{"id":377,"date":"2016-04-30T12:19:34","date_gmt":"2016-04-30T10:19:34","guid":{"rendered":"http:\/\/www.ik0vve.net\/?page_id=377"},"modified":"2026-04-27T13:54:28","modified_gmt":"2026-04-27T11:54:28","slug":"8270-khz-grabber","status":"publish","type":"page","link":"http:\/\/www.ik0vve.net\/?page_id=377","title":{"rendered":"LF & VLF Grabber – Siegen JO30xw"},"content":{"rendered":"\n
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GPS-controlled VLF radio station. Behringer UMC202 HD 24-bit\/192 kHz sound card, running on a Raspberry Pi 5. Telemetry provided by an ESP8266. Antenna: homemade miniwhip.<\/figcaption><\/figure>\n\n\n\n

5 minutes auto refresh page.<\/p>\n\n\n

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0-28 kHz grabber<\/figcaption><\/figure><\/div>\n\n
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8270 Hz – 424 uHz<\/figcaption><\/figure><\/div>\n\n
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5170 Hz – 424 uHz<\/figcaption><\/figure><\/div>\n\n
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8270 Hz – 44 uHz<\/figcaption><\/figure><\/div>\n\n
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0 – 96 kHz 24H<\/figcaption><\/figure><\/div>\n\n
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SID monitor (Sudden Ionospheric Disturbance Monitor)<\/figcaption><\/figure><\/div>\n\n\n

NAU<\/a><\/strong>: Aguada, Puerto Rico <\/em>40.75 kHz (7400 km); MSF<\/a><\/strong>: Anthorn, UK <\/em>60.00 kHz (876 km); NSY<\/a><\/strong>: Niscemi, Italy<\/em> 45.90 kHz (1615 km);
FTA<\/a><\/strong>: Sainte-Assise, France <\/em>20.90 kHz (470 km); NWC<\/a><\/strong>: Exmouth, Western Australia<\/em> 19.80 kHz (12992 km);
NAA<\/a><\/strong>: Cutler, Maine, USA<\/em> 24.00 (5420 km); JJY40<\/a><\/strong>: Otakadoyayama Transmitter, Tamura, Japan <\/em>40.00 kHz (9175 km);
DHO38<\/a><\/strong>: Rhauderfehn, Germany<\/em> 23.40 kHz (244 km); DCF77<\/a><\/strong>: Mainflingen, Germany <\/em>77.50 kHz (122 km).<\/p>\n\n\n\n

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World lightning map from WWLLN.net<\/a><\/figcaption><\/figure>\n\n\n\n

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