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From: Gary R Hosler I believe you meant to say that the length of the driven element needs to be lengthened to lower the resonant frequency. de W0AW Richard Thorne <rthorne@tcac.net> on 06/19/2001 10:44:08 AM To: Force12Talk@qth.com cc: (bcc: Gary R Hosler/486382/US/EKC) Subject: Re: [Force 12 Talk] C3S - Adjusting 10m SWR curve ? Marty: I've never messed with a C3S, but I'll make the assumption that the 10m driver is full size and has different length settings. You may have to remove the rivets from the 10m driver and shorten it up a bit to lower the resonant frequency.. There should be some pre-drilled holes to accomadate this change. Marty Tippin wrote: > I have a C3S up and it works fine - only issue I have is that > the SWR is lowest at about 29MHz, rising to well over 2:1 at > 28.300. > > How can I adjust the point of lowest SWR on 10m without screwing > up the other bands? The parasitic nature of the driven elements > makes me think it's not as simple as adding a few inches to the > 10m driven. > > 15 and 20 are not bad - 20 shows acceptable SWR across the band, > and 15 is a little bit low but not worth worrying about. > > -Marty NW0L > martyt@pobox.com > > __________________________________________________ > Do You Yahoo!? > Spot the hottest trends in music, movies, and more. > http://buzz.yahoo.com/ > > -------------------------------------------- > 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 n4zr@qth.com -- Richard Thorne Advo Companies, Inc. 806-342-0600 -------------------------------------------- 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 n4zr@qth.com -------------------------------------------- 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 n4zr@qth.com |
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