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: : mailn 1480; 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 v5O0X1gN026542 for ; Sat, 24 Jun 2017 02:33:02 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1dOYvv-0004oF-AV for rs_out_1@blacksheep.org; Sat, 24 Jun 2017 01:28:15 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1dOYvu-0004o6-AD for rsgb_lf_group@blacksheep.org; Sat, 24 Jun 2017 01:28:14 +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 1dOYvr-0000j0-1V for rsgb_lf_group@blacksheep.org; Sat, 24 Jun 2017 01:28:13 +0100 Received: from submission (posteo.de [89.146.220.130]) by mout02.posteo.de (Postfix) with ESMTPS id 0A8AA20A0F for ; Sat, 24 Jun 2017 02:28:08 +0200 (CEST) Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 3wvbkv432dzyp6 for ; Sat, 24 Jun 2017 02:28:07 +0200 (CEST) Message-ID: <594DB217.8060707@posteo.de> Date: Sat, 24 Jun 2017 02:28:07 +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> <933fcc32-d4c9-10cd-14b4-c179d66e27f9@abelian.org> <7ab80e0f-40d7-6b07-19c1-f4b256d47c52@sky.com> In-Reply-To: X-Scan-Signature: 59677119386dcf9f1872cb454dc1331d Subject: Re: LF: Octo-soundcard for the Raspi, another question Content-Type: text/plain; charset=UTF-8; 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: 12078 Hi Paul, What is the ideal pulse length, amplitude and shape for vlfrx tools? Can you show a reference graph? 73, Stefan Am 17.06.2017 19:59, schrieb Paul Nicholson: > > > http://abelian.org/vlf/tmp/170617a.gif > > > Yes that's it! > > Then there's a high pass getting in the way, must be > the input circuit of the Octo. You'll have to > use a shorter PPS. 2mS to 5mS ought to do it.