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Fart Blossom wrote:
Does anyone have a plan that I can build without a gamma match. Just something that is a straight forward dipole. Thanks all. Ok, this works ... Work with 146 MHz, middle of 2m. 468 / 146 ~ 3.2 ft for 1/2 wavelength, total length of dipole. Each half of that (1/4 wl) is ~ 19.23 inches. Asuming you have some coax of the right type/length etc. with whatever connector you need for your radio, gently cut the outer insulation about 19.3 inches from the free end. Pull the whole piece of outer insulation off the braid. Fold the braid back over itself toward the radio end for the complete length of the stripped braid, 19.3 inches. Now from the end you have a 19.3 inch section of only the center dielectric and inner conductor, followed by a 19.3 inch section where the braid has been folded back over the outside of the coax, and then the rest of the coax looks normal. You need to seal up the approx 40 inches on the end of the coax that you've been working with. If it's mounted outside I would also rig it inside a capped piece of pvc pipe. There, clear as mud ... |
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