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=2 Fuz1=2 Fuz2=2 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 v3FDOmVU023626 for ; Sat, 15 Apr 2017 15:24:49 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1czNeD-00068q-DM for rs_out_1@blacksheep.org; Sat, 15 Apr 2017 14:21:53 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1czNeD-00068h-4a for rsgb_lf_group@blacksheep.org; Sat, 15 Apr 2017 14:21:53 +0100 Received: from lb3-smtp-cloud2.xs4all.net ([194.109.24.29]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.89) (envelope-from ) id 1czNeA-0005aL-IC for rsgb_lf_group@blacksheep.org; Sat, 15 Apr 2017 14:21:51 +0100 Received: from [192.168.178.20] ([83.162.220.82]) by smtp-cloud2.xs4all.net with ESMTP id 8dMo1v0041nG4D701dMpcl; Sat, 15 Apr 2017 15:21:49 +0200 From: "Roelof Bakker" To: rsgb_lf_group@blacksheep.org Date: Sat, 15 Apr 2017 15:21:47 +0200 MIME-Version: 1.0 Message-ID: <58F21E6B.3096.F2699@roelof.ndb.demon.nl> In-reply-to: References: X-mailer: Pegasus Mail for Windows (4.72.572) Content-description: Mail message body X-Scan-Signature: 4d4a9e8f68fb15c54898568240f542c5 Subject: Re: LF: 2017-04-15 06:00:30 VO1NA AA PA0RDT JO11TM 0 477 -17 Op8_||||||||||||||||||||||||||||||_~17dB Content-type: text/plain; charset=US-ASCII 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: O X-Status: X-Keywords: X-UID: 11316 Hello Graham, Thank you for the accumulated results of last night's 477 VO1NA OP8 reception. Results are promising as propagation was rather mediocre. I find it amazing how well the cheap RTL-SDR V3 dongle worked. Is the signal to noise figure referenced to a bandwidth of 2500 Hz? If so, using a 12 Hz filter for aural copy, yields an improvement of about 23 dB. 73, Roelof, pa0rdt