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Date: Fri, 8 Jan 2016 20:42:11 +0000
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From: Roger Lapthorn <rogerlapthorn@gmail.com>
To: "rsgb_lf_group@blacksheep.org" <rsgb_lf_group@blacksheep.org>
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Subject: Re: LF: 2200m Plots of the whole Band
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*"for the 74kHz experiments 2 years ago"*

What were these please?

73s
Roger G3XBM

On 8 January 2016 at 20:16, Hartmut Wolff <h-wolff@gmx.de> wrote:

> Markus,
>
> thanks for your reply.
>
> Hartmut as you are fairly close to the DCF39 site, I would have expected
>> even stronger sidebands in your spectrograms. Were these from your K9AY
>> antenna pointing away from Burg?
>>
>
> Burg is in the minimum of the antenna at 120 degrees, about 30db down.
>
> There is still a third turn on the antenna, which I added for the 74kHz
> experiments 2 years ago. Then I needed more gain for a better signal to
> thermal noise ratio.
> For 2200m the third turn is not necessary. Only the IP2 signals are
> getting more worse.
>
> 73
> Hartmut
>
>
>

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<div dir=3D"ltr"><div><div><div><i>&quot;for the 74kHz experiments 2 years =
ago&quot;</i><br><br></div>What were these please?<br><br></div>73s<br></di=
v>Roger G3XBM<br></div><div class=3D"gmail_extra"><br><div class=3D"gmail_q=
uote">On 8 January 2016 at 20:16, Hartmut Wolff <span dir=3D"ltr">&lt;<a hr=
ef=3D"mailto:h-wolff@gmx.de" target=3D"_blank">h-wolff@gmx.de</a>&gt;</span=
> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;bo=
rder-left:1px #ccc solid;padding-left:1ex">Markus,<br>
<br>
thanks for your reply.<span class=3D""><br>
<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
Hartmut as you are fairly close to the DCF39 site, I would have expected ev=
en stronger sidebands in your spectrograms. Were these from your K9AY anten=
na pointing away from Burg?<br>
</blockquote>
<br></span>
Burg is in the minimum of the antenna at 120 degrees, about 30db down.<br>
<br>
There is still a third turn on the antenna, which I added for the 74kHz exp=
eriments 2 years ago. Then I needed more gain for a better signal to therma=
l noise ratio.<br>
For 2200m the third turn is not necessary. Only the IP2 signals are getting=
 more worse.<br>
<br>
73<span class=3D"HOEnZb"><font color=3D"#888888"><br>
Hartmut<br>
<br>
<br>
</font></span></blockquote></div><br></div>

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