Roger VE3ZI you were the strongest NA signal on the band when I briefly listened around 0600z. I say briefly because when I tried to call you my amp instantly shut down with high SWR. When it got light I discovered that the feeder had broken in the gales.
73 Richard G3OQT > On 29 Nov 2024, at 17:00, [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. How to tune a Parasitic array ([email protected]) > 2. CQWW CW160m (Roger Parsons) > 3. Re: CQWW CW 160m (Charlie) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Thu, 28 Nov 2024 20:54:41 +0000 > From: "[email protected]" <[email protected]> > To: "Topband@Contesting. Com" <[email protected]> > Subject: Topband: How to tune a Parasitic array > Message-ID: > > <dm6pr02mb6987d5a81ba7b750bb6940eefc...@dm6pr02mb6987.namprd02.prod.outlook.com> > > Content-Type: text/plain; charset="iso-8859-1" > > Hello fellow TB DXers, > > Today I uploaded the companion video to the 3 element 12 direction video from > a week ago. > > This video is a practical guide to tuning a 2 or 3 element vertical parasitic > (or a Yagi) by just observing the mutual coupling with your analyzer. > I demonstrate mutual coupling in the field and show how that guides us to > adjusting the parasitic elements to achieve the gain, F/B and SWR performance > we want. > Specifically I show how to tune the parasitic elements in a 2 or 3 element > (K3LR style) vertical array to set the gain and FB peaks exactly where you > want them. > I also show how the SWR bandwidth is drastically affected by where we tune > the driver. > To my knowledge, this method has not been described anywhere else and is much > easier than the "traditional" tuning methods. > https://youtu.be/J8S3iZ9-848 > > > 73, de Steve, ve6wz > > PS. Please be aware I get nothing from my YouTube channel. I have chosen not > to monetize my channel even though I could. > You should never see commercial ads on my videos. > Because I have chosen not to monetize with YouTube, most of my videos do not > show up in typical searches since there is no money in it for them. > I make videos only to share some of the stuff I do, mostly for 160m, and > hopefully to help others. > If you know of anyone that might be interested in any of my content, please > share. (or don't). > > I have been asked "why don't you write a paper". Well, I spent 35 years > writing scientific papers and pdfs. I don't want to do that anymore. > A video is easier to squeeze in more information. > > > > ------------------------------ > > Message: 2 > Date: Thu, 28 Nov 2024 21:24:59 +0000 (UTC) > From: Roger Parsons <[email protected]> > To: "[email protected]" <[email protected]> > Subject: Topband: CQWW CW160m > Message-ID: <[email protected]> > Content-Type: text/plain; charset=UTF-8 > > Just a note along with the many others. I was operating single band 160m, and > found the contest quite difficult from here. My excuse is that I am too far > north and too far west... > > Most of the time Europe was either very weak or not there at all, but > individual countries would pop up for a short period. On a (very) few > occasions, M6T and MW5B were S9+. (It is quite unusual for the UK to be the > loudest - normally it is southern Europe.) There were a few quite nice > openings - A60A was workable at 120 degrees whereas the great circle path is > 40 degrees. Was surprised to work JA on both mornings as this has been very > rare for a few years. > > I am lucky enough to have a very quiet location and multiple good receiving > antennas, but this year the 'second layer' stations mostly didn't make it. > > Finally, I must respectfully disagree with the statements that the best time > for DX is after sunrise. In my 60+ years of chasing 160m DX from a number of > countries, I have found that peaks can occur from several hours before > sunrise to a while after sunrise - but rarely more than 15 minutes. > > 73 Roger > VE3ZI > > > > ------------------------------ > > Message: 3 > Date: Thu, 28 Nov 2024 21:15:39 +0000 (UTC) > From: Charlie <[email protected]> > To: "[email protected]" <[email protected]> > Subject: Re: Topband: CQWW CW 160m > Message-ID: <[email protected]> > Content-Type: text/plain; charset="utf-8" > > I have been challenged to work 160m from my location in NE Ohio EN91 for some > time now.? Until recently, my best receiving antenna has been my 65' tall tee > transmit antenna fed from a MFJ998RT remote tuner and about 40 65' long > radials on ground.? I'm in an HOA, but have over 1.5 acres and tall trees for > wires).? I have tried a pair of 200' reversible beverages on ground (RBOG) > running NE/SW and NW/SE and a single 36" commercial aluminum loop.? Neither > of these antennas have ever seemed to outperform the transmit antenna, > although the RBOGs definitely provided directivity, but no noise improvement > over the transmit antenna.Prior to CQWW CW, I obtained Aziloop > hardware/software and constructed a 27' tall K9AY array to use with it.? This > combination has allowed me to see improved performance over my transmit > antenna for the first time at this location.??I was able to see traces of > many spotted DX stations on my panadapter (FLEX6600) but not strong enough to > copy.? The stronger DX stati > ons (and sampling of more local stations) that I was able to work include: > I am encouraged with the performance of this array so far and am going to try > experimenting with longer ground radials on the K9AY array (now 4 x 21' on > ground, no ground rod) and combining this with my transmit antenna and my DX > Engineering NCC-2 combiner to attempt additional directivity and noise > reduction.Happy Holidays to all es 73,- Charlie KC9LA > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: 1732827330971blob.jpg > Type: image/png > Size: 6021 bytes > Desc: not available > URL: > <http://lists.contesting.com/pipermail/topband/attachments/20241128/8ae5ce9e/attachment-0001.png> > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > Topband mailing list > [email protected] > http://lists.contesting.com/mailman/listinfo/topband > > > ------------------------------ > > End of Topband Digest, Vol 263, Issue 19 > **************************************** _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
