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=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 v3FK8YpC024524 for ; Sat, 15 Apr 2017 22:08:35 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1czTwv-0003a9-HS for rs_out_1@blacksheep.org; Sat, 15 Apr 2017 21:05:37 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1czTwv-0003a0-4b for rsgb_lf_group@blacksheep.org; Sat, 15 Apr 2017 21:05:37 +0100 Received: from simone.ucs.mun.ca ([134.153.232.76]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.89) (envelope-from ) id 1czTwr-0006nL-Ow for rsgb_lf_group@blacksheep.org; Sat, 15 Apr 2017 21:05:35 +0100 Received: from plato.ucs.mun.ca (plato.ucs.mun.ca [134.153.232.153]) by simone.ucs.mun.ca (8.13.8/8.13.8) with ESMTP id v3FK5SU4026017 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Sat, 15 Apr 2017 17:35:28 -0230 Date: Sat, 15 Apr 2017 17:35:28 -0230 (NDT) From: jcraig@mun.ca X-X-Sender: jcraig@plato.ucs.mun.ca To: rsgb_lf_group@blacksheep.org In-Reply-To: <58F21E6B.3096.F2699@roelof.ndb.demon.nl> Message-ID: References: <58F21E6B.3096.F2699@roelof.ndb.demon.nl> MIME-Version: 1.0 X-Scan-Signature: 7001055fa59a9c23b9831ea6d317a074 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; format=flowed 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: 11337 Hi Graham, Roelof, Thanks for the encouragement and reports. The dongle sounds very interesting. Here still using old superhets! There will be an encore tonight starting 2300. Still tinkering on VLF and giving some thought to raising the aerials again. 73 to all Joe VO1NA On Sat, 15 Apr 2017, Roelof Bakker wrote: > 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 > > >