 04:15.","date_published":"2026-10-06T15:50:32Z","id":"2026-10-06T1550Z-516.5-navtex-518","image":"https://nilheard.com/spectrogram/928835b4ba67d295df71f615c136dd9707bc7a02f6fccdff9b99fceeb6d58565.png","title":"NAVTEX · 516.5 kHz · 2026-10-06 15:50Z","url":"https://nilheard.com/capture/2026-10-06T1550Z-516.5-navtex-518/"},{"attachments":[{"duration_in_seconds":600,"mime_type":"audio/ogg","url":"https://nilheard.com/media/f49936a2a005d253529f594cee0aae8aef8de8239e109c63186783eccb1382a0.opus"},{"duration_in_seconds":600,"mime_type":"audio/mp4","url":"https://nilheard.com/media/f49936a2a005d253529f594cee0aae8aef8de8239e109c63186783eccb1382a0.m4a"}],"content_text":"keyed-tone 57% · carrier 33% · data 10% · tone 2651 Hz · keying 0.75 Hz depth 0.60 — received at Heppen, Limburg, Belgium, 17.3 kHz USB, 10:00.","date_published":"2026-10-06T15:39:14Z","id":"2026-10-06T1539Z-17.3-vlf-17300","image":"https://nilheard.com/spectrogram/f49936a2a005d253529f594cee0aae8aef8de8239e109c63186783eccb1382a0.png","title":"VLF submarine band 17.6-20.0 kHz (RDL, HWU, GBZ chord) · 17.3 kHz · 2026-10-06 15:39Z","url":"https://nilheard.com/capture/2026-10-06T1539Z-17.3-vlf-17300/"},{"attachments":[{"duration_in_seconds":600,"mime_type":"audio/ogg","url":"https://nilheard.com/media/43fbf0359d7534de9632a8a6e1b41c1b11b15683ec7aba26f9c1fa706b996e24.opus"},{"duration_in_seconds":600,"mime_type":"audio/mp4","url":"https://nilheard.com/media/43fbf0359d7534de9632a8a6e1b41c1b11b15683ec7aba26f9c1fa706b996e24.m4a"}],"content_text":"mixed 100% — received at Eganville, Canada, 8414.6 kHz USB, 10:00.","date_published":"2026-10-06T15:27:46Z","id":"2026-10-06T1527Z-8414.6-wxfax-vff-8416","image":"https://nilheard.com/spectrogram/43fbf0359d7534de9632a8a6e1b41c1b11b15683ec7aba26f9c1fa706b996e24.png","title":"VFF Iqaluit Meteo radiofax (two windows a day) · 8414.6 kHz · 2026-10-06 15:27Z","url":"https://nilheard.com/capture/2026-10-06T1527Z-8414.6-wxfax-vff-8416/"},{"attachments":[{"duration_in_seconds":173,"mime_type":"audio/ogg","url":"https://nilheard.com/media/c3cc0dd28c06e4dd7cdadcf0f3be26aeddf7ce5fdd164a578a4d0ef7966095a5.opus"},{"duration_in_seconds":173,"mime_type":"audio/mp4","url":"https://nilheard.com/media/c3cc0dd28c06e4dd7cdadcf0f3be26aeddf7ce5fdd164a578a4d0ef7966095a5.m4a"}],"content_text":"keyed-tone 100% · tone 2317 Hz · keying 0.25 Hz depth 0.75 — received at Heppen, Limburg, Belgium, 7878.1 kHz USB, 02:53.","date_published":"2026-10-06T15:22:05Z","id":"2026-10-06T1522Z-7878.1-wxfax-7880","image":"https://nilheard.com/spectrogram/c3cc0dd28c06e4dd7cdadcf0f3be26aeddf7ce5fdd164a578a4d0ef7966095a5.png","title":"DWD Pinneberg weather fax · 7878.1 kHz · 2026-10-06 15:22Z","url":"https://nilheard.com/capture/2026-10-06T1522Z-7878.1-wxfax-7880/"},{"attachments":[{"duration_in_seconds":302,"mime_type":"audio/ogg","url":"https://nilheard.com/media/8fb0f11cd45b1a64a305b113e80db362e95ab7186235f7195bd800ae3f8bb3f7.opus"},{"duration_in_seconds":302,"mime_type":"audio/mp4","url":"https://nilheard.com/media/8fb0f11cd45b1a64a305b113e80db362e95ab7186235f7195bd800ae3f8bb3f7.m4a"}],"content_text":"voice 69% · mixed 31% · keying 0.45 Hz depth 0.80 — received at ZL1ROT Rotorua, New Zealand, 6693 kHz USB, 05:02.","date_published":"2026-10-06T15:14:10Z","id":"2026-10-06T1514Z-6693-volmet-6693-samara","image":"https://nilheard.com/spectrogram/8fb0f11cd45b1a64a305b113e80db362e95ab7186235f7195bd800ae3f8bb3f7.png","title":"Samara VOLMET (Russian) night · 6693 kHz · 2026-10-06 15:14Z","url":"https://nilheard.com/capture/2026-10-06T1514Z-6693-volmet-6693-samara/"},{"attachments":[{"duration_in_seconds":141,"mime_type":"audio/ogg","url":"https://nilheard.com/media/7b5a9818d5c46c4803577a3c98bcdd952bfc879d00d17563db868d3d33a1d613.opus"},{"duration_in_seconds":141,"mime_type":"audio/mp4","url":"https://nilheard.com/media/7b5a9818d5c46c4803577a3c98bcdd952bfc879d00d17563db868d3d33a1d613.m4a"}],"content_text":"keyed-tone 100% · tone 800 Hz · keying 0.35 Hz depth 0.98 — received at Męcina, Poland, 8423.2 kHz USB, 02:21.","date_published":"2026-10-06T15:10:35Z","id":"2026-10-06T1510Z-8423.2-cw-svo-8424","image":"https://nilheard.com/spectrogram/7b5a9818d5c46c4803577a3c98bcdd952bfc879d00d17563db868d3d33a1d613.png","title":"SVO Olimpia Radio (Greece) CW marker · 8423.2 kHz · 2026-10-06 15:10Z","url":"https://nilheard.com/capture/2026-10-06T1510Z-8423.2-cw-svo-8424/"},{"attachments":[{"duration_in_seconds":180,"mime_type":"audio/ogg","url":"https://nilheard.com/media/31fe109e03ab1ffb2d0a6eb87e0a4ea5334442cb5c09f59a03ecfeafec6cdf24.opus"},{"duration_in_seconds":180,"mime_type":"audio/mp4","url":"https://nilheard.com/media/31fe109e03ab1ffb2d0a6eb87e0a4ea5334442cb5c09f59a03ecfeafec6cdf24.m4a"}],"content_text":"keyed-tone 100% · tone 501 Hz · keying 0.30 Hz depth 0.96 — received at Eganville, Canada, 10000 kHz AM, 03:00.","date_published":"2026-10-06T15:05:39Z","id":"2026-10-06T1505Z-10000-wwv-hamsci-10000","image":"https://nilheard.com/spectrogram/31fe109e03ab1ffb2d0a6eb87e0a4ea5334442cb5c09f59a03ecfeafec6cdf24.png","title":"WWV HamSCI test signal (minute 8) · 10000 kHz · 2026-10-06 15:05Z","url":"https://nilheard.com/capture/2026-10-06T1505Z-10000-wwv-hamsci-10000/"},{"attachments":[{"duration_in_seconds":300,"mime_type":"audio/ogg","url":"https://nilheard.com/media/28e5ccf6fff5174883a3d0a96dab44d085c717f2abef4edb90ad10f10bd87d81.opus"},{"duration_in_seconds":300,"mime_type":"audio/mp4","url":"https://nilheard.com/media/28e5ccf6fff5174883a3d0a96dab44d085c717f2abef4edb90ad10f10bd87d81.m4a"}],"content_text":"mixed 100% — received at Heppen, Limburg, Belgium, 13375 kHz USB, 05:00.","date_published":"2026-10-06T14:59:20Z","id":"2026-10-06T1459Z-13375-e07-tuefri-1500","image":"https://nilheard.com/spectrogram/28e5ccf6fff5174883a3d0a96dab44d085c717f2abef4edb90ad10f10bd87d81.png","title":"E07 \"English Man\", Tuesday/Friday 15:00 set · 13375 kHz · 2026-10-06 14:59Z","url":"https://nilheard.com/capture/2026-10-06T1459Z-13375-e07-tuefri-1500/"},{"attachments":[{"duration_in_seconds":302,"mime_type":"audio/ogg","url":"https://nilheard.com/media/feb8712d7b5b719f2987159ffb090f8c219542b78aa08a5416555912f7ef2296.opus"},{"duration_in_seconds":302,"mime_type":"audio/mp4","url":"https://nilheard.com/media/feb8712d7b5b719f2987159ffb090f8c219542b78aa08a5416555912f7ef2296.m4a"}],"content_text":"data 81% · keyed-tone 12% · morse 6% · tone 1178 Hz · keying 0.35 Hz depth 0.94 — received at Matsukawa, Fukushima JAPAN, 6250 kHz USB, 05:02.","date_published":"2026-10-06T14:53:02Z","id":"2026-10-06T1453Z-6250-xsl-6250","image":"https://nilheard.com/spectrogram/feb8712d7b5b719f2987159ffb090f8c219542b78aa08a5416555912f7ef2296.png","title":"XSL \"Japanese Slot Machine\" · 6250 kHz · 2026-10-06 14:53Z","url":"https://nilheard.com/capture/2026-10-06T1453Z-6250-xsl-6250/"},{"attachments":[{"duration_in_seconds":601,"mime_type":"audio/ogg","url":"https://nilheard.com/media/7f4950ff3040dbbb26431186280318dc7e111888555b198ea026839dab8ada66.opus"},{"duration_in_seconds":601,"mime_type":"audio/mp4","url":"https://nilheard.com/media/7f4950ff3040dbbb26431186280318dc7e111888555b198ea026839dab8ada66.m4a"}],"content_text":"keyed-tone 100% · tone 999 Hz · keying 1.00 Hz depth 0.83 — received at Ireland, 76.5 kHz USB, 10:01.","date_published":"2026-10-06T14:41:00Z","id":"2026-10-06T1441Z-76.5-dcf77-77.5","image":"https://nilheard.com/spectrogram/7f4950ff3040dbbb26431186280318dc7e111888555b198ea026839dab8ada66.png","title":"DCF77 LF time signal · 76.5 kHz · 2026-10-06 14:41Z","url":"https://nilheard.com/capture/2026-10-06T1441Z-76.5-dcf77-77.5/"},{"attachments":[{"duration_in_seconds":600,"mime_type":"audio/ogg","url":"https://nilheard.com/media/8b4884828a5687faa680e4c6ad836eae7a629dc98ba1fe93726c2444a4ef88e7.opus"},{"duration_in_seconds":600,"mime_type":"audio/mp4","url":"https://nilheard.com/media/8b4884828a5687faa680e4c6ad836eae7a629dc98ba1fe93726c2444a4ef88e7.m4a"}],"content_text":"keyed-tone 100% · tone 1796 Hz · keying 0.65 Hz depth 0.98 — received at Sweden, 6805.2 kHz USB, 10:00.","date_published":"2026-10-06T14:29:21Z","id":"2026-10-06T1429Z-6805.2-marker-6806","image":"https://nilheard.com/spectrogram/8b4884828a5687faa680e4c6ad836eae7a629dc98ba1fe93726c2444a4ef88e7.png","title":"Unnamed Russian marker channel 6806 kHz · 6805.2 kHz · 2026-10-06 14:29Z","url":"https://nilheard.com/capture/2026-10-06T1429Z-6805.2-marker-6806/"},{"attachments":[{"duration_in_seconds":598,"mime_type":"audio/ogg","url":"https://nilheard.com/media/621e1f5e606a504c21f36ff5d8736f277609745cfd5ab16f887f7c13b4f7a36d.opus"},{"duration_in_seconds":598,"mime_type":"audio/mp4","url":"https://nilheard.com/media/621e1f5e606a504c21f36ff5d8736f277609745cfd5ab16f887f7c13b4f7a36d.m4a"}],"content_text":"voice 73% · mixed 23% · keyed-tone 3% · tone 431 Hz · keying 1.00 Hz depth 0.80 — received at Larvik, Norway, 8957 kHz USB, 09:58.","date_published":"2026-10-06T14:17:12Z","id":"2026-10-06T1417Z-8957-volmet-8957","image":"https://nilheard.com/spectrogram/621e1f5e606a504c21f36ff5d8736f277609745cfd5ab16f887f7c13b4f7a36d.png","title":"Shannon VOLMET aviation weather · 8957 kHz · 2026-10-06 14:17Z","url":"https://nilheard.com/capture/2026-10-06T1417Z-8957-volmet-8957/"},{"attachments":[{"duration_in_seconds":300,"mime_type":"audio/ogg","url":"https://nilheard.com/media/c211a52ff49841eac7c0931ed026c11ffa2f77a76e72739bed7b229ccc899374.opus"},{"duration_in_seconds":300,"mime_type":"audio/mp4","url":"https://nilheard.com/media/c211a52ff49841eac7c0931ed026c11ffa2f77a76e72739bed7b229ccc899374.m4a"}],"content_text":"mixed 53% · voice 47% · keying 1.80 Hz depth 0.72 — received at Ironstone Range, South Australia, 8888 kHz USB, 05:00.","date_published":"2026-10-06T14:10:47Z","id":"2026-10-06T1410Z-8888-volmet-8888-novosibirsk","image":"https://nilheard.com/spectrogram/c211a52ff49841eac7c0931ed026c11ffa2f77a76e72739bed7b229ccc899374.png","title":"Novosibirsk VOLMET (Russian) day · 8888 kHz · 2026-10-06 14:10Z","url":"https://nilheard.com/capture/2026-10-06T1410Z-8888-volmet-8888-novosibirsk/"},{"attachments":[{"duration_in_seconds":60,"mime_type":"audio/ogg","url":"https://nilheard.com/media/3e0c21d5171d90b47b5f4105d0727576fc451f09e4638d1393fc822f9e4c1b10.opus"},{"duration_in_seconds":60,"mime_type":"audio/mp4","url":"https://nilheard.com/media/3e0c21d5171d90b47b5f4105d0727576fc451f09e4638d1393fc822f9e4c1b10.m4a"}],"content_text":"carrier 100% · tone 999 Hz — received at Larvik, Norway, 9995 kHz USB, 01:00.","date_published":"2026-10-06T14:05:57Z","id":"2026-10-06T1405Z-9995-rwm-9996","image":"https://nilheard.com/spectrogram/3e0c21d5171d90b47b5f4105d0727576fc451f09e4638d1393fc822f9e4c1b10.png","title":"RWM Moscow time signal · 9995 kHz · 2026-10-06 14:05Z","url":"https://nilheard.com/capture/2026-10-06T1405Z-9995-rwm-9996/"},{"attachments":[{"duration_in_seconds":120,"mime_type":"audio/ogg","url":"https://nilheard.com/media/7fe801452523ed2cfde651a97e47a4a437f17029a2512fa9bebd58dca0d69776.opus"},{"duration_in_seconds":120,"mime_type":"audio/mp4","url":"https://nilheard.com/media/7fe801452523ed2cfde651a97e47a4a437f17029a2512fa9bebd58dca0d69776.m4a"}],"content_text":"noise 67% · keyed-tone 33% · tone 100 Hz · keying 1.00 Hz depth 0.89 — received at Presque Isle, WI USA, 20000 kHz AM, 02:00.","date_published":"2026-10-06T14:02:42Z","id":"2026-10-06T1402Z-20000-wwv-20000","image":"https://nilheard.com/spectrogram/7fe801452523ed2cfde651a97e47a4a437f17029a2512fa9bebd58dca0d69776.png","title":"WWV time signal, 20 MHz (day) · 20000 kHz · 2026-10-06 14:02Z","url":"https://nilheard.com/capture/2026-10-06T1402Z-20000-wwv-20000/"},{"attachments":[{"duration_in_seconds":600,"mime_type":"audio/ogg","url":"https://nilheard.com/media/db2bcccbbf7f79c5599d45d3b27c13866caf793c1d7bac36d566e2c5b45ddc23.opus"},{"duration_in_seconds":600,"mime_type":"audio/mp4","url":"https://nilheard.com/media/db2bcccbbf7f79c5599d45d3b27c13866caf793c1d7bac36d566e2c5b45ddc23.m4a"}],"content_text":"carrier 37% · morse 33% · keyed-tone 20% · data 7% · mixed 3% · tone 2297 Hz · keying 2.00 Hz depth 0.81 — received at Larvik, Norway, 8038.1 kHz USB, 10:00.","date_published":"2026-10-06T13:51:02Z","id":"2026-10-06T1351Z-8038.1-wxfax-gya-8040","image":"https://nilheard.com/spectrogram/db2bcccbbf7f79c5599d45d3b27c13866caf793c1d7bac36d566e2c5b45ddc23.png","title":"GYA Northwood radiofax, 8040 kHz (day) · 8038.1 kHz · 2026-10-06 13:51Z","url":"https://nilheard.com/capture/2026-10-06T1351Z-8038.1-wxfax-gya-8040/"}],"title":"NIL HEARD — RECEPTION LOG","version":"https://jsonfeed.org/version/1.1"}