Return-Path: X-Spam-DCC: paranoid 1290; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-1.4 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, NO_REAL_NAME,SPF_PASS autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id u4NEx9ie026919 for ; Mon, 23 May 2016 16:59:09 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1b4rEZ-0003Rb-0l for rs_out_1@blacksheep.org; Mon, 23 May 2016 15:53:31 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1b4rEY-0003RS-D5 for rsgb_lf_group@blacksheep.org; Mon, 23 May 2016 15:53:30 +0100 Received: from resqmta-ch2-07v.sys.comcast.net ([2001:558:fe21:29:69:252:207:39]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.87) (envelope-from ) id 1b4rEV-00047Z-OR for rsgb_lf_group@blacksheep.org; Mon, 23 May 2016 15:53:29 +0100 Received: from resomta-ch2-19v.sys.comcast.net ([69.252.207.115]) by comcast with SMTP id 4rE2bV4uRp1Be4rESbCa0K; Mon, 23 May 2016 14:53:24 +0000 X-DKIM-Result: Domain=comcast.net Result=Signature OK DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=comcast.net; s=q20140121; t=1464015204; bh=c1mD7I1x7Vkyw3fXKnVLJTibRLOLiMhL4UEu0A3JMl0=; h=Received:Received:From:To:Subject:Date:Message-ID:MIME-Version: Content-Type; b=lLOoVejQEgm57tjwxAWMQZnGaDc5xxOheBKXsiIAfvi21AGYqXH5GCxsRa62u0M2M Ov6KVH31j56LiobBA7vJWwFC13vYuQAe8KoA0DPdZriLXYE5BKKLA3zSEH1KauvuCE scT+LrfsazQYsyGc3sEJRoNO6SDjs0GmRtMymQeVUFIflRe+M6nQRV6JxO2H+KRQq3 DulA7RUAUCLgvQEqN5BBsY27RmsEkngkY5djZ19qZpEyayB9zj5qV8aMVVYjXo06v7 4RjUq8RLUDC1nC7fChE4pEROS7AcQDOLf6ny4X8YIeF4DnNz9otkgJBwpFa86FDDQu oLZn8Tn5s3H3g== Received: from Owner ([IPv6:2601:141:0:bec5:4437:be53:7253:cd54]) by resomta-ch2-19v.sys.comcast.net with comcast id xqtP1s0095GqTwQ01qtPyE; Mon, 23 May 2016 14:53:24 +0000 From: To: References: <154ce50bf7a-15f0-3cdb@webprd-a70.mail.aol.com> <573F94B7.10906@posteo.de> <57406B5F.8010707@posteo.de> In-Reply-To: <57406B5F.8010707@posteo.de> Date: Mon, 23 May 2016 10:02:49 -0400 Message-ID: <016201d1b502$d9213810$8b63a830$@comcast.net> MIME-Version: 1.0 X-Mailer: Microsoft Outlook 14.0 Thread-Index: AQJpEwm2NJJGOux3xJnQyNXFNQ4RqgHbRx4fAfsKhKmeeRmKsA== Content-Language: en-us X-Scan-Signature: 046f068074e745d5c60ca47deee9b503 Subject: LF: RE: Crossing the Alps on the 46 km band Content-Type: text/plain; charset="utf-8" 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 2.56 on 10.1.3.11 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by paranoid.lipkowski.org id u4NEx9ie026919 Status: O X-Status: X-Keywords: X-UID: 8151 Stefan, Nice work, I think of 510 km at 6.47 kHz as a new frontier in part because modal (Hollingworth) effects are so sensitive to (everything?) at distances and frequencies in that neighborhood. LWPC and other VLF modeling tools may at best provide a rough estimate of seasonal averages in that realm. Adding the Alps to your configuration makes your result a valuable first for propagation studies, in my opinion. 73, Jim AA5BW -----Original Message----- From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of DK7FC Sent: Saturday, May 21, 2016 10:06 AM To: rsgb_lf_group@blacksheep.org; Renato Romero Subject: VLF: Crossing the Alps on the 46 km band Hi VLF, I managed to leave a trace on Renato Romereos updated VLF dreamers grabber spectrogram at http://www.vlf.it/cumiana/livedata.html. The 510 km path crosses the alps, see http://no.nonsense.ee/qth/map.html?qth=JN34RW&from=jn49ik There is a clear trace at 6470.0000 Hz with an estimated SNR of up to 15 dB. It would be possible to send my call in DFCW-60000 i think. My carrier is running since 21:30 UTC last night and is still on the air. Most likely i will continue to run it until 4 UTC tomorrow, then i'm starting a new EbNaut message. The grabber has proved to run stable and sensitive, an invitation for other stations beeing able to transmit on 8.27 kHz or 6.47 kHz. 73, Stefan