Ham Radio - Ground spike antenna. Using the earth to receive LF and VLF Kevin Loughin 10:42 7 years ago 59 293 Далее Скачать
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Earth's Natural Radio: Strange sounds at VLF frequencies and below. NVARC Presentation May 2022 Nashoba Valley Amateur Radio Club (NVARC) / N1NC 1:13:56 2 years ago 3 572 Далее Скачать
472kHz WSPR TX/RX with earth electrodes (20m apart in ground) "antenna" G3XBM 3:31 11 years ago 3 636 Далее Скачать
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