Return-Path: X-Spam-DCC: paranoid 1356; Body=3 Fuz1=3 Fuz2=3 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-0.3 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, HTML_30_40,HTML_MESSAGE,RATWARE_GECKO_BUILD,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 u43MBBAd020190 for ; Wed, 4 May 2016 00:11:11 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1axiTa-0005gV-Ie for rs_out_1@blacksheep.org; Tue, 03 May 2016 23:07:30 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1axiTa-0005gM-2c for rsgb_lf_group@blacksheep.org; Tue, 03 May 2016 23:07:30 +0100 Received: from mout01.posteo.de ([185.67.36.65]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.87) (envelope-from ) id 1axiTX-00046L-9C for rsgb_lf_group@blacksheep.org; Tue, 03 May 2016 23:07:28 +0100 Received: from dovecot03.posteo.de (dovecot03.posteo.de [172.16.0.13]) by mout01.posteo.de (Postfix) with ESMTPS id 25C7420B92 for ; Wed, 4 May 2016 00:07:25 +0200 (CEST) Received: from mail.posteo.de (localhost [127.0.0.1]) by dovecot03.posteo.de (Postfix) with ESMTPSA id 3qzwJY0SzFz5vML for ; Wed, 4 May 2016 00:07:25 +0200 (CEST) Message-ID: <5729211C.1030208@posteo.de> Date: Wed, 04 May 2016 00:07:24 +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: <154777e5a99-7794-fc2f@webprd-a10.mail.aol.com> <5728DB40.3010107@abelian.org> <57291999.6070601@posteo.de> In-Reply-To: <57291999.6070601@posteo.de> X-Scan-Signature: bde53fa3678f346afe39dd99e3e185db Subject: Re: VLF: EbNaut transmissions on lower frequencies?, pre-tests: 6.47 kHz Content-Type: multipart/alternative; boundary="------------080701010209030503000004" 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 Status: O X-Status: X-Keywords: X-UID: 7987 This is a multi-part message in MIME format. --------------080701010209030503000004 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit A first test in EbNaut on 6.47 kHz: *f = 6470.000 Hz Start time: 03.05.2016 22:30:02 UTC Period: 50 s Length: 5 CRC 16 Coding 8K19A Duration: 7h, 6m, 40s* 73, Stefan Am 03.05.2016 23:35, schrieb DK7FC: > Hi VLF, > > I have added the remaining yoghurt cups of the stacked loading coil > and put 100 of 100 iron power cores into them. The resonance was now > found at 6.5x kHz but i want to go to my old frequency, 6.47 kHz. > > I am already on the air! The antenna current is about 150 mA but i > still have to optimise things a bit. > > I have extended my VLF2 grabber for the band, > http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html > > Also i have added a 47 uHz window to give IW4DXW and others a chance > to leave a trace there on 8.27 kHz. > > Maybe i will transmit some EbNaut later, but a simple carrier would be > helpful for the first tests... > > 73, Stefan > --------------080701010209030503000004 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit A first test in EbNaut on 6.47 kHz:

f = 6470.000 Hz
Start time: 03.05.2016 22:30:02 UTC
Period: 50 s
Length: 5
CRC 16
Coding 8K19A
Duration: 7h, 6m, 40s

73, Stefan

Am 03.05.2016 23:35, schrieb DK7FC:

Hi VLF,

I have added the remaining yoghurt cups of the stacked loading coil and put 100 of 100 iron power cores into them. The resonance was now found at 6.5x kHz but i want to go to my old frequency, 6.47 kHz.

I am already on the air! The antenna current is about 150 mA but i still have to optimise things a bit.

I have extended my VLF2 grabber for the band, http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html

Also i have added a 47 uHz window to give IW4DXW and others a chance to leave a trace there on 8.27 kHz.

Maybe i will transmit some EbNaut later, but a simple carrier would be helpful for the first tests...

73, Stefan

--------------080701010209030503000004--