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- Subject: Re: [IRCA] Inland TP's
- From: C B <bevdxer@xxxxxxxxx>
- Date: Sat, 17 Sep 2016 19:01:38 +0000 (UTC)
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I just received a couple of the KB-5 units from a gentleman in Maine who makes them. As you mentioned, I don't think the QB-18I transformers are in production any longer. I got them on Ebay many years ago. They are an 18:1 unit. The s/n difference was what was really pronounced. I live in a noisy area, which influenced my choice with the ALA 1530ln. Living as far inland as I do, I anticipated the need for amplification, as quiet as practical. The ALA 1530ln was so quiet compared to what I was accustomed to, that at first I thought something was wrong with the antenna. Further evaluation revealed that the s/n of that antenna is simply head and shoulders above anything I had used in the past. It was just behind the Conti loop as far as apparent gain and equivalent in the s/n category. I would add that I thought that the s/n of either the KB-5 or the QB18I was also degraded by the introduction of the DX Engineering RPA-1 preamp. The "cleanest", most intelligible signals were with either the ALA 1530ln, or the other two transformers without amplification. This was my first go at a vs b vs c testing, with me climbing up a ladder switching out antenna transformers during the brief window of TP signals present at this location. I must confess that a Grayland session right after the 2006 IRCA Convention hosted by Pat Martin at Seaside left a sustained and indelible interest in TP dxing on me! While health and other considerations influenced me to move back down to town from the mountains where bogs and EWEs abounded, I will continue to squeeze all of the blood out of this "turnip" that I can, hi!
Craig
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On Sat, 9/17/16, Nick Hall-Patch <nhp@xxxxxxxx> wrote:
Subject: Re: [IRCA] Inland TP's
To: "Mailing list for the International Radio Club of America" <irca@xxxxxxxxxxxxxxxx>
Date: Saturday, September 17, 2016, 12:32 PM
Interesting results
Craig.ÂÂÂIt sounds as if the FLG-100LN isn't
functioning properly. (first thought...power supply?)
When you say "outperformed" was it in raw gain, signal to
noise or ?
I'm not familiar with either the KB-5 or QB-18I.Â
Are these no
longer in production?
best wishes,
Nick
At 14:17 17-09-16, you wrote:
>....
>I did some testing with transformers on my wnw Conti
super loop this
>morning. Between an FLG 100ln, a
KB-5ÂÂÂMW/LW balun and an Erickson
>QB-18I. Interestingly the KB-5 and QB-18I consistently
outperformed
>the FLG-100ln on the loop, with and without the use of
the DX
>Engineering RPA-1 preamp. The ALA 1530ln held it's own.
I used JOUB
>and 1566(presumed HLAZ) as the test frequencies. The
test was
>limited to challenging TP DX targets for the Midwest.
Nick Hall-Patch
Victoria, BC
Canada
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