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=HEADER_FROM_DIFFERENT_DOMAINS, HTML_MESSAGE,RCVD_IN_DNSWL_MED,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 X-Spam-DCC: : mailn 1480; 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 v4UAJL1K031580 for ; Tue, 30 May 2017 12:19:22 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1dFeAi-0001Xr-9J for rs_out_1@blacksheep.org; Tue, 30 May 2017 11:14:40 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1dFeAf-0001XK-M0 for rsgb_lf_group@blacksheep.org; Tue, 30 May 2017 11:14:37 +0100 Received: from mout02.posteo.de ([185.67.36.66]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1dFeAb-0004lJ-94 for rsgb_lf_group@blacksheep.org; Tue, 30 May 2017 11:14:36 +0100 Received: from submission (posteo.de [89.146.220.130]) by mout02.posteo.de (Postfix) with ESMTPS id 03F3120A98 for ; Tue, 30 May 2017 12:14:30 +0200 (CEST) Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 3wcTx12zvRz10BS for ; Tue, 30 May 2017 12:14:29 +0200 (CEST) Message-ID: <592D4604.2080402@posteo.de> Date: Tue, 30 May 2017 12:14:28 +0200 From: DK7FC User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <15c55902869-6343-1b8ef@webprd-m39.mail.aol.com> <8C1C0075F3A767409EE14E6BCD68AAAC017723DECF@INTAMEX10.inta.es> In-Reply-To: <8C1C0075F3A767409EE14E6BCD68AAAC017723DECF@INTAMEX10.inta.es> X-Scan-Signature: 4998b3eda037fec4e885bebc9a2db934 Subject: Re: LF: Re: Four signals on 38.0, 40.4, 42.5, 44.2 kHz - what are they? Content-Type: multipart/alternative; boundary="------------090503020300030803050905" 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: 11830 This is a multi-part message in MIME format. --------------090503020300030803050905 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Hello Manuel, Nice to see you here again. It is interesting to see how many people seem to read the reflector, but without writing daily :-) I remember you saw a trace from me on LF a few years ago. 73, all the best Stefan Am 30.05.2017 11:12, schrieb Manuel Carbonell Alanís: > Dear friends: > > I think, the signals in 38.0, 40.4 and 44.2 could be Swedish Navy. The > last time I listen them was on Nov-15, with 38.0 and 44.2 kHz in > parallel (on/off at same time) > > 73 de > > > -Manuel Carbonell- > (EC4AA) > > > ------------------------------------------------------------------------ > *De:* owner-rsgb_lf_group@blacksheep.org > [owner-rsgb_lf_group@blacksheep.org] en nombre de Markus Vester > [markusvester@aol.com] > *Enviado:* lunes, 29 de mayo de 2017 20:55 > *Para:* rsgb_lf_group@blacksheep.org > *Asunto:* LF: Four signals on 38.0, 40.4, 42.5, 44.2 kHz - what are they? > > Bernd DF9RB from the DL0AO team proposed extending the display range > of the wideband grabbers to 48 kHz: > http://df6nm.bplaced.net/dl0ao/VLFgrabber/vlfgrabber_dl0ao_test.htm > > Thereafter, we stumbled upon four unidentified strips on 38.0, 40.4, > 42.5, 44.2 kHz. My first thought was that these must be local > interference. But it turned out that they show pronounced nighttime > fading, and they are also visible on Peter's grabber in Kiel: > http://lf-radio.de/cgi-bin/ki/show_wf.cgi?date=17-05-26 > > All four frequencies carry the same 200 Hz wide spectrum. Zooming in > exhibits a fine structure consisting of a number of closely spaced > discrete lines, suggesting modulation with a constantly repeating bit > pattern (see second grabber window at DL0AO). There are occasional > bursts where the signal goes up by 10 dB for several ten > minutes, like yesterday around 21 UT. The red or purple colour-DF > would indicate arrival from East or Northeast. > > Any ideas what these may be? > > 73, Markus (DF6NM) > --------------090503020300030803050905 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Hello Manuel,

Nice to see you here again. It is interesting to see how many people seem to read the reflector, but without writing daily :-)
I remember you saw a trace from me on LF a few years ago.

73, all the best
Stefan

Am 30.05.2017 11:12, schrieb Manuel Carbonell Alanís:
Dear friends:

I think, the signals in 38.0, 40.4 and 44.2 could be Swedish Navy. The last time I listen them was on Nov-15, with 38.0 and 44.2 kHz in parallel (on/off at same time)

73 de


                                    -Manuel Carbonell-
                                          (EC4AA)


De: owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.org] en nombre de Markus Vester [markusvester@aol.com]
Enviado: lunes, 29 de mayo de 2017 20:55
Para: rsgb_lf_group@blacksheep.org
Asunto: LF: Four signals on 38.0, 40.4, 42.5, 44.2 kHz - what are they?

Bernd DF9RB from the DL0AO team proposed extending the display range of the wideband grabbers to 48 kHz:
 http://df6nm.bplaced.net/dl0ao/VLFgrabber/vlfgrabber_dl0ao_test.htm

Thereafter, we stumbled upon four unidentified strips on 38.0, 40.4, 42.5, 44.2 kHz. My first thought was that these must be local interference. But it turned out that they show pronounced nighttime fading, and they are also visible on Peter's grabber in Kiel:
 http://lf-radio.de/cgi-bin/ki/show_wf.cgi?date=17-05-26

All four frequencies carry the same 200 Hz wide spectrum. Zooming in exhibits a fine structure consisting of a number of closely spaced discrete lines, suggesting modulation with a constantly repeating bit pattern (see second grabber window at DL0AO). There are occasional bursts where the signal goes up by 10 dB for several ten minutes, like yesterday around 21 UT. The red or purple colour-DF would indicate arrival from East or Northeast.

Any ideas what these may be?

73, Markus (DF6NM)

--------------090503020300030803050905--