Return-Path: X-Spam-DCC: paranoid 1233; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: * X-Spam-Status: No, score=1.2 required=5.0 tests=BAYES_20,DNS_FROM_AHBL_RHSBL, RATWARE_GECKO_BUILD,SPF_PASS autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id u64KKef1002526 for ; Mon, 4 Jul 2016 22:20:40 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1bKAG3-0007RN-B8 for rs_out_1@blacksheep.org; Mon, 04 Jul 2016 21:14:19 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1bKAG2-0007RE-Oz for rsgb_lf_group@blacksheep.org; Mon, 04 Jul 2016 21:14:18 +0100 Received: from mailfe05.swip.net ([212.247.154.129] helo=swip.net) by relay1.thorcom.net with esmtp (Exim 4.87) (envelope-from ) id 1bKAG1-000657-5B for rsgb_lf_group@blacksheep.org; Mon, 04 Jul 2016 21:14:17 +0100 X-T2-Spam-Status: No, hits=0.8 required=5.0 tests=BAYES_50 Received: from [81.224.109.193] (account cxu-dcw-tyr@tele2.se HELO [192.168.1.3]) by mailfe05.swip.net (CommuniGate Pro SMTP 5.4.4) with ESMTPSA id 670789070 for rsgb_lf_group@blacksheep.org; Mon, 04 Jul 2016 22:14:14 +0200 To: rsgb_lf_group@blacksheep.org References: <3FC309493876428EA7AB8BF0C3A0A26B@PCMF> <3a9db53a-0ae3-9cbe-9586-260aa8396026@kabelmail.de> <577AB9AF.2722.6B0EEB@roelof.ndb.demon.nl> From: Johan Bodin Message-ID: Date: Mon, 4 Jul 2016 22:14:16 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.1.1 MIME-Version: 1.0 In-Reply-To: <577AB9AF.2722.6B0EEB@roelof.ndb.demon.nl> X-HELO-Warning: Remote host 212.247.154.129 (mailfe05.swip.net) used invalid HELO/EHLO swip.net - verification failed X-Scan-Signature: 7aa9ad08848e488e22e0ff1d71f4ef1d Subject: Re: LF: SAQ reception in JN59WK Content-Type: text/plain; charset=windows-1252; 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 2.56 on 10.1.3.11 Status: O X-Status: X-Keywords: X-UID: 8342 Hello Roelof, your 17dB agrees very well with my measurement made many years ago, I also found the "backwave" to be 17 dB below key-down power. Assuming the key-down output is 200kW, "only" 4000 watts, or 5.44 horsepowers, leaks out when the key is up :-) 73 de Johan SM6LKM Roelof Bakker wrote: > Hello all, > > SAQ was 30 dB above the noise floor here and the residual key-up > carrier was about 17 dB weaker. If you can hear the latter, > reception is good! > > The receiver here is a PERSEUS SDR and the antenna is a > pa0rdt-Mini-Whip, 5 meter up in a hawthorne tree. > > 73, > Roelof Bakker, pa0rdt