Hi everyone Now that I have narrowed down my antenna for top band , the inverted l ,what does the " crew" think about feeding the l with 600 ohm owl at the center at the top
Sent from my iPad > On Aug 29, 2017, at 9:00 AM, [email protected] wrote: > > Send Topband mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.contesting.com/mailman/listinfo/topband > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Topband digest..." > > > Today's Topics: > > 1. Re: 160 4 SQUARE (Mike - W5JR) > 2. Re: Inverted L successes (Wes Stewart) > 3. Re: DX Engineering final field test of the 3Y0Z Bouvet 160 > meter vertical (David Aslin G3WGN) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 28 Aug 2017 23:29:30 -0400 > From: Mike - W5JR <[email protected]> > To: TOPBAND <[email protected]> > Subject: Re: Topband: 160 4 SQUARE > Message-ID: <[email protected]> > Content-Type: text/plain; charset=us-ascii > > And I had a great time in the winter TBDXC a couple of years ago QRP using > the antennas at Mike's 160 farm. The TX array works very good. > > tnx > Mike / W5JR > Alpharetta GA > >> On Aug 28, 2017, at 5:17 PM, Mike Greenway <[email protected]> wrote: >> >> Greg, N4CC,, I have been using something similar to what you are describing >> for about 10 years. I have 140 ft of Rohn 25 with all Phillystrand guys. >> The 4 verticals are supported by nylon cords running from the top of the >> tower. The height of the tower allows me to have 90 ft verticals plus >> around 45 ft top hats at the proper spacing between verticals. I am using a >> Comtek phasing box. At present around 40 135 ft radials on each vertical. >> I never detuned the tower as the F/B and F/S have always been excellent so I >> did not see the need. I did look into it but decided to leave as it was. It >> has been a very competitive transmit system. If you need any further details >> contact me. 73 Mike K4PI >> _________________ >> Topband Reflector Archives - http://www.contesting.com/_topband > > > ------------------------------ > > Message: 2 > Date: Mon, 28 Aug 2017 21:53:24 -0700 > From: Wes Stewart <[email protected]> > To: [email protected] > Subject: Re: Topband: Inverted L successes > Message-ID: <[email protected]> > Content-Type: text/plain; charset=utf-8; format=flowed > > As the real estate people say, "Location, location, location." > > Wes N7WS > >> On 8/28/2017 3:22 PM, [email protected] wrote: >> Last fall I installed an ?S-9? 43 ft vertical, added a tapped loading coil >> at the base, with 10 on-the-ground radials about 100 ft long randomly run >> all over my 60x90 house plot. Rig is 300 watts - Started on 160 DXCC with >> 32 entities, finished DXCC in one winter season. >> My secret: JT65 !!!! (tnx K1JT) >> Try anything ? you will be amazed how successful you can be on top-band >> with a little patience and VERY modest antennas. 73, Jay NY2NY >> _________________ >> Topband Reflector Archives - http://www.contesting.com/_topband > > > > > ------------------------------ > > Message: 3 > Date: Tue, 29 Aug 2017 08:24:37 +0000 > From: David Aslin G3WGN <[email protected]> > To: "[email protected]" <[email protected]> > Subject: Re: Topband: DX Engineering final field test of the 3Y0Z > Bouvet 160 meter vertical > Message-ID: <[email protected]> > Content-Type: text/plain; charset="us-ascii" > > Tim, > This has probably already been said several times: this should be a DXE > product! > It would be a squeeze, but would just fit into my antenna field... > 73, David G3WGN M6O > > > -----Original Message----- > From: Topband [mailto:[email protected]] On Behalf Of > [email protected] > Sent: 29 August 2017 01:22 > To: [email protected] > Subject: Topband Digest, Vol 176, Issue 13 > > The DX Engineering and Bouvet Island teams have worked together to design an > efficient 90 foot top loaded 160 meter vertical antenna that can be installed > quickly and safely on Bouvet Island by the 3Y0Z team this January. > > With a good radial system the difference in gain between a 120 ft (full > quarter wavelength) vertical and this custom 90 foot top loaded vertical is > less than 0.5 dB. > > This vertical uses a custom designed heavy duty hinged pivot base with base > insulators to accommodate a 40 foot falling derrick 3 inch heavy duty pipe > for installation. > > The vertical is base fed using two inductors to match to 50 ohms. The first > 70 feet of the vertical is Universal Aluminum tower (12 inch face) and the > top 20 feet is 1.875 inch diameter aluminum tubing. > > There are guys at 30, 50 and 70 feet. There are also three 30 foot top > loading wires attached to the top of the tubing that are tied to anchors 60 > feet out from the base. > > DXE is actually donating two of these vertical packages to the 3Y0Z team in > case one gets damaged (there are 300 storms per year on Bouvet). > > More details on the construction and the final test raising plus VSWR > measurements are shown in the video filmed and produced (in 4K Ultra) by > Greg, W8WWV. > > https://www.youtube.com/watch?v=bSw-0TjaUiU > > 73, > Tim K3LR > > > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > Topband mailing list > [email protected] > http://lists.contesting.com/mailman/listinfo/topband > > > ------------------------------ > > End of Topband Digest, Vol 176, Issue 14 > **************************************** _________________ Topband Reflector Archives - http://www.contesting.com/_topband
