Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by klubnl.pl (8.14.4/8.14.4/Debian-8+deb8u2) with ESMTP id w0DKQgw0010486 for ; Sat, 13 Jan 2018 21:26:43 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1eaSHw-0000rJ-6V for rs_out_1@blacksheep.org; Sat, 13 Jan 2018 20:20:24 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1eaSHo-0000r8-9G for rsgb_lf_group@blacksheep.org; Sat, 13 Jan 2018 20:20:16 +0000 Received: from mail-qk0-x236.google.com ([2607:f8b0:400d:c09::236]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1eaSHk-0004aw-Va for rsgb_lf_group@blacksheep.org; Sat, 13 Jan 2018 20:20:14 +0000 Received: by mail-qk0-x236.google.com with SMTP id i141so12762710qke.0 for ; Sat, 13 Jan 2018 12:20:12 -0800 (PST) X-DKIM-Result: Domain=gmail.com Result=Good and Known Domain DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=TkFIT7r0cd8jrvsVINFKM0mb5rEcsO7ZlOPxsmXtWRI=; b=oKCAhfGvp3jpTRiAOs8v/wPDENJeHUXvV2bmeEOrXg44vqJDc33Pt0giF8QBhO7Tu3 1VUYFibo6/BdqoISXV/7wAzVJUDrzV5k4B/pwXFoZuxNXMMaIZP7MblJc9guA/OOg2OL H5+Q+zzzhtOYfgxjaP+4FEguSVOwbZxXj3YibUSzvRlwXSJzTV8t2lU7OfCbik0DDz8o APw7ZR0Txa92onZ4Bo0U2Nc09Ql83AUV+06K+xrNPKa5VUSQSy18x3S4GdBQF9Qkfs+7 F5ADglgdYDNIsSXkRigNeRojLhYPTUKFe1qY6WO17XFSvfE5j00BMklx6erH4UV3pG2+ ZRgw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=TkFIT7r0cd8jrvsVINFKM0mb5rEcsO7ZlOPxsmXtWRI=; b=tfujy2MbUQvHCF0IG4ppInau76YM1K/hYSUKAUaWRDDh6b6jywnq5v6kGzMmFt8oju fPtN4QTZ6GI+WpBLBz3N65+rixmr/3Y43IcOHh9C09DFHq2+4m8XHV9DGFnW+kGU0WwR QLksObidWt2+augEQNqtv87nexdow39L/63ylr6HJSgVg3yPc7Dpc4SHUwH3n04/GITV r9HQ+NkbhirzmNh/O3416+VawB05cWsMSj+kaAG0wc56ojVvWwkDzSCsUAqN5j5FPLCM w1Fc6Z19pMQTokAdb11+DWnt1h6b9uw99p5cKfUIOV7Frw7r/hBmEiU4JstPejpcWJTz ZF6g== X-Gm-Message-State: AKwxytdEmpa+cumhK1/97WHw1EW+J24JPiWqQiGezY1KukBIV49tATR7 z0j3n8IC40TRoHKDmoemyNFiLvabmZ2xYnyGx8o= X-Google-Smtp-Source: ACJfBotGpUprhw0tBQ98JNXdrwZKt/p2pYrEMU8Ujo4AWwieoKvxY/ZC/h3Guy2GBsEq7hL/RR/xUkcD6Xa1133Oru4= X-Received: by 10.55.23.164 with SMTP id 36mr21557097qkx.244.1515874810482; Sat, 13 Jan 2018 12:20:10 -0800 (PST) MIME-Version: 1.0 Received: by 10.140.25.140 with HTTP; Sat, 13 Jan 2018 12:20:09 -0800 (PST) Received: by 10.140.25.140 with HTTP; Sat, 13 Jan 2018 12:20:09 -0800 (PST) In-Reply-To: <5A562152.7030404@posteo.de> References: <160d0cc9190-1720-7a399@webjas-vaa200.srv.aolmail.net> <5A54E3EC.30107@posteo.de> <9fb65a40-484e-2a16-152e-36428d110b79@abelian.org> <5A562152.7030404@posteo.de> From: Riccardo Zoli Date: Sat, 13 Jan 2018 21:20:09 +0100 Message-ID: To: LF Group X-Spam-Score: 0.3 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Hi Stefan, Paul, VLF. Thanks for nice report, dear Stefan. Great performance of your "tree system"! Sorry for delayed reply; I rebuilt the top hat, with isolation improvements, damaged by corona effect during last transmission (it was a foggy night). [...] Content analysis details: (0.3 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.2 FREEMAIL_ENVFROM_END_DIGIT Envelope-from freemail username ends in digit (riccardozoli80[at]gmail.com) 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (riccardozoli80[at]gmail.com) 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 13abe497adcf17a4e25c5e2a2ff79111 Subject: Re: LF: EbNaut at 8270.01953125 Content-Type: multipart/alternative; boundary="001a11473c269a540d0562ae1b1c" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.6 required=5.0 tests=FROM_ENDS_IN_NUMS,HTML_20_30, HTML_MESSAGE,SUBJ_HAS_UNIQ_ID autolearn=no version=2.63 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 --001a11473c269a540d0562ae1b1c Content-Type: text/plain; charset="UTF-8" Hi Stefan, Paul, VLF. Thanks for nice report, dear Stefan. Great performance of your "tree system"! Sorry for delayed reply; I rebuilt the top hat, with isolation improvements, damaged by corona effect during last transmission (it was a foggy night). Another attempt this night: start time 18:30 UTC, same parameters, 550mA. Thanks, as usual, for reports. All the best 73 de Riccardo IW4DXW Il 10/Gen/2018 15:25, "DK7FC" ha scritto: Hello Riccardo, I got you. What a big signal! My congrats to your TX station! Since i missed some weeks, i'm a nit late now. Meanwhile almost a boring distance for you? ;-) It is my frist VLF reception from Italy, very nice. The other way was between me and Renato Romero in 2010. The message and signal strength seems to be quite clear, i think i don't need to ask for confirmation :-) A capture is in attachment. I got a slightly better Eb/N0 when using a small frequency offset. Good luck to reach Alex (or did you already? I lost the overview). And maybe Jay is lurking? 73, Stefan Am 09.01.2018 20:15, schrieb Riccardo Zoli: Hi Paul, Stefan, Andy, Markus....VLF My specified QRG (printed with all decimals) is obviously theoretical. It permits, as Paul well explained, to achieve in days maximum reference phase precision for RX stations. The value is obtained by a simple calculation: my GPSDO is tuned at 16384.000 kHz and clocking a DDS programmed with a tuning dword = 8671744. DDS output is finally divided by 4 (SDR quadrature generator). ((16384000 / 2^32) * 8671744) / 4 = *8270.01953125* Thanks for reports. This night, 5th attempt. Same parameters, start time 18:30 UTC. All the best 73 de Riccardo IW4DXW --001a11473c269a540d0562ae1b1c Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

Hi Stefan, = Paul, VLF. =C2=A0 =C2=A0=C2=A0

Thanks for nice report, dear Stefan.
Great pe= rformance of your "tree system"!
Sorry for= delayed reply; I rebuilt the top hat, with isolation improvements, damaged= by corona effect during last transmission (it was a foggy night).

Another attempt this night: star= t time 18:30 UTC, same parameters, 550mA.

=
Thanks, as usual, for reports.

All the best

73 de Riccardo IW4DXW


Il 10/= Gen/2018 15:25, "DK7FC" <selberdenken@posteo.de> ha scritto:
=20 =20
Hello Riccardo,

I got you. What a big signal! My congrats to your TX station! Since i missed some weeks, i'm a nit late now. Meanwhile almost a boring distance for you? ;-)
It is my frist VLF reception from Italy, very nice. The other way was between me and Renato Romero in 2010.
The message and signal strength seems to be quite clear, i think i don't need to ask for confirmation :-)
A capture is in attachment. I got a slightly better Eb/N0 when using a small frequency offset.
Good luck to reach Alex (or did you already? I lost the overview). And maybe Jay is lurking?

73, Stefan




Am 09.01.2018 20:15, schrieb Riccardo Zoli:

Hi Paul, Stefan, Andy, Markus....VLF

My specified QRG (printed with all decimals) is obviously theoretical. It permits, as Paul well explained, to achieve in days maximum reference phase precision for RX stations.
The value is obtained by a simple calculation:

my GPSDO is tuned at 16384.000 kHz and clocking a DDS programmed with a tuning dword =3D 8671744. DDS output is finally divided by 4 (SDR quadrature generator).

((16384000 / 2^32) * 8671744) / 4 =3D
8270.01953125

Thanks for reports.
This night, 5th attempt.
Same parameters, start time 18:30 UTC.


All the best


73 de Riccardo IW4DXW


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