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, RCVD_IN_DNSWL_MED,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 X-Spam-DCC: EATSERVER: mailn 1166; Body=3 Fuz1=3 Fuz2=3 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 v5OHwV91030430 for ; Sat, 24 Jun 2017 19:58:33 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1dOpGA-0007BD-Bv for rs_out_1@blacksheep.org; Sat, 24 Jun 2017 18:54:14 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1dOpG9-0007B4-UA for rsgb_lf_group@blacksheep.org; Sat, 24 Jun 2017 18:54:13 +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 1dOpG6-00036y-Vn for rsgb_lf_group@blacksheep.org; Sat, 24 Jun 2017 18:54:12 +0100 Received: from submission (posteo.de [89.146.220.130]) by mout02.posteo.de (Postfix) with ESMTPS id A47D0208D7 for ; Sat, 24 Jun 2017 19:54:08 +0200 (CEST) Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 3ww2xq2pvSz105R for ; Sat, 24 Jun 2017 19:54:07 +0200 (CEST) Message-ID: <594EA73E.608@posteo.de> Date: Sat, 24 Jun 2017 19:54:06 +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: <15ca21dc75e-1e15-bcda@webprd-m105.mail.aol.com> <0f9558b4-457d-a395-58c9-7f9be3393cdd@sky.com> <4767d79f-2bf6-d838-bfd4-3e78102d6f5d@abelian.org> <510c15eb-b57a-0ebb-9037-1f83e0652cf2@sky.com> <594933CC.70603@posteo.de> <594D2E83.7090204@posteo.de> <464028ae-2821-ec69-9343-e8f99983b314@abelian.org> <594D7DCC.5060109@posteo.de> In-Reply-To: X-Scan-Signature: 4b5b5ebe37a4c4f430f59bc35c1947b0 Subject: Re: LF: Ebnaut on raspi3 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit 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: 12092 Hi Joe, You can use NAA for calibrating SpecLab on a windows PC and use the samw instance for transmitting and receiving EbNaut. With the Raspi you would need vlfrx tools and a 1 PPS reference from a GPS module. Just order one and try it. Hm, how many coils did you damage so far? Sound like you need a better concept to manage the HV ;-) Good luck. We are waiting in some more distance here to see your signal in the coming season! 73, Stefan Am 24.06.2017 18:13, schrieb jcraig@mun.ca: > Hi Stefan, > > I decoded Paul's smaller demo file on the raspi3, but need a sound > card and a freq reference to decode a real signal off the air. > > Would it be possible to get a small usb card (96 kHz) and use NAA > on 24 kHz as a referece to send and receive EbNaut with the Raspi3? > > Tinkering on 8270.007 Hz resulted in 0.4 amps briefly until a coil fried. > The pie configuration with 24*0.08 mm wires gives 0.5H at 150 ohms > with less than 2kg of copper but dealing with volage gradients is a > challenge. At the moment the VLF TX is on with 0.3 amps. > > 73 > Joe > > On Fri, 23 Jun 2017, DK7FC wrote: > >> Hello Joe, >> >> Does that mean that you can decode EbNaut now, for example on LF? :-) >> >> 73, Stefan >> >> Am 23.06.2017 21:19, schrieb jcraig@mun.ca: >>> Problem solved. Thank-you Paul. >>> Joe >>> >>> >> >> >