Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=0.5 required=5.0 tests=FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,HTML_MESSAGE,RCVD_IN_SORBS_SPAM, SPF_PASS,T_DKIM_INVALID,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 X-Spam-DCC: EATSERVER: mailn 1166; 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+deb8u2) with ESMTP id v7Q9tswb025927 for ; Sat, 26 Aug 2017 11:55:56 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1dlXff-0000uj-4m for rs_out_1@blacksheep.org; Sat, 26 Aug 2017 10:46:27 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1dlXfe-0000ua-6d for rsgb_lf_group@blacksheep.org; Sat, 26 Aug 2017 10:46:26 +0100 Received: from omr-m001e.mx.aol.com ([204.29.186.1]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.89) (envelope-from ) id 1dlXfY-0004WB-Mq for rsgb_lf_group@blacksheep.org; Sat, 26 Aug 2017 10:46:24 +0100 Received: from mtaomg-mae01.mx.aol.com (mtaomg-mae01.mx.aol.com [172.26.254.143]) by omr-m001e.mx.aol.com (Outbound Mail Relay) with ESMTP id AF11D3800091 for ; Sat, 26 Aug 2017 05:46:17 -0400 (EDT) Received: from core-acx05h.mail.aol.com (core-acx05.mail.aol.com [10.76.14.46]) by mtaomg-mae01.mx.aol.com (OMAG/Core Interface) with ESMTP id 6480E38000082 for ; Sat, 26 Aug 2017 05:46:17 -0400 (EDT) Received: from 188.192.44.165 by webjas-vad144.srv.aolmail.net (10.96.35.147) with HTTP (WebMailUI); Sat, 26 Aug 2017 05:46:16 -0400 Date: Sat, 26 Aug 2017 05:46:17 -0400 From: Markus Vester To: rsgb_lf_group@blacksheep.org Message-Id: <15e1def4f0a-c09-fe65@webjas-vad144.srv.aolmail.net> In-Reply-To: <15e1991abae-c08-d02c@webjas-vac137.srv.aolmail.net> MIME-Version: 1.0 X-MB-Message-Source: WebUI X-MB-Message-Type: User X-Mailer: JAS STD X-Originating-IP: [188.192.44.165] x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20150623; t=1503740777; bh=e+VKEslSYs4a0pXv2ZS7hsHSskpftJKU6nn5Ap3k6Xs=; h=From:To:Subject:Message-Id:Date:MIME-Version:Content-Type; b=Jq4Bjc/Om28YN+zEBabJI3RugHTdNeiNgBSvkM2q43r3LSYMhVDF7DBo6Q0V9NYPA RupntMXQBinmvysuIDivgm01c4saaNqJUb5ucRsRUM76WShosLFemD2HnYTvIL+P3i ECg6I1Q0qytAuBigAbqa+6E5c7EV8B8mxz5wLLpg= x-aol-sid: 3039ac1afe8f59a143694837 X-Scan-Signature: c1dcf088149efa0360827745859da381 Subject: VLF: 4470.005 Hz + 4469.9883333 Hz Content-Type: multipart/alternative; boundary="----=_Part_78138_291359895.1503740776202" 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: 12463 ------=_Part_78138_291359895.1503740776202 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Started a carrier on 4469.9883333 Hz since 9:30, antenna current 0.17 A. Best 73,=20 Markus (DF6NM) -----Urspr=C3=BCngliche Mitteilung-----=20 Von: Markus Vester An: rsgb_lf_group Verschickt: Fr, 25. Aug 2017 15:25 Betreff: Re: VLF: Carrier on 4470.005 Hz! - EbNaut test Hi Stefan, no decodes from yesterday Aug, 24, likely due to the much increased QRN alr= eady in the afternoon. I also tried to combine 23rd and 24th and still foun= d the correct decode in the list, but with deteriorated SNR. Thanks for starting the slow 28 uHz window in Heidelberg! If you like, you = could perhaps shift or split the display range to show a slot around 4469.9= 88333 Hz, i.e. the gap 16.667 mHz below your EbNaut center frequency. Howev= er I won't transmit today, due to high QRN background and predicted thunder= storms tonight. Best 73, Markus =20 -----Urspr=C3=BCngliche Mitteilung-----=20 Von: DK7FC An: rsgb_lf_group Verschickt: Fr, 25. Aug 2017 11:52 Betreff: Re: VLF: Carrier on 4470.005 Hz! - EbNaut test Hello Markus, VLF, Now there is a 28 uHz Spectrogram on my grabber, http://www.iup.uni-heidel= berg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html Scroll rate is 2 hours per pixel. You can see my own carrier on 4470.005 Hz which is running between the EbN= aut messages. Currently the EbNaut message is running for the 3rd time. Yesterday it was quite noisy again. I'm curious to see if Paul can decode = the message with 3 stacked days. I find that most fascinating! Stacking daily transmissions is only possibl= e on VLF (or ULF/ELF probably?). So everyone could try to transmit there, e= ven with an 'average' LF transmit antenna. The coil and the stable frequenc= y generation seems to be the problem however. Actually we need some more pu= blic relations, more spread information and motivation for potential VLF ne= wcomers. As soon as a critical number of TX and RX stations has been overco= me, it can be a self-running movement. The RX capabilities of DL0AO are cer= tainly a new valuable contribution to the RX sites. As soon as the message is decoded on Pauls side, i want to rise the antenn= a current to 170 mA (~ + 1 dB) and try a longer message, maybe 20 character= s or so. There is enough time to run the experiment now... 73, Stefan Am 21.08.2017 15:06, schrieb Markus Vester:=20 Thanks Stefan! Distance between DF6NM and DL0AO is 48 km. Yes a slow window from your tree might possibly receive my signal on 4470,= albeit marginally, with perhaps 10 to 12 dB in 31 uHz. Unfortunately I won= 't be able to do long daytime transmissions before the next weekend. Best 73, Markus ------=_Part_78138_291359895.1503740776202 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Started a carrier on 4469.9883333 Hz since 9:30, antenna= current 0.17 A.

Best 73,
Markus (DF6NM)

-----Urspr=C3=BC= ngliche Mitteilung-----
Von: Markus Vester <markusvester@aol.com>=
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: F= r, 25. Aug 2017 15:25
Betreff: Re: VLF: Carrier on 4470.005 Hz! - EbNaut= test

Hi Stefan,

no= decodes from yesterday Aug, 24, likely due to the much increased QRN alrea= dy in the afternoon. I also tried to combine 23rd and 24th and still found = the correct decode in the list, but with deteriorated SNR.
Thanks for starting the slow 28 uHz window in Heidelberg! If you like= , you could perhaps shift or split the display range to show a slot ar= ound 4469.988333 Hz, i.e. the gap 16.667 mHz below your EbNaut center = frequency. However I won't transmit today, due to high QRN background = and predicted thunderstorms tonight.

Best 73,
Markus  <= br>
-----Urspr=C3=BCngliche Mitteilung-----
Von: DK7FC <selberdenken@posteo.de>
An: rs= gb_lf_group <rsgb_lf_gro= up@blacksheep.org>
Verschickt: Fr, 25. Aug 2017 11:52
Betreff:= Re: VLF: Carrier on 4470.005 Hz! - EbNaut test

Hello Markus, VLF,

Now there is a 28 uHz Spectrogram on my grabber, http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7= FC_VLF_Grabber2.html
Scroll rate is 2 hours per pixel.
You can see my own carrier on 4470.005 Hz which is running between the EbNaut messages.
Currently the EbNaut message is running for the 3rd time.
Yesterday it was quite noisy again. I'm curious to see if Paul can decode the message with 3 stacked days.
I find that most fascinating! Stacking daily transmissions is only possible on VLF (or ULF/ELF probably?). So everyone could try to transmit there, even with an 'average' LF transmit antenna. The coil and the stable frequency generation seems to be the problem however. Actually we need some more public relations, more spread information and motivation for potential VLF newcomers. As soon as a critical number of TX and RX stations has been overcome, it can be a self-running movement. The RX capabilities of DL0AO are certainly a new valuable contribution to the RX sites.

As soon as the message is decoded on Pauls side, i want to rise the antenna current to 170 mA (~ + 1 dB) and try a longer message, maybe 20 characters or so. There is enough time to run the experiment now...

73, Stefan

Am 21.08.2017 15:06, schrieb Markus Vester:
Thanks Stefan! Distance between DF6NM and DL0AO is 48 km.

Yes a slow window from your tree might possibly receive= my signal on 4470, albeit marginally, with perhaps 10 to 12 dB in 31 uHz. Unfortunately I won't be able to do long daytime transmissions before the next weekend.

Best 73,
Markus

------=_Part_78138_291359895.1503740776202--