Original file (SVG file, nominally 721 × 293 pixels, file size: 383 KB)
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| DescriptionVLF 18.1 kHz spectrogram.svg |
English: Spectrogram of a 18.1 kHz VLF signal, picked up using a small loop antenna and a sound card. The vertical stripes are distant lightnings.
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| Date | |
| Source | Own work |
| Author | Olli Niemitalo |
| Camera location | 65° 00′ 00″ N, 25° 00′ 00″ E  | View this and other nearby images on: OpenStreetMap |  65.000000; 25.000000 |
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This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
| The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse |
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 10:38, 10 July 2014 | | 721 × 293 (383 KB) | Olli Niemitalo | User created page with UploadWizard |
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| Width | 720.98151 |
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| Height | 292.51675 |
