Thanks everyone. I plan to try it this weekend. 73
Art NK8X ᐧ On Mon, Oct 17, 2016 at 1:56 PM, Ray Benny <[email protected]> wrote: > > ----- Original Message ----- > From: Mike Furrey <[email protected]> > To: Art Snapper <[email protected]>, 160 <[email protected]> > Sent: Mon, 17 Oct 2016 12:32:20 -0400 (EDT) > Subject: Re: Topband: inv. L > > Hi Art,Yes, I have done that and am doing that. I use tall trees as > supports and the 160 inverted L goes up one side of the tree then bent over > horizontally to another tree over yonder. From the same feed point, the 80 > meter section goes up the other side of the same tree and the top actually > folds over an upper limb down to the tie point. I have had the antennas > separate and had them from the same feed point as I do now and I have not > seen much, if any difference in performance. With 600 watts output I have > about 165 countries on 160 and about 220 on 80 from a small suburban lot in > Houston. I just installed the same antenna in TN and it has worked quite > well there. I feed it through a ferrite bead balun and I have one elevated > (up about 20') per band.Hope this helps. 73, Mike WA5POK > > > On Monday, October 17, 2016 10:17 AM, Art Snapper <[email protected]> > wrote: > > > I was considering adding a second vertical element to my 160 inverted L. > This one would be roughly a quarter wave tall for use on 80. > > I tried modelling in Eznec, but wasn't comfortable with the results. I may > have screwed it up. > > Has anyone tried it for real? Is it a big compromise on either band? Would > a switch at the feedpoint have any benefit? > > My inverted L has about 50 radials. > > 73 > Art NK8X > _________________ > Topband Reflector Archives - http://www.contesting.com/_topband > > Art, > > I do the same. I have a 75 ft irrigation pipe vertical w/top hat wires and > use an base inductor to match it on 160m. I also have a 14 inch standoff > arm attached at the 67 ft point and run a #10 ga drop wire, I call it, to > the base. This wire is not attached to the standoff arm, so it becomes a > 1/4 wave vertical for 80m. It is held away from the irrigation pipe with > flat fiberglass insulators. > > I feed this wire thru a separate feed line and inductor to match it on > 80m. I do have plenty of ferrites on both coax feed lines. Before operating > on 80m, I do have to short the irrigation pipe (160m vertical) to ground. > As of now, I have to go to the base and physically short the vertical with > a ground jumper. > > I have about 100 radials at the base of the vertical(s) and feel I have a > good signal working DX on both bands. > > Ray, > N6VR > > _________________ Topband Reflector Archives - http://www.contesting.com/_topband
