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From: Pat Bunn <pbunn@matrixei.com>
Date: Tue, 7 Jan 2014 14:05:24 -0500
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Subject: Re: [Lowfer] LF: XRS4 and 5 last night
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Strong signal from both here in EM94bw. Dex is wiping out the screen and audibly loud enough for a 599 QSO. The loudest that I have ever heard him. I am taking turns off my barrel coil to get my antenna matched
As soon as I can. I hope to be on 74 KHz by the weekend. Dex - hopefully we can do a QSO

Pat
WG2XLP


Sent from my iPhone

On Jan 7, 2014, at 1:55 PM, Dexter McIntyre W4DEX <dexter.mc@gmail.com> wrote:

> Bob Raide wrote:
>> Mike;
>> First, thanks for great captures of Dex and me.  A look at Hartmut's grabber showed my signal weak or just identifiable with only a couple solid times.  Same with Markus's grabber.  Dex is south of me by at least 300 KM and it is amazing to see his signal over 7000 KM as solid as a rock!  I don't think it would have been that good on 137-but we will never know only over an average of more runs.
>> "One for the propagation experts" is an understatement, indeed.
> 
> The antenna here was perfectly tuned at mid day when the high temperature was about 42F.  The cold front arrived with high winds and the temperature fell quickly reaching a low of 7F by sunrise.  This morning I found the antenna impedance had changed greatly producing a nasty pattern on the scope match traces.  To get the antenna impedance back to where it was at midday yesterday I had to remove two makeshift windings from the matching transformer I was using.  I'm using the same matching transformer on 74 kHz that I use on 137 kHz.  On 74 kHz last fall it took two more turns through the cores than I've ever needed for 137 kHz.   So I just made a few more passes through the cores with the loading coil feed wire.
> 
> The freezing weather probably has improved my signal on 74 kHz but the day before the freeze Hartmut received XRS5 much stronger than last fall.   I suspect this is because the oak trees are now bare.  I like my trees but it sure would be nice to have an open space under the LF antenna top hat wires.
> 
> Here's a picture of the trees with leaves under the top hat wires:
> 
> https://dl.dropboxusercontent.com/u/15095569/w4dex/LF/trees_under_tophat_summer.jpg
> 
> And a picture just now made:
> 
> https://dl.dropboxusercontent.com/u/15095569/w4dex/LF/trees_under_tophat_winter.jpg
> 
> The top hat wires run over the trees with one connecting to a tower at the right side of the metal building on the right.  Another top hat wire runs over the trees to a tower located on the right side of the small brown building.  The ends of the two top hat wire connect together going over more trees.
> 
> Dex
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