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#8
September 3rd 08, 01:11 AM
posted to rec.radio.amateur.antenna
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Antenna info needed
On Sep 1, 8:58*pm, Jim-NN7K . wrote:
Tam sez: "sangeo" wrote in message ... I came across a good 2 meter 12 element beam. The boom is aprox 19 ft long. It has 4 driven elements in a "log" or lattice configuration. I need info to make the coax connection. Does anyone have an Idea as to Mfg? *The driven elements are spaced about 7 inches apart. It is in good shape except for the missing connection points. Thanks, 73's George I would connect a feedline to the mounting screws of the front most DE and measure the SWR. If you get anything like 4:1 it is 200 Ohms. The KLM 6m beam with 2 driven elements requires a 4:1 balun. I have not seen the KLM 2m. According to an old AES catalog, 2m KLM antennas in this range had boom lengths of 15.33, 21.5, 12.9, 28 , and a circularly polarized 22 element on a 19 foot boom; nothing with 12 elements, but it could be older. Tam/WB2TT The 2 meter one s I had were 50 ohm (2 meter 14 el) *somewhere in this mess I have the "Manual" *(more like 3 pages) *for it. * IF can find , can e-mail. *Jim NN7K- Hide quoted text - - Show quoted text - My email is |
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