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: 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+deb8u1) with ESMTP id v1J3PXZj013210 for ; Sun, 19 Feb 2017 04:25:35 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1cfI3M-0003sf-Fs for rs_out_1@blacksheep.org; Sun, 19 Feb 2017 03:20:48 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1cfI3L-0003sW-VA for rsgb_lf_group@blacksheep.org; Sun, 19 Feb 2017 03:20:47 +0000 Received: from snt004-omc1s24.hotmail.com ([65.55.90.35]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-SHA384:256) (Exim 4.87) (envelope-from ) id 1cfI3H-0003eD-Al for rsgb_lf_group@blacksheep.org; 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Sun, 19 Feb 2017 03:20:39 +0000 Received: from BN6PR1101MB2066.namprd11.prod.outlook.com (10.152.92.60) by BN3NAM04FT022.mail.protection.outlook.com (10.152.92.174) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id 15.1.904.16 via Frontend Transport; Sun, 19 Feb 2017 03:20:38 +0000 Received: from BN6PR1101MB2066.namprd11.prod.outlook.com ([10.174.112.8]) by BN6PR1101MB2066.namprd11.prod.outlook.com ([10.174.112.8]) with mapi id 15.01.0888.030; Sun, 19 Feb 2017 03:20:38 +0000 From: Laurence KL7 L To: Markus Vester , "rsgb_lf_group@blacksheep.org" Thread-Topic: Tacamo on 17.8 and 29.6 kHz and Jellyfish Thread-Index: AQHSil8kwzx0REIid0OZKv5qTr8f1A== Date: Sun, 19 Feb 2017 03:20:38 +0000 Message-ID: References: ,<15a4f9cc6ad-78ff-16110@webprd-m22.mail.aol.com> In-Reply-To: <15a4f9cc6ad-78ff-16110@webprd-m22.mail.aol.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: aol.com; dkim=none (message not signed) header.d=none;aol.com; 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x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(432015087)(444000031);SRVR:BN3NAM04HT218;BCL:0;PCL:0;RULEID:;SRVR:BN3NAM04HT218; x-forefront-prvs: 02234DBFF6 spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM MIME-Version: 1.0 X-OriginatorOrg: hotmail.com X-MS-Exchange-CrossTenant-originalarrivaltime: 19 Feb 2017 03:20:38.6431 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Internet X-MS-Exchange-CrossTenant-id: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN3NAM04HT218 X-OriginalArrivalTime: 19 Feb 2017 03:20:40.0067 (UTC) FILETIME=[255EED30:01D28A5F] X-Scan-Signature: 913d7a7c91a460d176c89ad756da16f9 Subject: LF: Re: Tacamo on 17.8 and 29.6 kHz and Jellyfish Content-Type: multipart/alternative; boundary="_000_BN6PR1101MB20668F09950D4B21AA01E8A2CF5F0BN6PR1101MB2066_" 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: 10635 --_000_BN6PR1101MB20668F09950D4B21AA01E8A2CF5F0BN6PR1101MB2066_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Markus - and yes these are new local signals that have appeared over the= last couple of weeks - One of them is dead on SAQs frequency so thats that= s going tobe annoying and I may have to go onto one of the loops or mix/loo= p array to null it out. Im gradually being surrounded by new houses being b= uilt and it wasnt going to be too long before I see discrete or wideband ef= fects from new installs. The MSK on 23.4 and 22.8 are artifacts and are s= pecific to this antennae/sound card combo. NWC continues its beautiful display on various paths (with a small flare a= dded for sectioning) http://kl7l.com/NWCJelly.jpg and Ill take a look a= t HWU. 73 Laurence KL7L [http://kl7l.com/NWCJelly.jpg] ________________________________ From: Markus Vester Sent: Friday, February 17, 2017 8:05 PM To: hellozerohellozero@hotmail.com Subject: Re: Tacamo on 17.8 and 29.6 kHz Hi Laurence, nice spectrogram! That modulated carrier on 17.6 kHz looks like local QRM t= o me - motor controller, dog fence, lawnmower guide wire, or anything like = that. The MSK traces on 23.4 and 22.8 are presumably NLK and NML, mirrored down a= t the 24 kHz Nyquist limit. Apropos NML: Have you tried to zoom in on HWU 21.75 kHz? You might see simi= lar fringes to those we've been seeing on NML and others every night: https://groups.yahoo.com/neo/groups/VLF_Group/conversations/messages/25145 With the help of Peter (G3PLX) in the UK and Edgar in Tasmania, we have obt= ained some data on differential delays and direction of arrival of the refl= ected component. I have come to believe that the signals may be bouncing of= f the equatorial electrojet near the magnetic equator. Best 73, Markus -----Urspr=FCngliche Mitteilung----- Von: Laurence KL7 L An: rsgb_lf_group Verschickt: Fr, 17. Feb 2017 21:24 Betreff: Re: VLF: Tacamo on 17.8 and 29.6 kHz lots of interesting squiggles near there last night and today up in Alaska = too http://kl7l.com/fast00000.jpg [http://kl7l.com/fast00000.jpg] laurence kl7l/kh6 On Feb 17, 2017, at 1:09 AM, Markus Vester > wrote: Last night, strong Tacamo-like activity was observed on 17.8 kHz, and also = on a more unusual QRG of 29.6 kHz with even larger bandwidth. My colour-DF = grabber http://www.df6nm.de/vlf/vlfgrabber.htm indicates northwesterly inci= dence so presumably originating over the North Atlantic. The signals are al= so visible on Peter's daily spectrograms at http://www.df3lp.de/ . Best 73, Markus (DF6NM) --_000_BN6PR1101MB20668F09950D4B21AA01E8A2CF5F0BN6PR1101MB2066_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hi Markus - and yes these are new local signals that have appeared over = the last couple of weeks - One of them is dead on SAQs frequency so thats t= hats going tobe annoying and I may have to go onto one of the loops or mix/= loop array to null it out. Im gradually being surrounded by new houses being built and it wasnt going to be too lo= ng before I see discrete or wideband effects from new installs.  The M= SK on 23.4 and 22.8 are artifacts  and are specific to this antennae/s= ound card combo.  


NWC continues its beautiful display  on various paths (with a small= flare added for sectioning)   htt= p://kl7l.com/NWCJelly.jpg   and Ill take a look at HWU.  73 Laurence KL7L





From: Markus Vester <mar= kusvester@aol.com>
Sent: Friday, February 17, 2017 8:05 PM
To: hellozerohellozero@hotmail.com
Subject: Re: Tacamo on 17.8 and 29.6 kHz
 
Hi Laurence,

nice spectrogram! That modulated carrier on 17.6 kHz looks like local = QRM to me - motor controller, dog fence, lawnmower guide wire, or anything = like that.

The MSK traces on 23.4 and 22.8 are presumably NLK and NML, mirrored down&n= bsp;at the 24 kHz Nyquist limit.

Apropos NML: Have you tried to zoom in on HWU 21.75 kHz? You might see= similar fringes to those we've been seeing on NML and others every night:&= nbsp;
https://groups.yahoo.com/neo/groups/VLF_Group/conversations/messages/25145<= br> With the help of Peter (G3PLX) in the UK and Edgar in Tasmania, we have obt= ained some data on differential delays and direction of arrival of the= reflected component. I have come to believe that the signals may be b= ouncing off the equatorial electrojet near the magnetic equator.

Best 73,
Markus

-----Urspr=FCngliche Mitteilung-----
Von: Laurence KL7 L <hellozerohellozero@hotmail.com>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: Fr, 17. Feb 2017 21:24
Betreff: Re: VLF: Tacamo on 17.8 and 29.6 kHz

lots of interesting squiggles near there last night and today up in Al= aska too


laurence
kl7l/kh6

On Feb 17, 2017, at 1:09 AM, Markus Vester <markusvester@aol.= com> wrote:

Last night, strong Tacamo-like activity was observed on&n= bsp;17.8 kHz, and also on a more unusual QRG of 29.6 kHz with even larger b= andwidth. My colour-DF grabber http://www.df6nm.de/vlf/vlfgrabber.htm indicates northwesterly inc= idence so presumably originating over the North Atlantic. The signals = are also visible on Peter's daily spectrograms at http://www.df3lp.de/ .   

Best 73,
Markus (DF6NM)

--_000_BN6PR1101MB20668F09950D4B21AA01E8A2CF5F0BN6PR1101MB2066_--