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 w06Jr4Xd014617 for ; Sat, 6 Jan 2018 20:53:07 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1eXuR1-0004cO-84 for rs_out_1@blacksheep.org; Sat, 06 Jan 2018 19:47:15 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1eXuPm-0004cD-VF for rsgb_lf_group@blacksheep.org; Sat, 06 Jan 2018 19:45:58 +0000 Received: from porthos.netcom.co.uk ([217.72.171.73]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1eXuPg-0002fi-1f for rsgb_lf_group@blacksheep.org; Sat, 06 Jan 2018 19:45:53 +0000 X-DKIM-Result: Domain=abelian.org Result=Signature OK DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=abelian.org ; s=default; h=Content-Transfer-Encoding:Content-Type:In-Reply-To: MIME-Version:Date:Message-ID:From:References:To:Subject:Sender:Reply-To:Cc: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=n4JFrE/qtryzE9WNyKvVI1eFnaMnD/bDQb/4pJKA0Oc=; b=Z+3Ct35/3WnJjD4OECEbpM8HPE 2PL+XrZzoci3FXrCpF7kC7rIR9bF+3JGtENhVxsyS9BlpSMG7/0yE8D0Ppof1v9o+g6znts3rHHZ/ YkP9Ce8TMGqJSAMqOhtsIOdfWHAIGdJUOZF/NnJB3MfHsH7vxx30Yjudcrn/Fbf3CQa0=; Received: from i-194-106-52-83.freedom2surf.net ([194.106.52.83]:50480 helo=pn.abelian.org) by porthos.netcom.co.uk with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89_1) (envelope-from ) id 1eXuPf-0005EC-O4 for rsgb_lf_group@blacksheep.org; Sat, 06 Jan 2018 19:45:51 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) by pn.abelian.org (Postfix) with ESMTP id 1CEBB4005A8 for ; Sat, 6 Jan 2018 19:45:51 +0000 (UTC) To: rsgb_lf_group@blacksheep.org References: <4d96a9d4-5f22-7650-872b-6344e9aea8e3@abelian.org> <702563436.93043973.1515019639560.JavaMail.zimbra@shaw.ca> <1117988114.95527491.1515092735528.JavaMail.zimbra@shaw.ca> <1944603203.95803107.1515098735558.JavaMail.zimbra@shaw.ca> <1178238001.101520499.1515262806879.JavaMail.zimbra@shaw.ca> From: Paul Nicholson Message-ID: <7755dc83-39f7-dac5-ef4d-15ee93b1e84a@abelian.org> Date: Sat, 6 Jan 2018 19:45:51 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.3.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - porthos.netcom.co.uk X-AntiAbuse: Original Domain - blacksheep.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - abelian.org X-Get-Message-Sender-Via: porthos.netcom.co.uk: authenticated_id: catchall@abelian.org X-Authenticated-Sender: porthos.netcom.co.uk: catchall@abelian.org X-Spam-Score: 0.0 (/) 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: Andy wrote: > Someone, somewhere, must have designed a soundcard, or an A/D > that looks to a PC like a soundcard to allow easy integration > with much of this analysis software. Indeed yes. Many professionals use a 2-channel sampler built by a Hungarian company, the VR2 by BL-Electronics. [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: c1f72e5acb1277e013f90c915ad7ad68 Subject: LF: Re: SL settings for QRSS Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.9 required=5.0 tests=FROM_ENDS_IN_NUMS 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 Andy wrote: > Someone, somewhere, must have designed a soundcard, or an A/D > that looks to a PC like a soundcard to allow easy integration > with much of this analysis software. Indeed yes. Many professionals use a 2-channel sampler built by a Hungarian company, the VR2 by BL-Electronics. It has a built-in GPS and samples up to 200k/sec. Connects to a PC via Ethernet. vlfrx-tools has a program vtvr2 to read data from these devices. It is based around the ADSP BF532 DSP processor. Unfortunately the designer Laszlo Bodnar died suddenly in Dec 2012, and I'm not sure if they're still being made. Ethernet is the most robust means of connection to the PC, but needs some sort of SoC in the sampler. A solution using a Raspberry Pi and something like a CS42448 connected with SPI and a GPS locked master clock, would do nicely. The Octo card by Flatmax Studios is almost that, just missing the GPS disciplined clock. -- Paul Nicholson --