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The Tennadyne LPDA was developed in Colorado to withstand 100 MPH
winds, snow and ice. They offer T-6, T-8, T-10 and T-12 element models from 12' to 30 booms. They have been in TX about 5 years now. Prices include UPS Ground service in lower 48 states. (The KMA is basically a T-8.) GL, Jim, K4SQR "J. McLaughlin" wrote in message ... Dear "Lee" You do not tell us where you are nor whether you wish the antenna for amateur radio or commercial radio. In different parts of the world, different answers might be appropriate. http://www.tennadyne.com/ These people make a series of LPDAs that are competently designed and executed. However, if you are in the ice "zone" you need to know that at about 7 mm of ice the elements almost point straight down. As is often the case with antenna manufacturers who are selling mostly to radio amateurs, the safety factor on the wind rating is optimistic. This should be of interest only if you are hit by very destructive winds or if you are to place the antenna in the clear in an area of clear fields. (The usual urban area significantly reduces wind load.) Two hints: one needs the optional rear boom reinforcement and the optimum way to connect to the antenna is to connect a piece of coax to the front of the boom (obvious part) and run the same coax under the bottom boom (the antenna uses a twin boom) to the insulated boom to mast clamp. At that clamp, wind the coax on a uv stable plastic tube to form a choke and bridge the clamp with the choke. Do not put the choke out at the end of the boom. Let us know what you decide. 73 Mac N8TT -- J. Mc Laughlin - Michigan USA Home: "Lee." wrote in message ... Hello Folks I would like to get a HF log periodic antenna 13 - 30 mcs can anyone recommend one? opinions please??? Lee. |
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