File:OptPad.jpg
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 18:31, 23 June 2008 | 925 × 638 (361 KB) | Sebman81 | {{Information |Description={{en|1=The 30 MHz HAARP Riometer. It uses a 2 X 2 array of five element yagi antennas.}} {{de|1=Das 30 MHz HAARP Riometer. Es verwendet ein 2 X 2 Array von Fünf-Element-Yagi-Antennen.}} |Source=http://www.haarp.alaska.edu/haarp |
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