Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, HTML_MESSAGE,MISSING_MIMEOLE,RCVD_IN_DNSWL_MED,RCVD_IN_SORBS_SPAM,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 X-Spam-DCC: : mailn 1480; Body=2 Fuz1=2 Fuz2=2 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by lipkowski.org (8.14.4/8.14.4/Debian-8+deb8u1) with ESMTP id v12BxWOQ017176 for ; Thu, 2 Feb 2017 12:59:33 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1cZFza-0000ju-5B for rs_out_1@blacksheep.org; Thu, 02 Feb 2017 11:55:58 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1cZFzZ-0000jl-FP for rsgb_lf_group@blacksheep.org; Thu, 02 Feb 2017 11:55:57 +0000 Received: from mailout09.t-online.de ([194.25.134.84]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.87) (envelope-from ) id 1cZFzV-0007ej-Pz for rsgb_lf_group@blacksheep.org; Thu, 02 Feb 2017 11:55:56 +0000 Received: from fwd18.aul.t-online.de (fwd18.aul.t-online.de [172.20.26.244]) by mailout09.t-online.de (Postfix) with SMTP id 5C34A425483D for ; Thu, 2 Feb 2017 12:55:52 +0100 (CET) Received: from spica14.aul.t-online.de (rCry-OZUwh+01znqdgKqu1mGVRb2EmWFaMI6ocXpjOdnRtzI++yH1rgsH2xlGTjg0k@[172.20.102.125]) by fwd18.aul.t-online.de with esmtp id 1cZFzU-0CgivI0; Thu, 2 Feb 2017 12:55:52 +0100 Received: from 31.16.171.193:62513 by cmpweb28.aul.t-online.de with HTTP/1.1 (Lisa V4-7-7-0.13873 on API V5-4-0-0) Received: from 172.20.102.124:20726 by spica14.aul.t-online.de:8080; Thu, 2 Feb 2017 12:55:52 +0100 (MET) Date: Thu, 2 Feb 2017 12:55:52 +0100 (MET) From: "dj8wx@t-online.de" To: "rsgb_lf_group@blacksheep.org" Message-ID: <1486036552046.4110166.821db8a52c88abf063570b251a71bef4a0b242ae@spica.telekom.de> In-Reply-To: <159fe9de80d-51d4-4f0@webprd-a86.mail.aol.com> References: <5893075D.3070207@posteo.de> <159fe9de80d-51d4-4f0@webprd-a86.mail.aol.com> MIME-Version: 1.0 Importance: normal X-MSMail-Priority: normal X-Priority: 3 X-UMS: email X-ID: rCry-OZUwh+01znqdgKqu1mGVRb2EmWFaMI6ocXpjOdnRtzI++yH1rgsH2xlGTjg0k@t-dialin.net X-TOI-MSGID: 8afdee8b-9381-46ec-a61c-dbf5b5069873 X-Scan-Signature: 29f208b223fe7a2cb359508e38e2ea2d Subject: AW: VLF: Uwe on the air! Content-Type: multipart/alternative; boundary="----=_Part_3853853_2128890871.1486036552054" X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-Scanned-By: MIMEDefang 2.75 Status: O X-Status: X-Keywords: X-UID: 10448 ------=_Part_3853853_2128890871.1486036552054 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Stefan, Paul, Markus, thanks fort he reports and the hints. =20 yes,Stefan, the reason for malfunction was a too weak driver output signal.= =20 Now the antenna current could be up to 800mA. but the induction into fences= =20 etc does allow max 500mA to avoid neighbors yell when toutching his=20 railings. =20 today I will try to finish the new rx 10m-circumference-loop. so the TX=20 will be switched off. Any EbNaut transmission later. =20 Uwe/dj8wx =20 =20 =20 =20 -----Original-Nachricht----- Betreff: Re: VLF: Uwe on the air! Datum: 2017-02-02T12:39:19+0100 Von: "Markus Vester" An: "rsgb_lf_group@blacksheep.org" =20 =20 =20 There's also a peak and a trace on 8269.995 Hz in the bottom window of my= =20 VLF grabber (~ 10 dB SNR in 63 uHz). Uwe, I'm glad to see your signal=20 again! Unfortunately my receiver seems to be many dB worse that Stefan's... Best 73, Markus (DF6NM) -----Urspr=C3=BCngliche Mitteilung----- Von: DK7FC An: rsgb_lf_group Verschickt: Do, 2. Feb 2017 11:19 Betreff: VLF: Uwe on the air! Hi Uwe, VLF, Your signal is very strong today, currently 15 dB SNR in 424 uHz! http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html I bet you are trying to run more antenna current to leave a trace at RN3AUS in the next session!? :-) It would be interesting to see another EbNaut message from you. Maybe Markus can decode it as well. Or you can try to use a message longer than 5 characters, which is the longest message between us so far. Use Paul's calculator. With the information 15 dB in 424 uHz you can fill the upper two fields on the page and then vary the message length and symbol length. For example: http://abelian.org/ebnaut/calc.php?sndb=3D15&snbws=3D0.000424&snmps=3D&code= =3D8K19&sp=3D30&crc=3D16&nc=3D12&submit=3DCalculate Theoretically this should give a decode even if the SNR falls by 6 dB. With 12 characters you could send your callsign and the locator! Meanwhile i'm transmitting since 35 hours a stable carrier on 2970.000000 Hz :-) 73, Stefan =EF=BB=BF
=20 Gesendet mit Telekom Mail - kostenlos= =20 und sicher f=C3=BCr alle! ------=_Part_3853853_2128890871.1486036552054 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable


<= /span>thanks fort he reports and the hints.

 

yes,Stefan, the reason for malfunctio= n was a too weak driver output signal. Now the antenna current could be up = to 800mA. but the induction into fences etc does allow max 500mA to avoid n= eighbors yell when toutching his railings.

 

today I will try to finish the new rx= 10m-circumference-loop. so the TX will be switched off.

Any EbNaut transmission later.

 

Uwe/dj8wx

 

 

 

 

-----Original-Nachricht-----

Betreff: Re: VLF: Uwe on the air!

Datum: 2017-02-02T12:39:19+0100

Von: "Markus Vester" <markusvester@aol.com>=

An: "rsgb_lf_group@blacksheep.org" <rsgb_lf_gr= oup@blacksheep.org>

 

 

 

There's also a peak and a trace on 8269.995 Hz in the= bottom window of my VLF grabber (~ 10 dB SNR in 63 uHz). Uwe, I'm glad to = see your signal again! Unfortunately my receiver seems to be many dB worse = that Stefan's...

Best 73,
Markus (DF6NM)

-----Ur= sprüngliche Mitteilung-----
Von: DK7FC <selberdenken@posteo.d= e>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Vers= chickt: Do, 2. Feb 2017 11:19
Betreff: VLF: Uwe on the air!

Hi Uwe, VLF,

Your signal is very strong today, currently 15 dB S= NR in 424 uHz!
http://www.iup.uni-heidelberg.de/schaefer_vlf/D= K7FC_VLF_Grabber2.html

I bet you are trying to run more ante= nna current to leave a trace at
RN3AUS in the next session!? :-)

It would be interesting to see another EbNaut message from you. Mayb= e
Markus can decode it as well. Or you can try to use a message longe= r
than 5 characters, which is the longest message between us so far.<= br />
Use Paul's calculator. With the information 15 dB in 424 uHz you= can
fill the upper two fields on the page and then vary the message = length
and symbol length. For example:
http:/= /abelian.org/ebnaut/calc.php?sndb=3D15&snbws=3D0.000424&snmps=3D&am= p;code=3D8K19&sp=3D30&crc=3D16&nc=3D12&submit=3DCalculate
Theoretically this should give a decode even if the SNR falls by 6 = dB.
With 12 characters you could send your callsign and the locator!
Meanwhile i'm transmitting since 35 hours a stable carrier on 2970.000000 Hz :-)

73, Stefan

=EF=BB=BF

 
Gesendet mit Telekom Mail - kostenlos und sicher f=C3=BCr alle! ------=_Part_3853853_2128890871.1486036552054--