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138:. The tower is assembled from sections that are bolted together. To ensure that the entire tower is a single conductor, the sections are bonded electrically at the joints with short jumpers. In this case, copper strips have been soldered between the vertical risers.
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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.
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Closeup of joint between mast sections of antenna tower of AM radio station KBRC, located in Mount Vernon, Washington State, USA. The steel lattice
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