For one good version of the J-pole that is very portable see; http://hamgate1.sunyerie.edu/~larc/pocketJpole.htm A Google search on "twin lead J-pole" (without the quotes) will give you many more sites. The J-Pole will outperform a rubber duck in nearly ALL cases. Even the loose from the coax is offset by the added height of the antenna. With RG-58 coax you would need to have more coax than you want to carry to make the j-pole less efficient than the rubber duck. For emergency antennas I usually use RG-174 about 20' long and it is FAR better than the rubber duck. I use these antennas on Ham radio and marine VHF and they work very well. michael N6CHV Evan Dallas wrote: > Sorry, I'm on the digest version of Paddlewise, so I just got your posting. > The primary idea I had was an antenna for emergency transmission, presumably > in the neighborhood of 157 MHz. Secondary use would be to improve reception > in remote areas. > > However, if as you say, this arrangment works less well than the rubber > ducky antenna for transmission, then there's less incentive for me to do > this. Are you saying the quality of the transmission would be poorer, even > though the range would be farther (due to being elevated higher)? > > I've been having a hard time finding a sketch of a J-pole antenna, other *************************************************************************** PaddleWise Paddling Mailing List - Any opinions or suggestions expressed here are solely those of the writer(s). You must assume the entire responsibility for reliance upon them. All postings copyright the author. Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************Received on Tue Apr 20 2004 - 10:21:22 PDT
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