Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, HTML_MESSAGE,SPF_PASS,T_KAM_HTML_FONT_INVALID,URIBL_BLOCKED autolearn=ham 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 v86B7ITo032066 for ; Wed, 6 Sep 2017 13:07:20 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1dpY5N-0001bs-J7 for rs_out_1@blacksheep.org; Wed, 06 Sep 2017 12:01:33 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1dpY5F-0001bh-VY for rsgb_lf_group@blacksheep.org; Wed, 06 Sep 2017 12:01:25 +0100 Received: from gmy2-mh803.smtproutes.com ([94.186.192.132]) by relay1.thorcom.net with esmtp (Exim 4.89) (envelope-from ) id 1dpY5B-00032r-4L for rsgb_lf_group@blacksheep.org; Wed, 06 Sep 2017 12:01:24 +0100 X-Katharion-ID: 1504695662.71690.gmy2-mh803 Received: from servigilant.vigilant.es ([85.60.35.36]) by gmy2-mh803.smtproutes.com [(94.186.192.132)] with ESMTP via TCP (TLSv1/TLS_DHE_RSA_WITH_AES_256_CBC_SHA); 06 Sep 2017 11:01:02 +0000 Received: from servigilant.vigilant.local ([fe80::c40d:8140:d722:5448]) by servigilant.vigilant.local ([fe80::c40d:8140:d722:5448%13]) with mapi id 14.03.0123.003; Wed, 6 Sep 2017 13:00:54 +0200 From: =?iso-8859-1?Q?VIGILANT_Luis_Fern=E1ndez?= To: "rsgb_lf_group@blacksheep.org" Thread-Topic: LF: HF Radio black out / also on VLF! Thread-Index: AQHTJvbDelosigb1Z0mwvgBQ5O9lKKKnreuQ Date: Wed, 6 Sep 2017 11:00:54 +0000 Message-ID: <579355A36AEE9D4FA555C45D556003AB9A9F1260@servigilant.vigilant.local> References: <15e4d1026af-c0a-3b162@webjas-vad110.srv.aolmail.net>, <59AFBCC8.30526.85484C@roelof.ndb.demon.nl> <59AFC5E8.30506@posteo.de> In-Reply-To: <59AFC5E8.30506@posteo.de> Accept-Language: es-ES, en-US Content-Language: es-ES X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [fe80::bc02:478c:b94e:49df] MIME-Version: 1.0 X-Scan-Signature: 719233b489c0727505743c30ad56ff81 Subject: RE: LF: HF Radio black out / also on VLF! Content-Type: multipart/alternative; boundary="_000_579355A36AEE9D4FA555C45D556003AB9A9F1260servigilantvigi_" 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: 12525 --_000_579355A36AEE9D4FA555C45D556003AB9A9F1260servigilantvigi_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi All What we got at about 9 UTC was an intense flare peak reaching R2 http://www.swpc.noaa.gov/communities/space-weather-enthusiasts Looks like since then I'm getting less ground noise in my grabber. Speciall= y in the lower frequencies like the 50Hz window at the bottom of my grabber https://ea5dom.ure.es/grabber/index.html The drop of noise is clearly seen also in the 8270Hz and 4270Hz 3.8mHz FFT= windows at Stefan's VLF grabber I keep transmitting in MF during the day. But no signs of inono refelection= s due to flares 73 de Luis EA5DOM De: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blackshe= ep.org] En nombre de DK7FC Enviado el: mi=E9rcoles, 06 de septiembre de 2017 11:55 Para: rsgb_lf_group@blacksheep.org Asunto: Re: LF: HF Radio black out / also on VLF! Hi Roelof, Very interesting. It also affects VLF! Clearly visible e.g. at http://www.i= up.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html It happens since about 9 UTC. Would have been interesting to observe the propagation on 8.27 kHz during t= hat time... 73, Stefan Am 06.09.2017 11:15, schrieb Roelof Bakker: Hello all, Now something different: It looks like a severe radio black out of HF is ongoing. I have never seen this before. See attachment. This is also an opportunity to look at PLC interference at the lower bands, which is normally covered by signals. I checked it on 3 different antennas: mini-whip, loop and hf-doublet. 73, Roelof, pa0rdt Middelburg, JO11tm The following section of this message contains a file attachment prepared for transmission using the Internet MIME message format. If you are using Pegasus Mail, or any other MIME-compliant system, you should be able to save it or view it from within your mailer. If you cannot, please ask your system administrator for assistance. ---- File information ----------- File: HF Radio black out.jpg Date: 6 Sep 2017, 11:07 Size: 61486 bytes. Type: JPEG-image --_000_579355A36AEE9D4FA555C45D556003AB9A9F1260servigilantvigi_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hi All

 = ;

What we got at about 9 UTC was an intense flare peak reaching R2<= /o:p>

http://www.swpc.noaa.gov/communities/space-weather-enthusiasts

 

Looks like since then I’m getting less ground noise in my grabbe= r. Specially in the lower frequencies

like the 50Hz window at the bottom of my grabber

https://ea5dom.ure.es/grabber/index.html

 

The drop of noise is clearly seen also in the 8270Hz and 4270Hz  = 3.8mHz FFT windows at Stefan’s VLF grabber

 

I keep transmitting in MF during the day. But no signs of inono refele= ctions due to flares

 

73 de Luis

EA5DOM

 

De: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep= .org] En nombre de DK7FC
Enviado el: mi=E9rcoles, 06 de septiembre de 2017 11:55
Para: rsgb_lf_group@blacksheep.org
Asunto: Re: LF: HF Radio black out / also on VLF!<= /p>

 

Hi Roelof,

Very interesting. It also affects VLF! Clearly visible e.g. at http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html It happens since about 9 UTC.
Would have been interesting to observe the propagation on 8.27 kHz during t= hat time...

73, Stefan

Am 06.09.2017 11:15, schrieb Roelof Bakker: 

Hello all,
 
Now something different:
 
It looks like a severe radio black out of HF is ongoing.

I have never seen this before. See attachment.


 


This is also an opportunity to look at PLC interference at the lower <=
o:p>


bands, which is normally covered by signals.


 


I checked it on 3 different antennas: mini-whip, loop and <=
/pre>

hf-doublet.


 


73,


Roelof, pa0rdt


Middelburg, JO11tm


 


  


 


 


The following section of this message contains a file attachment<=
/o:p>


prepared for transmission using the Internet MIME message format.=



If you are using Pegasus Mail, or any other MIME-compliant system,


you should be able to save it or view it from within your mailer.=



If you cannot, please ask your system administrator for assistance.


 


   ---- File information -----------


     File:  HF Radio black out.jpg=



     Date:  6 Sep 2017, 11:07

     Size:  61486 bytes.


     Type:  JPEG-image


 
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