Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=5.0 tests=FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,HTML_MESSAGE,RCVD_IN_DNSWL_MED, SPF_PASS,T_DKIM_INVALID 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 v3ULw71R000414 for ; Sun, 30 Apr 2017 23:58:08 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1d4wmG-00083v-KZ for rs_out_1@blacksheep.org; Sun, 30 Apr 2017 22:53:12 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1d4wmF-00083m-JZ for rsgb_lf_group@blacksheep.org; Sun, 30 Apr 2017 22:53:11 +0100 Received: from omr-m005e.mx.aol.com ([204.29.186.5]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.89) (envelope-from ) id 1d4wmB-0003QZ-Pu for rsgb_lf_group@blacksheep.org; Sun, 30 Apr 2017 22:53:10 +0100 Received: from mtaomg-aam02.mx.aol.com (mtaomg-aam02.mx.aol.com [172.27.19.148]) by omr-m005e.mx.aol.com (Outbound Mail Relay) with ESMTP id C986D38000A2 for ; Sun, 30 Apr 2017 17:53:04 -0400 (EDT) Received: from core-acb01f.mail.aol.com (core-acb01.mail.aol.com [172.27.24.1]) by mtaomg-aam02.mx.aol.com (OMAG/Core Interface) with ESMTP id 9BB7438000083 for ; Sun, 30 Apr 2017 17:52:59 -0400 (EDT) Received: from 188.192.95.60 by webprd-m80.mail.aol.com (10.74.71.90) with HTTP (WebMailUI); Sun, 30 Apr 2017 17:52:59 -0400 Date: Sun, 30 Apr 2017 17:52:59 -0400 From: Markus Vester To: rsgb_lf_group@blacksheep.org Message-Id: <15bc0da3c21-4d33-fee7@webprd-m80.mail.aol.com> In-Reply-To: <15bc05f26c9-4d33-fa96@webprd-m80.mail.aol.com> MIME-Version: 1.0 X-MB-Message-Source: WebUI X-MB-Message-Type: User X-Mailer: JAS STD X-Originating-IP: [188.192.95.60] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20150623; t=1493589184; bh=8F70vnycDUIvGZNpj0j6x6TisT7BJ+xfK1+GrCWtwaI=; h=From:To:Subject:Message-Id:Date:MIME-Version:Content-Type; b=XJjG35Ip28BJmYETvnXK4zrrQt6U/mDQiCEG69pQhOuOy/PrRrYOB9DpW1IfTRLph obyY08eucxXu1ORyn3B1xrwpfROlJAm5y+/q6Fp8TB10PCNehwKIRL3B30Uk3jpAFP VzbT7aKNQj/Xu1RDXJ2UVh7jIv4cm0bOK9CTwYV8= x-aol-sid: 3039ac1b139459065cbb7a86 X-Scan-Signature: 622b0ca3461797caf37867321c193763 Subject: Re: VLF: EbNaut 8270.0025 Hz Content-Type: multipart/alternative; boundary="----=_Part_82092_891463133.1493589179423" 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: RO X-Status: X-Keywords: X-UID: 11538 ------=_Part_82092_891463133.1493589179423 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Carrier off at 21:30 UT.=20 73, Markus (DF6NM) -----Urspr=C3=BCngliche Mitteilung-----=20 Von: Markus Vester An: rsgb_lf_group Verschickt: So, 30. Apr 2017 21:38 Betreff: Re: VLF: EbNaut 8270.0025 Hz I had started the carrier at 11 UT, and have left it on after the EbNaut se= quence (hopefully until 22 UT). As expected, the signal level is fairly con= stant in Amberg, but it has been steadily increasing during the afternoon i= n Heidelberg, So it looks like we are again seeing the "midday minimum" eff= ect from antiphase skywave. Interestingly, it appears to be more pronounced= than during Stefan's long carrier transmission on Jan 28/29. I can think o= f three possible reasons: 1. My signal is weaker and closer to the noise, so a shallow minimum might = simply be more conspicuous, 2. Increased solar elevation in April versus midwinter produces a lower and= sharper D-layer boundary. This would strengthen the reflection, and the sh= orter delay might bring it closer to antiphase, 3. Stefan is receiving on a loop, which should be 3 dB more sensitive to 45= =C2=B0 skywave than my E-field receive antenna. Best 73, Markus =20 =20 -----Urspr=C3=BCngliche Mitteilung-----=20 Von: Markus Vester An: rsgb_lf_group Verschickt: So, 30. Apr 2017 15:48 Betreff: VLF: EbNaut 8270.0025 Hz Another short EbNaut test for DL0AO:=20 Frequency 8270.0025 Hz (same as preceding carrier), 5 characters 8K19A, 5 second symbols, start 17-04-30 14:00:00, end 14:42:40. See http://df6nm.bplaced.net/dl0ao/VLFgrabber/vlfgrabber_dl0ao.htm Best 73, Markus (DF6NM) ------=_Part_82092_891463133.1493589179423 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Carrier off at 21:30 UT.
73, Markus (DF6NM)
=
-----Urspr=C3=BCngliche Mitteilung-----
Von: Markus Vester <mark= usvester@aol.com>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org&= gt;
Verschickt: So, 30. Apr 2017 21:38
Betreff: Re: VLF: EbNaut 8270.= 0025 Hz

I had started the ca= rrier at 11 UT, and have left it on after the EbNaut sequence (hopefully un= til 22 UT). As expected, the signal level is fairly constant in Amberg= , but it has been steadily increasing during the afternoon in Hei= delberg, So it looks like we are again seeing the "midday mi= nimum" effect from antiphase skywave. Interestingly, it appears to&nbs= p;be more pronounced than during Stefan's long carrier transmissi= on on Jan 28/29. I can think of three possible reasons:

1. My s= ignal is weaker and closer to the noise, so a shallow minimum might simply = be more conspicuous,
2. Increased solar elevation in April versus midwin= ter produces a lower and sharper D-layer boundary. This would strength= en the reflection, and the shorter delay might bring it closer to antiphase= ,
3. Stefan is receiving on a loop, which should be 3 dB more sensi= tive to 45=C2=B0 skywave than my E-field receive antenna.

Best 73,Markus  

 
-----Urspr=C3=BCngliche Mitteilung--= ---
Von: Markus Vester <markusvester@aol.com>
A= n: rsgb_lf_group <rsgb_lf_group@blacksheep.org>= ;
Verschickt: So, 30. Apr 2017 15:48
Betreff: VLF: EbNaut 8270.0025 H= z

Anot= her short EbNaut test for DL0AO:

Frequency 8270.0025 Hz (same as pr= eceding carrier),
5 characters 8K19A,
5 second symbols,
start 17-0= 4-30 14:00:00, end 14:42:40.

See http://df6nm.bplaced.net/dl0ao/VLFgrabber/vlfgrabber_dl0ao.htm

Best 73,
Markus (DF6NM)



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