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in the separate feed configuration was used for the 40 driven N element, and a strengthened boom had director and reflector N elements out at the Magnum 340 N distances. Or just the single element N driver on the spare mount. For the C19, put it INSIDE a two element N 40 ? Or N series variants 140N with a C31 wrapped around it = C31XRN 240N with a C19 inside it. = C24XRN 340N with a C31 inside it. = C36XRN None of these have a phasing offset with another tribander. The last one is MY single tower top antenna if you ever make it. It has enormous structural and installation advantages over magnum 340N plus C31XR 8 feet up on the mast. - . . . . . . - - . . . . - - . . - . . 73, Guy k2av@contesting.com Apex, NC, USA ----- Original Message ----- From: Natan Huffman <force12e@lightlink.com> To: F12Talk <force12talk@qth.com> Sent: Saturday, April 08, 2000 5:15 PM Subject: [Force 12 Talk] 40 meter N elements & 72 ohm > Over the last few months I have often been asked about the possibility of > substituting our new "N" element for our standard EF140 series element. The > advantage of doing this would be the enjoyment of the greater bandwidth > (2:1.) > > Doing the swap for antennas such as the C36XR, C51XR, C4XL and others turns > out to be a most significant re-engineering task. The first model we are > working on is the C36XR. To do this redesign, we must solve significant > mechanical issues as the N element weighs more than what we now use and this > subsequent weight increase means balance changes and the boom must be > strengthened considerably. We must keep the opening for the tower (for side > mount installation) where it is and the driven cell can't be moved, so this > is just one of the problems. > -------------------------------------------- Force12Talk mailing list provided as a service by Force 12 Antennas, Inc. Force 12 Web site: http://www.qth.com/force12 Submissions: send to Force12Talk@qth.com To unsubscribe: send a blank e-mail to Force12Talk-leave@qth.com Force12Talk Message Archive: http://www.qth.com/force12/list/force12talk For problems with the list, contact force12@qth.com |
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