Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by klubnl.pl (8.14.4/8.14.4/Debian-8+deb8u2) with ESMTP id wBUAeNnB030693 for ; Sun, 30 Dec 2018 11:40:25 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1gdYTJ-0001ku-Dq for rs_out_1@blacksheep.org; Sun, 30 Dec 2018 10:37:29 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1gdYTJ-0001kl-4E for rsgb_lf_group@blacksheep.org; Sun, 30 Dec 2018 10:37:29 +0000 Received: from rhcavuit04.kulnet.kuleuven.be ([2a02:2c40:0:c0::25:137]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91_59-0488984) (envelope-from ) id 1gdYTH-0000Yi-Mm for rsgb_lf_group@blacksheep.org; Sun, 30 Dec 2018 10:37:28 +0000 X-KULeuven-Envelope-From: rik.strobbe@kuleuven.be X-KULeuven-Scanned: Found to be clean X-KULeuven-ID: 28895120003.A4BD2 X-KULeuven-Information: Katholieke Universiteit Leuven Received: from icts-p-smtps-2.cc.kuleuven.be (icts-p-smtps-2e.kulnet.kuleuven.be [134.58.240.34]) by rhcavuit04.kulnet.kuleuven.be (Postfix) with ESMTP id 28895120003 for ; Sun, 30 Dec 2018 11:37:26 +0100 (CET) Received: from ICTS-S-EXMBX19.luna.kuleuven.be (icts-s-exmbx19.luna.kuleuven.be [10.112.11.50]) (using TLSv1.2 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by icts-p-smtps-2.cc.kuleuven.be (Postfix) with ESMTPS id 1BDFA20006; Sun, 30 Dec 2018 11:37:26 +0100 (CET) Received: from ICTS-S-EXMBX26.luna.kuleuven.be (10.112.11.61) by ICTS-S-EXMBX19.luna.kuleuven.be (10.112.11.50) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Sun, 30 Dec 2018 11:37:25 +0100 Received: from ICTS-S-EXMBX27.luna.kuleuven.be (10.112.11.62) by ICTS-S-EXMBX26.luna.kuleuven.be (10.112.11.61) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Sun, 30 Dec 2018 11:37:25 +0100 Received: from ICTS-S-EXMBX27.luna.kuleuven.be ([fe80::291a:cc4f:6953:698a]) by ICTS-S-EXMBX27.luna.kuleuven.be ([fe80::291a:cc4f:6953:698a%25]) with mapi id 15.00.1395.000; Sun, 30 Dec 2018 11:37:25 +0100 X-Kuleuven: This mail passed the K.U.Leuven mailcluster From: Rik Strobbe To: Andy - KU4XR CC: "rsgb_lf_group@blacksheep.org" , "rsgb-lf-group@groups.io" , "600MRG@mailman.qth.net" <600MRG@mailman.qth.net>, "rsgb_lf_group@yahoogroups.co.uk" Thread-Topic: SlowJT9 frequency limits Thread-Index: AQHUoCunHGDXhUyZH0m+Jg6WIRGh8Q== Date: Sun, 30 Dec 2018 10:37:25 +0000 Message-ID: <1546166245421.74053@kuleuven.be> References: <1163496128.11742920.1546132443142.ref@mail.yahoo.com>,<1163496128.11742920.1546132443142@mail.yahoo.com> In-Reply-To: <1163496128.11742920.1546132443142@mail.yahoo.com> Accept-Language: nl-BE, en-GB, en-US Content-Language: nl-BE X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.112.50.1] MIME-Version: 1.0 X-Spam-Score: -2.3 (--) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see @@CONTACT_ADDRESS@@ for details. Content preview: Hi Andy, the current upper frequency limits are 1400Hz for JT9-1 and JT9-2 and 840Hz for JT9-5. The limits for JT9-1 and JT9-2 were set just to avoid unintentional JT9 transmissions in the WSPR band (for 474.2 [...] Content analysis details: (-2.3 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at http://www.dnswl.org/, medium trust [2a02:2c40:0:c0:0:0:25:137 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record X-Scan-Signature: 086f3faad0220c9ae57a7913e711a86d Subject: LF: SlowJT9 frequency limits Content-Type: text/plain; charset="iso-8859-1" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none 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 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by klubnl.pl id wBUAeNnB030693 Hi Andy, the current upper frequency limits are 1400Hz for JT9-1 and JT9-2 and 840Hz for JT9-5. The limits for JT9-1 and JT9-2 were set just to avoid unintentional JT9 transmissions in the WSPR band (for 474.2kHz or 136.0kHz dial). The JT9-5 limit os due to the resampling in combination with the 5kHz upper limit of the JT9 decoder. Meanwhile I learned that on 136kHz several stations use a lower dial frequency to avoid the DCF39 QRM, so I intend to lift the current upper frequency limit of JT9-1 (will be 5000Hz then) and JT9-2 (will be 2250Hz due to the resampling) in the next release of SlowJT9. Together with Markus, DF6NM, and Wolf, DL4YHF, I will try to find a way to allow higher frequencies (above 840 Hz) for JT9-5 and JT9-10 as well. At this moment the lower frequency limit is 400Hz, but that will be lifted too. 73, Rik ON7YD - OR7T ________________________________________ Van: Andy - KU4XR Verzonden: zondag 30 december 2018 2:14 Aan: Rik Strobbe Onderwerp: Maximum Audio Frequency for each Mode Hi Rik: I was not aware of a frequency limit for each mode.. Will you post to the lists the Maximum Audio Frequency for each mode ? I think this will be useful information for other operators also.. Thanks for your work on SlowJT9.. 73: Andy - KU4XR