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Re: LF: 2200m Plots of the whole Band

from [Roger Lapthorn] [Permanent Link][Original]
To: "[email protected]" <[email protected]>
Subject: Re: LF: 2200m Plots of the whole Band
From: Roger Lapthorn <[email protected]>
Date: Fri, 8 Jan 2016 20:42:11 +0000
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=XHHqy9xuNfrmyPuMun9pdcx8TNJaUG5Th9A/giZTbtE=; b=E4dhVHZ+12MQ24RoTO6VARey2ACaGLcet9y/P9ttkSgda2kIE8cB0gXLJ3aAIJK9cZ 5+qPGNhfm4/QZNGPWPqdH4ZLHi5wDp2OarW01jtm+ADtKIaGVwEdPdwdvbQcsFxFeO49 3qFL9+P5Y5jguwvMQLvanlBx/SMVK93/n/0cgy016pnTV6MPku9MQr5bTAd/rB7i8MUd F9XnleUT3oZNPiy2EF1NGFeLwtIhHOxy6Scxj/mMXMQgX1PPzt+OSi73uH2RPX0F7bhX n8HePKG3K9KJQh7g7A69cXmA1dR6KudpIgTF7dPhP2ISGCvW8SuuphUfqe/X5PV0SClO G01g==
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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 <[email protected]> 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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