Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dk05.r1000.mx.aol.com (Internet Inbound) with ESMTP id 15067380001A5; Wed, 31 Oct 2012 14:26:04 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1TTcyI-0005Ux-EZ for rs_out_1@blacksheep.org; Wed, 31 Oct 2012 18:24:58 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1TTcyI-0005Uo-1k for rsgb_lf_group@blacksheep.org; Wed, 31 Oct 2012 18:24:58 +0000 Received: from smtp-vbr14.xs4all.nl ([194.109.24.34]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1TTcyG-0005gh-8k for rsgb_lf_group@blacksheep.org; Wed, 31 Oct 2012 18:24:56 +0000 Received: from [10.0.0.176] (a80-101-33-132.adsl.xs4all.nl [80.101.33.132]) (authenticated bits=0) by smtp-vbr14.xs4all.nl (8.13.8/8.13.8) with ESMTP id q9VIOoIY036007 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 31 Oct 2012 19:24:55 +0100 (CET) (envelope-from westberg@xs4all.nl) Message-ID: <50916CF1.8010002@xs4all.nl> Date: Wed, 31 Oct 2012 19:24:49 +0100 From: Albert W User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:16.0) Gecko/20121026 Thunderbird/16.0.2 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <50904AD0.5070306@broadpark.no> <50904BB6.4010905@xs4all.nl> <50904E73.9030402@psk31.plus.com> <50904F8F.90505@xs4all.nl> <509056D9.2050107@psk31.plus.com> In-Reply-To: <509056D9.2050107@psk31.plus.com> X-Virus-Scanned: by XS4ALL Virus Scanner X-Spam-Score: 0.9 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Hello all test-users of WSJT-X, Today I used the afternoon to solve some issues encountered by using WSTJ-X v0.2 r2706. Test setup Flex1500 TXing 1mW, with a lot of attenuation into a power combiner, output to a Flex 5000 RXing and the other input of de combiner to an active antenna providing real outdoor noise and some QRN. PC's Windows 7 64bit. [...] Content analysis details: (0.9 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [194.109.24.34 listed in list.dnswl.org] 1.6 SUBJ_ALL_CAPS Subject is all capitals -0.7 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain X-Scan-Signature: bb61bee384896e075004ae5ec954ddd2 Subject: LF: WSJT-X BENCH TESTS Content-Type: text/plain; charset=ISO-8859-1; 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=0.6 required=5.0 tests=SUBJ_ALL_CAPS 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 x-aol-global-disposition: G x-aol-sid: 3039ac1db40950916d3c14d3 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Hello all test-users of WSJT-X, Today I used the afternoon to solve some issues encountered by using WSTJ-X v0.2 r2706. Test setup Flex1500 TXing 1mW, with a lot of attenuation into a power combiner, output to a Flex 5000 RXing and the other input of de combiner to an active antenna providing real outdoor noise and some QRN. PC's Windows 7 64bit. JT9-2: minimum SNR (on WSJT screen) for solid decodes is - 22dB. All OK while increasing the input level of the wanted signal untill the SNR reaches 0 dB (-1 dB is still OK) Here we get the famous *********15P6715P67WCV. The dynamic range of JT9-2 is in this case only 30 dB. (Remote stations receiving relative weak signals had the best results) Conclusion: for the time being you have to keep the RX signals at a level below a SNR of 0dB and above 22 dB for 100% decodes. Very important also is the timing, keep your PC clock within 1 sec accuracy and keep your tx and rx frequency as stable as possible. 73, Albert