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 vASBRlar025843 for ; Tue, 28 Nov 2017 12:27:50 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1eJdxj-0006Jn-Br for rs_out_1@blacksheep.org; Tue, 28 Nov 2017 11:22:03 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1eJdxY-0006Je-U8 for rsgb_lf_group@blacksheep.org; Tue, 28 Nov 2017 11:21:52 +0000 Received: from smtp-out-2.talktalk.net ([62.24.135.66]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1eJdxT-00070x-A3 for rsgb_lf_group@blacksheep.org; Tue, 28 Nov 2017 11:21:51 +0000 Received: from [192.168.1.3] ([78.150.96.80]) by smtp.talktalk.net with SMTP id JdxSeh7leNSVVJdxSeUarf; Tue, 28 Nov 2017 11:21:46 +0000 X-Originating-IP: [78.150.96.80] X-Spam: 0 X-OAuthority: v=2.2 cv=NYGW7yL4 c=1 sm=1 tr=0 a=B23rSTckr+dWc86RbotHQg==:117 a=B23rSTckr+dWc86RbotHQg==:17 a=r77TgQKjGQsHNAKrUKIA:9 a=F3M5lZpKAAAA:8 a=QejfARXMAAAA:8 a=I-vpdjsnAAAA:8 a=gjHbtiOjAAAA:8 a=_6GpL_ENAAAA:8 a=1OUeG9TXRvM2qnjNU4kA:9 a=pILNOxqGKmIA:10 a=eRI1M-pDMIUA:10 a=pOlD9CYqQsoA:10 a=HmCT5iXHAAAA:8 a=EBOSESyhAAAA:8 a=w52fRLk4hknsXonCf2kA:9 a=hepYxprJMF5i_iAC:21 a=UiCQ7L4-1S4A:10 a=hTZeC7Yk6K0A:10 a=_W_S_7VecoQA:10 a=frz4AuCg-hUA:10 a=slCku8JSH3TyizEDQ3pD:22 a=BC3gsuZa1vz2YJYxs7Nf:22 a=SA1Ddc6mGmj6bEJBiaPk:22 a=5LF-h8hwNsenEdVTGL-N:22 a=4zOjnXqnbfPznnZ39DHr:22 a=yJM6EZoI5SlJf8ks9Ge_:22 To: rsgb_lf_group@blacksheep.org References: <58482DA2250CDA18@rgout04.bt.lon5.cpcloud.co.uk> From: g3zjo Message-ID: <832ff5d4-3a3c-f846-0e1d-834a63a15a10@psk31.plus.com> Date: Tue, 28 Nov 2017 11:21:48 +0000 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 MIME-Version: 1.0 In-Reply-To: <58482DA2250CDA18@rgout04.bt.lon5.cpcloud.co.uk> Content-Language: en-GB X-Antivirus: Avast (VPS 171127-4, 27/11/2017), Outbound message X-Antivirus-Status: Clean X-CMAE-Envelope: MS4wfCGFsgA4Sf7aILxXrdH8yTfNHULCvVKQflFDbOzMZHFgu1KVK3DeV4KIRuvVo6tiEpAnsKv7gK4R66NrVOBhBDJBeK+QUx5BLssyDvtyv9uyIrSKcgXg orJHOxAHXH/ku3XFMmQtBorDOb/viSCUdL2dhQPYy4MIYFmpRFNcbFAuUxL6K+zzdZIuk5z5vl/yeg== X-Spam-Score: 0.8 (/) 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 Dave Stefan's e-probe design for 8.7kHz antenna and sound card RX. The BPF in the probe has quite some cut off outside sub 9kHz but maybe that's good due to the adjacent big boys. 73 Eddie [...] Content analysis details: (0.8 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.1 URIBL_SBL_A Contains URL's A record listed in the SBL blocklist [URIs: df6nm.bplaced.net] 0.6 URIBL_SBL Contains an URL's NS IP listed in the SBL blocklist [URIs: df6nm.bplaced.net] 0.0 T_KAM_HTML_FONT_INVALID BODY: Test for Invalidly Named or Formatted Colors in HTML 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_REMOTE_IMAGE Message contains an external image X-Scan-Signature: 0ec4100a7eb09b79f89f9c2085e5ddc1 Subject: Re: VLF: DK7FC close to SAQ Content-Type: multipart/alternative; boundary="------------A4B95008F3ABA7D7E40A3ED9" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.4 required=5.0 tests=HTML_50_60, HTML_FONTCOLOR_UNKNOWN,HTML_MESSAGE,HTML_TAG_EXISTS_TBODY 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 This is a multi-part message in MIME format. --------------A4B95008F3ABA7D7E40A3ED9 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit Hi Dave Stefan's e-probe design for 8.7kHz antenna and sound card RX. The BPF in the probe has quite some cut off outside sub 9kHz but maybe that's good due to the adjacent big boys. 73 Eddie On 28/11/2017 10:58, Dave wrote: > > Hi, > > What antenna and RX are you using for VLF, Eddie? > > 73, Dave G3WCB IO80EI > > ------------------------------------------------------------------------ > > *From:*owner-rsgb_lf_group@blacksheep.org > [mailto:owner-rsgb_lf_group@blacksheep.org] *On Behalf Of *g3zjo > *Sent:* 28 November 2017 10:49 > *To:* rsgb_lf_group@blacksheep.org > *Subject:* Re: VLF: DK7FC close to SAQ > > Left it on overnight. > > Would you like it on 24/7, I see diurnal variations similar to Marcus > but more pronounced due to my lower signal strength. > > 73 Eddie > > On 27/11/2017 20:30, g3zjo wrote: > >> Hi Stefan >> >> I didn't quite believe what I was reading you may like to take a look >> at my Grabber. >> >> http://www.qsl.net/g3zjo/vlfgrabber >> >> 73 Eddie >> >> On 27/11/2017 09:34, DK7FC wrote: >> >>> Hello Markus, >>> >>> thanks for the feedback. Wonderful, now it is 30 dB in 424 uHz. >>> DL0AO could run a 3.8 mHz '600' RDF spectrogram and a phase and >>> signal level plot, so we could see propagation effects much better. >>> You could already see QRSS-60 from me! I will try that soon. >>> The carrier is still on the air. It will run the whole day and night... >>> >>> 73, Stefan >>> >>> Am 26.11.2017 15:59, schrieb Markus Vester: >>> >>> Yeah it's there! More than 20 dB SNR at DL0AO: >>> http://df6nm.bplaced.net/dl0ao/VLFgrabber/vlfgrabber_dl0ao_test.htm >>> >>> Excellent activity! >>> >>> 73, Markus (DF6NM) >>> >>> >>> -----Ursprüngliche Mitteilung----- >>> Von: DK7FC >>> An: rsgb_lf_group >>> >>> Verschickt: So, 26. Nov 2017 0:42 >>> Betreff: VLF: DK7FC close to SAQ >>> >>> Hi VLF, >>> >>> Since 23 UTC a 700 mA carrier is running on *17.4701 kHz*! >>> >>> It is a little surprise to the VLF community i think ;-) >>> >>> Legal? Yes: >>> http://www.iup.uni-heidelberg.de/schaefer_vlf/VLF/17,47kHz_Sonderlizenz.jpg >>> Actually the document has 3 pages but the other ones are no so >>> relevant. >>> My ERP is limited to 5 mW. I did not request more because more isn't >>> possible anyway with this antenna. >>> >>> I wound a big single layer coil with 0.5 mm enameled wire on a PVC >>> tube with 315 mm outher diameter. >>> >>> 0.7 A is just a first careful step. The coil is designed to hold 1.5 >>> A 'key down'. >>> >>> The carrier will run the whole night and even tomorrow at daytime. >>> >>> Worldwide reports are welcome ;-) >>> >>> It is not sub-9-kHz but still VLF, the 17 km band!! So give it >>> chance :-) >>> >>> The tree has still some solar power to stream the signal from the EW >>> loop down to the city, so there is a feedback spectrogram at >>> http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html >>> >>> >>> 73, Stefan >>> >>> PS: I still can hear that tone of the coil. It is terrible! Be happy >>> when you are older than me! >>> > > > Virus-free. www.avast.com > > > > <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> --------------A4B95008F3ABA7D7E40A3ED9 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: 8bit

Hi Dave

Stefan's e-probe design for 8.7kHz antenna and sound card RX. The BPF in the probe has quite some cut off outside sub 9kHz but maybe that's good due to the adjacent big boys.

73 Eddie


On 28/11/2017 10:58, Dave wrote:

Hi,

 

What antenna and RX are you using for VLF, Eddie?

 

73, Dave G3WCB IO80EI

 

From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of g3zjo
Sent: 28 November 2017 10:49
To: rsgb_lf_group@blacksheep.org
Subject: Re: VLF: DK7FC close to SAQ

 

Left it on overnight.

Would you like it on 24/7, I see diurnal variations similar to Marcus but more pronounced due to my lower signal strength.

73 Eddie

 

On 27/11/2017 20:30, g3zjo wrote:

Hi Stefan

I didn't quite believe what I was reading you may like to take a look at my Grabber.

http://www.qsl.net/g3zjo/vlfgrabber

73 Eddie

 

On 27/11/2017 09:34, DK7FC wrote:

Hello Markus,

thanks for the feedback. Wonderful, now it is 30 dB in 424 uHz. DL0AO could run a 3.8 mHz '600' RDF spectrogram and a phase and signal level plot, so we could see propagation effects much better.
You could already see QRSS-60 from me! I will try that soon.
The carrier is still on the air. It will run the whole day and night...

73, Stefan

Am 26.11.2017 15:59, schrieb Markus Vester:

Yeah it's there! More than 20 dB SNR at DL0AO: http://df6nm.bplaced.net/dl0ao/VLFgrabber/vlfgrabber_dl0ao_test.htm

Excellent activity!

73, Markus (DF6NM)


-----Ursprüngliche Mitteilung-----
Von: DK7FC <selberdenken@posteo.de>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: So, 26. Nov 2017 0:42
Betreff: VLF: DK7FC close to SAQ

Hi VLF,

Since 23 UTC a 700 mA carrier is running on 17.4701 kHz!

It is a little surprise to the VLF community i think ;-)

Legal? Yes: http://www.iup.uni-heidelberg.de/schaefer_vlf/VLF/17,47kHz_Sonderlizenz.jpg
Actually the document has 3 pages but the other ones are no so relevant.
My ERP is limited to 5 mW. I did not request more because more isn't possible anyway with this antenna.

I wound a big single layer coil with 0.5 mm enameled wire on a PVC tube with 315 mm outher diameter.

0.7 A is just a first careful step. The coil is designed to hold 1.5 A 'key down'.

The carrier will run the whole night and even tomorrow at daytime.

Worldwide reports are welcome ;-)

It is not sub-9-kHz but still VLF, the 17 km band!! So give it chance :-)

The tree has still some solar power to stream the signal from the EW loop down to the city, so there is a feedback spectrogram at
http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html


73, Stefan

PS: I still can hear that tone of the coil. It is terrible! Be happy when you are older than me!

 

 


Virus-free. www.avast.com

--------------A4B95008F3ABA7D7E40A3ED9--