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Would not expect much interaction from a vertical element above the beam. An approximation would be to model using 1/4 wave vertical monopoles above the beam on each band. 73 Barry end Barry Kirkwood PhD ZL1DD Signal Hill Homestay 66 Cory Road Palm Beach Waiheke Island 1240 NEW ZEALAND ph/fax 64-9-372-5161 www.waiheke.co.nz/signal.htm ----- Original Message ----- From: "Jim Smith" <jimsmith@shaw.ca> To: <force12talk@qth.com> Sent: Tuesday, April 08, 2003 12:35 PM Subject: Re: [Force 12 Talk] R5 mounted above C4SXL - good idea or bad? > Hi, and thanks for the responses. > > I guess I wasn't very clear as to why I want the vertical. > > 1. When not at the rig I want to run BeaconSee for hours at a time, > plotting the strength of the various NCDXF beacons around the world on > the computer monitor and saving periodically for analysis. Can't do > this with a beam. Need omni-directionality. > > 2. While DXing, would like to be able to monitor one DX station on a > separate receiver (has he got to the sevens yet?) while chasing other ones. > > 3. The Biggie. While contesting I want to be able to hunt for mults on > the 2nd receiver (my old 75A4) while CQing on the MkV. I expect this > capability would enable me to increase my scores by a good 20%. (I'm > hoping for another 20% from the C4.) > > 4. When someone weak calls me off the side of the beam he'll probably > be a lot louder on the vertical. Work him on the vert and don't waste > time swinging the beam. > > So, you see, I really, really, really do want to have a vertical > available. I did once have a mobile whip mounted as described over my > present TH3 tribander. It was perfectly possible to listen to sigs on > one band while transmitting on another. It would still be there but it > didn't work worth a damn as a vertical. > > So, any advice as to things to watch out for or shareable models available? > > 73 de Jim Smith VE7FO > > > > -------------------------------------------- > 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 n4zr@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 n4zr@qth.com |