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marc wrote:
I'm a noob, and I'm considering installing a wire antenna using the sole tree on my lot as one end. My question is "Is it dangerous if the antenna touches the tree branches/leaves during transmit?" I'm less worried about performance right now and more safety. Marc W5AMP how much power? I used to have a dipole outside my apartment and the wires would touch some of the leaves/branches. I used a tuner at the feedpoint. On 40m (only), running 100W, it would arc to the tree on damp nights. So, the real answer is, it depends. 100W dissipated in one spot could probably start a fire. a few watts lost in miscellaneous crackling and sparks, probably not. If your wire antenna goes to an insulator, then to a rope/cable that goes to the tree, then you're probably much better off than just flinging the antenna wire through the branches. (the latter is popular with backpack portable...) And, if you're that close to the tree, you're probably inducing some RF currents in the tree, so RF fields safety is an issue. Again, it depends. Power, operating mode, style of operation, whether there's any access controls to the area where the tree is, how high the antenna is, how big the tree is, etc. |
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