Mechanical antennas with rotating permanent magnets are a relatively new type of transmitting antenna in low- and ultralow-frequency (LF/ULF) ranges. The perspectives of the applications are encouraging. especially in the field of non-destructive defectoscopy and communications through conductive media (underwater communications). which is reflected in the articles published in the la... https://fitnessgravesyardes.shop/product-category/guide-rod-plug/