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, topband-request@contesting.com wrote:
>
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> Today's Topics:
>
> 1. How to tune a Parasitic array (ve6wz@shaw.ca)
> 2. CQWW CW160m (Roger Parsons)
> 3. Re: CQWW CW 160m (Charlie)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 28 Nov 2024 20:54:41 +0000
> From: "ve6wz@shaw.ca" <ve6wz@shaw.ca>
> To: "Topband@Contesting. Com" <topband@contesting.com>
> Subject: Topband: How to tune a Parasitic array
> Message-ID:
>
> <DM6PR02MB6987D5A81BA7B750BB6940EEFC292@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 <ve3zi@yahoo.com>
> To: "topband@contesting.com" <topband@contesting.com>
> Subject: Topband: CQWW CW160m
> Message-ID: <161467035.3316772.1732829099795@mail.yahoo.com>
> 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 <cahall10@frontier.com>
> To: "topband@contesting.com" <topband@contesting.com>
> Subject: Re: Topband: CQWW CW 160m
> Message-ID: <622824716.2199156.1732828539929@mail.yahoo.com>
> 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
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> End of Topband Digest, Vol 263, Issue 19
> ****************************************
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