Return to KLUBNL.PL main page

rsgb_lf_group
[Top] [All Lists]

Re: AW: VLF: Unfamiliar carrier on 8270.007

To: [email protected]
Subject: Re: AW: VLF: Unfamiliar carrier on 8270.007
From: Paul Nicholson <[email protected]>
Date: Thu, 23 Nov 2017 21:45:58 +0000
Dkim-signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=abelian.org ; s=default; h=Content-Transfer-Encoding:Content-Type:In-Reply-To: MIME-Version:Date:Message-ID:From:References:To:Subject:Sender:Reply-To:Cc: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=Y3TAKhN5BkwB4HhYQWvInivfsTNX0qJVoEeVwctNUao=; b=UHweytgKuK4AMHuplpYi4wdUUr cagaim7JIri1lRg0aNEfVrb5Bg1HOyFeZe7owWc+xcnZXGMfSGY/3IBLvplUhgn002baVAl5aQQUz n2n4UmwP01LtaX6v0f8J6QRFGcBw3p3FZ1EdIEYilTFJTMbLvMZCWMQpb0KSiJoP+lfQ=;
In-reply-to: <[email protected]>
References: <[email protected]> <[email protected]ca.telekom.de> <[email protected]> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.3.0
Yes, look at this from a few days ago,

 http://abelian.org/vlf/fbins.shtml#p=1511204400&b=100&s=sp
 http://abelian.org/vlf/fbins.shtml#p=1511118000&b=100&s=sp

and more if you scroll back a day at a time.  Note how quite
frequently the signals comes up very strong at about 06:00
for half hour or so.

If you scroll back to the 10th there's Stefan on 8270.005
but no more sign of your signal.  For some reason it's
started showing up in the spectrogram since about the 13th.

I hope to get the new E-field system running again this week-
end if I can complete a re-build.

A couple of pics of the front-end on the bench

 http://abelian.org/vlf/tmp/171123a.jpg
 http://abelian.org/vlf/tmp/171123b.jpg

It slides neatly into the base of the antenna tube.  I've added
a calibration port which works great.

My new calibrator, built into a plastic toolbox,

 http://abelian.org/vlf/tmp/171123c.jpg
 http://abelian.org/vlf/tmp/171123d.jpg

has outputs for voltage injection into the E-field front-end
and current injection to the H-field.  Looking forward to
running it in anger up at the antenna site.

--
Paul Nicholson
--

<Prev in Thread] Current Thread [Next in Thread>