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: wuwien: mailn 1290; 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 v7PDV8f8024173 for ; Fri, 25 Aug 2017 15:31:11 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1dlEcH-0007nx-Sv for rs_out_1@blacksheep.org; Fri, 25 Aug 2017 14:25:41 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1dlEcH-0007no-ES for rsgb_lf_group@blacksheep.org; Fri, 25 Aug 2017 14:25:41 +0100 Received: from omr-m018e.mx.aol.com ([204.29.186.17]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.89) (envelope-from ) id 1dlEcB-0001wu-N0 for rsgb_lf_group@blacksheep.org; Fri, 25 Aug 2017 14:25:40 +0100 Received: from mtaomg-aae01.mx.aol.com (mtaomg-aae01.mx.aol.com [172.27.1.99]) by omr-m018e.mx.aol.com (Outbound Mail Relay) with ESMTP id 756B83800084 for ; Fri, 25 Aug 2017 09:25:31 -0400 (EDT) Received: from core-acx05h.mail.aol.com (core-acx05.mail.aol.com [10.76.14.46]) by mtaomg-aae01.mx.aol.com (OMAG/Core Interface) with ESMTP id 0261F38000082 for ; Fri, 25 Aug 2017 09:25:31 -0400 (EDT) Received: from 188.192.44.165 by webjas-vac137.srv.aolmail.net (10.96.19.140) with HTTP (WebMailUI); Fri, 25 Aug 2017 09:25:30 -0400 Date: Fri, 25 Aug 2017 09:25:30 -0400 From: Markus Vester To: rsgb_lf_group@blacksheep.org Message-Id: <15e1991abae-c08-d02c@webjas-vac137.srv.aolmail.net> In-Reply-To: <599FF2CE.50507@posteo.de> 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 X-AOL-VSS-INFO: 5800.7501/120346 X-AOL-VSS-CODE: clean DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20150623; t=1503667531; bh=dfpffxyjQHk4Y7rzPDt/8y8OMAfdYqH1MH9G33CUdU4=; h=From:To:Subject:Message-Id:Date:MIME-Version:Content-Type; b=UxSgSqJDJkmHh58wEWmTawDK+OK8zsf5gB88X/8bxj0R0RymFcWwIHf0FdhJux+42 4Dd6Vl4LBQ84fo9kB2wGxnd95hb6SdMyOWkeF9GgaaoZXLricbfh+jAlwDyOkuuJpQ AfUJVHms+Rcyxji3QK/ekRFz14T0kV8xNY39BiPU= x-aol-sid: 3039ac1b016359a0254b4880 X-Scan-Signature: b16f5c37bc0c21b41453c2ac5e65973c Subject: Re: VLF: Carrier on 4470.005 Hz! - EbNaut test Content-Type: multipart/mixed; boundary="----=_Part_64754_1327021460.1503667530670" 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: 12457 ------=_Part_64754_1327021460.1503667530670 Content-Type: multipart/alternative; boundary="----=_Part_64753_886516575.1503667530670" ------=_Part_64753_886516575.1503667530670 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable 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_64753_886516575.1503667530670 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Hi Stefan,

no decodes from yesterday Aug, 24, lik= ely due to the much increased QRN already 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 t= he display range to show a slot around 4469.988333 Hz, i.e. the g= ap 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  

-----Urspr=C3=BCngliche Mitte= ilung-----
Von: DK7FC <selberdenken@posteo.de>
An: rsgb_lf_gro= up <rsgb_lf_group@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/DK7FC_VLF_G= rabber2.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_64753_886516575.1503667530670-- ------=_Part_64754_1327021460.1503667530670 Content-Type: text/plain; charset=us-ascii; name=sum_EW_23-24-log.txt Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=sum_EW_23-24-log.txt ebnaut-rx V0.7 input file sum_EW_23-24.wav sample rate 0.152413 per second rx frequency 4470 file start time 2017-08-23 14:35:59.440 polynomial 16K21A crc size 6 number of chars 5 block size 36 symbol period 60.000 number of symbols 896 list length 100 start offset 48266.600 freq offset 0.005000 cores 2 skipped 48263.757894 seconds to start initial reference phase -38.1 --------------------------------------------- found L9;G& list rank 53 reference phase 180 180 180 180 carrier S/N 13.95 dB in 18.6 uHz, -33.36 dB in 1Hz, -67.34 dB in 2.5kHz carrier Es/N0 -15.57 dB carrier Eb/N0 -0.60 dB info bit period 1886.32 seconds symbol error rate 382/896 = 42.634 % Es/N0 from symbol errors -17.6 dB Eb/N0 from symbol errors -2.6 dB Shannon capacity 2.4 bits/hour Shannon efficiency 80.7 % symbols file sum_EW_23-24-symbols.csv elapsed 8 seconds --------------------------------------------- found PEACE list rank 0 reference phase -60 -60 -60 -60 carrier S/N 14.51 dB in 18.6 uHz, -32.80 dB in 1Hz, -66.77 dB in 2.5kHz carrier Es/N0 -15.01 dB carrier Eb/N0 -0.04 dB info bit period 1886.32 seconds symbol error rate 353/896 = 39.397 % Es/N0 from symbol errors -14.4 dB Eb/N0 from symbol errors 0.6 dB Shannon capacity 2.7 bits/hour Shannon efficiency 71.0 % symbols file sum_EW_23-24-symbols.csv elapsed 32 seconds --------------------------------------------- found L9;G& list rank 11 reference phase 150 120 180 150 carrier S/N 14.81 dB in 18.6 uHz, -32.50 dB in 1Hz, -66.48 dB in 2.5kHz carrier Es/N0 -14.72 dB carrier Eb/N0 0.26 dB info bit period 1886.32 seconds symbol error rate 377/896 = 42.076 % Es/N0 from symbol errors -16.9 dB Eb/N0 from symbol errors -1.9 dB Shannon capacity 2.9 bits/hour Shannon efficiency 66.4 % symbols file sum_EW_23-24-symbols.csv elapsed 250 seconds ------=_Part_64754_1327021460.1503667530670--