Wes et al, The claim was made in the last several editions of the Radio Handbook in describing a TV twinlead folded Marconi for 160m.
73, Dave Heil K8MN On 8/3/2012 01 18, Wes Attaway (N5WA) wrote: > Yes, he did. I remember the article from a long time ago. The theme of the > article was how you could improve efficiency by folding the element. It > raised the feed impedance and therefore reduced losses. I do not have the > article at hand but I do remember it. If it was a QST article then it will > be in their online archives. > > > ----------------- Wes Attaway (N5WA) ------------------- > 1138 Waters Edge Circle, Shreveport, LA 71106 > 318-797-4972 (Office) - 318-393-3289 (Cell) > Computer Consulting and Forensics > -------------- EnCase Certified Examiner --------------- > > > -----Original Message----- > From: [email protected] [mailto:[email protected]] > On Behalf Of ZR > Sent: Thursday, August 02, 2012 5:58 PM > To: Tom W8JI; [email protected] > Subject: Re: Topband: THE ITINERANT 160 METER ANTENNA PROJECT > > > ----- Original Message ----- > From: "Tom W8JI" <[email protected]> > To: <[email protected]> > Sent: Thursday, August 02, 2012 6:21 PM > Subject: Re: Topband: THE ITINERANT 160 METER ANTENNA PROJECT > > >>> (1) 130 feet of 300 ohms twin lead with the far one end shorted and >>> pulled up over a coconut by a local climber $5 US max and connected to a >>> small nylon line for adjustment in an inverted or sloping fashion back >>> to my hotel room on the beach. (without the local climber bring along a >>> slingshot fishing line launcher.) If the hotel wasn't right on the beach >>> or had any 70 foot palms I just drove to another one that did. Masting >>> anything up beyond 50 feet by yourself just forget it. Palm trees are >>> great substitutes. I think this antenna was describe for 160 in Bill >>> Orr's (W6SAI) firsts handbooks. >> >> >> Just be aware Orr had a consistent mistake in his articles on folded >> antennas. He claimed folding reduced ground losses by significant amounts. >> >> I'm not sure where that idea started, but using a folded element does not >> change ground loss one bit. >> >> 73 Tom > > > Did he actually claim that or that the effect of the ground loss was > reduced? I dont have a reference handy. > > Carl > KM1H ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2197 / Virus Database: 2437/5172 - Release Date: 08/02/12 _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
