Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mk05.r1000.mx.aol.com (Internet Inbound) with ESMTP id 3D40C380000AA; Tue, 18 Dec 2012 14:29:04 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Tl2ov-0005cx-Fi for rs_out_1@blacksheep.org; Tue, 18 Dec 2012 19:27:17 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Tl2ou-0005cn-LG for rsgb_lf_group@blacksheep.org; Tue, 18 Dec 2012 19:27:16 +0000 Received: from mout.gmx.net ([212.227.17.21]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1Tl2os-0004YC-AL for rsgb_lf_group@blacksheep.org; Tue, 18 Dec 2012 19:27:15 +0000 Received: from mailout-de.gmx.net ([10.1.76.35]) by mrigmx.server.lan (mrigmx001) with ESMTP (Nemesis) id 0M8npK-1TxBsv14o8-00CCPi for =?utf-8?q?;?= Tue, 18 Dec 2012 20:26:53 +0100 Received: (qmail invoked by alias); 18 Dec 2012 19:26:52 -0000 Received: from p5B260217.dip0.t-ipconnect.de (EHLO [127.0.0.1]) [91.38.2.23] by mail.gmx.net (mp035) with SMTP; 18 Dec 2012 20:26:52 +0100 X-Authenticated: #136974488 X-Provags-ID: V01U2FsdGVkX1+5Mb4li265jWFN/eraQiF8BfTzgez3PYpXRpABNv 8n/Rt4+cDhqpq0 Message-ID: <50D0C37A.2030405@gmx.net> Date: Tue, 18 Dec 2012 20:26:50 +0100 From: Tobias DG3LV User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/17.0 Thunderbird/17.0 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org CC: Rik Strobbe References: ,<50CE5A96.40902@broadpark.no> <50CE6BDB.6080008@gmx.net>,<50CF71CE.5090902@broadpark.no> ,<50CFA0F5.1030506@princeton.edu> <7E7DFBB4D102A04DB5ADC88D66628A4A0FB60AA5@ICTS-S-MBX5.luna.kuleuven.be>,<50D0567E.5030305@gmx.net> <7E7DFBB4D102A04DB5ADC88D66628A4A0FB60B7B@ICTS-S-MBX5.luna.kuleuven.be> In-Reply-To: <7E7DFBB4D102A04DB5ADC88D66628A4A0FB60B7B@ICTS-S-MBX5.luna.kuleuven.be> X-Y-GMX-Trusted: 0 X-Spam-Score: 1.6 (+) 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: Hi Rik ! OK, QRV on 501.4 in JT9-10 from now on (19:15). My reply-signal will be on 475.268 kHz = 474.2 (WSPR-)Dial + 1068 Hz Offset. PA-test was successful + Tx-frequency should be stable enough, so we can have some fun ! [...] Content analysis details: (1.6 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [212.227.17.21 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (dg3lv[at]gmx.net) -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 1.6 SUBJ_ALL_CAPS Subject is all capitals -0.0 SPF_PASS SPF: sender matches SPF record X-Scan-Signature: 79aab7440207271f32757adc503f8c76 Subject: LF: JT9-10 @ 501.4 +1000 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit 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: 3039ac1d618950d0c3ff1804 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Hi Rik ! OK, QRV on 501.4 in JT9-10 from now on (19:15). My reply-signal will be on 475.268 kHz = 474.2 (WSPR-)Dial + 1068 Hz Offset. PA-test was successful + Tx-frequency should be stable enough, so we can have some fun ! 73 de dg3lv Tobias Am 18.12.2012 14:57, schrieb Rik Strobbe: > Hello Tobias, > > sorry, I didn't think of the lower offset (1000Hz) with JT9-10. > But I will stick to 501.4kHz TX frequency = 500.4kHz dial for 1000Hz audio. > I will start at 20:00UTC and initially go for 3 rounds (so 20:00-20:10 , 20:20-20:30 and 20:40-20:50). > It will be just for test purposes: > 1. check if my setup is stable enough for JT9-10. > 2. if there is significant TX (or RX) drift to provide some audio files for Joe (K1JT) > So those who will monitor my signal are encouraged to save audio files of the transmissions and eventually send them to Joe. > > 73, Rik ON7YD - OR7T > > ________________________________________ > Van: Tobias DG3LV [DG3LV@gmx.net] > Verzonden: dinsdag 18 december 2012 12:41 > To: Rik Strobbe > Onderwerp: Re: LF: JT9-10 @ 474 +1400 > > Hi Rik ! > > My station will be running. Please specify "tonight" more precisely. I > will try to sync on your signal and transmit/reply on the 475 kHz band. > Conditions seem to be very good these days as i was heard by OH5YW and > EI0CF during daylight already (on WSPR) ! > > Please consider using a lower offset than 1400 Hertz on JT9-10, as Joe > has written : > > From Joe K1JT "WSJT-X_Users_Guide.pdf" : > > "3. The waterfall frequency range always starts at 1000 Hz. This means > that your on-the-air frequency range starts exactly 1 kHz above your > dial frequency. The upper frequency limit depends on JT9 sub-mode, the > setting of FFT bins/pixel, and the width of the waterfall graph. In > normal use the recommended audio frequency range is 1000–2000 Hz for > sub-modes JT9-1 and JT9-2, 1000–1300 Hz for JT9-5, 1000–1150 Hz for > JT9-10, and 1000–1050 Hz for JT9-30." > > I do not have much experience with with JT9-10 yet, so I cannot tell > whether the above text is a recommendation or a must. > > The "wide graph" window is automatically zoomed when using JT9-10, so > the absolute maximum Offset would be 1240 Hertz at 1 FFT bins/pixel. > > See you tonite ! > > 73 de dg3lv Tobias > > > Am 18.12.2012 09:10, schrieb Rik Strobbe: >> Hello Joe, all, >> >> if there are some "takers" I could do some JT9-10 transmission tonight on 501.4kHz (500kHz dial) starting 20 UTC. >> >> The setup here is a Kenwood TS440 transmitting on 3.5MHz mixed with 3MHz xtal osc. down to 500kHz, filtered and amplified to 6W RF (estimated 20mW ERP). >> With this setup I was copied up to 1600km (OH) in JT9-1 and JT9-2. >> >> It would be interesting to know if the frequency stability such a basic setup is OK for JT9-10. >> >> 73, Rik ON7YD - OR7T >> >> ________________________________________ >> Van: owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.org] namens Joe Taylor [joe@Princeton.EDU] >> Verzonden: maandag 17 december 2012 23:47 >> To: rsgb_lf_group@blacksheep.org >> Onderwerp: Re: LF: JT9-10 @ 474 +1400 >> >> Hi Laurence, Steinar, and all, >> >> On 12/17/2012 5:15 PM, Laurence KL1 X wrote: >>> Steinar I was getting some reasonable syncs but appeared not >>> stable enough - so that confirms it :-) Laurence KL 1 X >> >> LA5VNA wrote: >>>> Thanks Tobias. The conclusion is clear , my system in NOT stable enough >>>> when using JT9-10. Pity , but that's life ;( >> >> Please send me an example of a JT9-10 file that seems like it should >> have decoded, but did not. NOBODY has yet done so. I am reasonably >> sure that small amounts of frequency drift can be detected and >> adequately compensated in software... but I can't do it without some >> typical examples. >> >> If you know it, it will help to have, along with the file, the message >> that was being transmitted. >> >> Note to all: I am presently working on a version or WSPR that will allow >> transmissions of length 10 (or 15?) and 30 minutes, with other features >> like the traditional WSPR. Sensitivity should be as good as the WSPR-8 >> and WSPR-32 tests made by Marcus (and others). >> >> -- 73, Joe, K!JT >> >