File:VLF 18.1 kHz spectrogram.svg
From Infogalactic: the planetary knowledge core
Size of this PNG preview of this SVG file: 721 × 293 pixels. Other resolution: 320 × 130 pixels.
Original file (SVG file, nominally 721 × 293 pixels, file size: 383 KB)
Summary
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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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 06:30, 12 January 2017 | | 721 × 293 (383 KB) | 127.0.0.1 (talk) | 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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