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I had similar problem here with my reflector frequency too low on CW after installation at 72 ft. I just adjusted the driven element only and coil for best SWR at desired freq. SWR is 1:2 now and antenna appears to be working good. Others in list I am sure have had experience in this area and will be able to give you further info. GL - Mel, K0PFX ----- Original Message ----- From: "Keith Dutson" <kjdutson@earthlink.net> To: "Force12Talk" <Force12Talk@qth.com> Sent: Wednesday, July 30, 2003 21:47 PM Subject: [Force 12 Talk] C-4XL Tuning Question > Hi. I am new to this list. I reside in Tomball, TX, a small town 25 miles > to the northwest of Houston. > > I have a C-4XL at 150 feet. I tuned the 40 meter section to 7,140 KHz to > have operation both on CW and SSB. Now I have purchased a relay box to > switch between the bands. The driven element is close to the mast so I can > adjust it up to the recommended 7,220 KHz. However, the antenna must be > taken down to adjust the reflector. If I only adjust the driven element > will I still get decent performance using the relay box? I am thinking the > reflector should remain at 7,140 to accommodate both ends of the band. > > Thanks for any advice you can give me. > > Keith Dutson > WD5DXL > > > > -------------------------------------------- > Force12Talk mailing list provided as a service by Force 12 Antennas, Inc. > Force12 Web Site: http://www.force12inc.com > > To Submit Message to the List: Force12Talk@qth.com > To unsubscribe and view the Message Archive: see http://qth.com/force12/list > For problems with the list: contact force12@qth.com > > > -------------------------------------------- Force12Talk mailing list provided as a service by Force 12 Antennas, Inc. Force12 Web Site: http://www.force12inc.com To Submit Message to the List: Force12Talk@qth.com To unsubscribe and view the Message Archive: see http://qth.com/force12/list For problems with the list: contact force12@qth.com |
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