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 wACL7EZF028690 for ; Mon, 12 Nov 2018 22:07:15 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1gMJLx-00045w-Qu for rs_out_1@blacksheep.org; Mon, 12 Nov 2018 21:02:37 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1gMJKS-00043C-AW for rsgb_lf_group@blacksheep.org; Mon, 12 Nov 2018 21:01:04 +0000 Received: from rhcavuit02.kulnet.kuleuven.be ([2a02:2c40:0:c0::25:130]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91_59-0488984) (envelope-from ) id 1gMJKQ-0002la-3r for rsgb_lf_group@blacksheep.org; Mon, 12 Nov 2018 21:01:03 +0000 X-KULeuven-Envelope-From: rik.strobbe@kuleuven.be X-KULeuven-Scanned: Found to be clean X-KULeuven-ID: 1DA6D12002D.A2838 X-KULeuven-Information: Katholieke Universiteit Leuven Received: from icts-p-smtps-1.cc.kuleuven.be (icts-p-smtps-1e.kulnet.kuleuven.be [134.58.240.33]) by rhcavuit02.kulnet.kuleuven.be (Postfix) with ESMTP id 1DA6D12002D for ; Mon, 12 Nov 2018 22:01:00 +0100 (CET) Received: from ICTS-S-EXMBX24.luna.kuleuven.be (icts-s-exmbx24.luna.kuleuven.be [10.112.11.59]) (using TLSv1.2 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by icts-p-smtps-1.cc.kuleuven.be (Postfix) with ESMTPS id 0EB3C40B4 for ; Mon, 12 Nov 2018 22:01:00 +0100 (CET) Received: from ICTS-S-EXMBX27.luna.kuleuven.be (10.112.11.62) by ICTS-S-EXMBX24.luna.kuleuven.be (10.112.11.59) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 12 Nov 2018 22:00:59 +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; Mon, 12 Nov 2018 22:01:00 +0100 X-Kuleuven: This mail passed the K.U.Leuven mailcluster From: Rik Strobbe To: "rsgb_lf_group@blacksheep.org" Thread-Topic: LF: SlowJT9 v0.9.02 Thread-Index: AQHUeqCWAdNbBbcg7k6CVkM+dmLa26VMXf0AgAArkkL///iVAIAACC+AgAAVAYQ= Date: Mon, 12 Nov 2018 21:00:59 +0000 Message-ID: <1542056459606.54490@kuleuven.be> References: <0ddf61c2-de83-aeef-f929-a87b698f560c@n1bug.com> <1542028810096.76526@kuleuven.be> <1542038390327.50768@kuleuven.be> <1542052074466.76606@kuleuven.be> <17488f94-c94d-a83f-f268-1fd335872b35@n1bug.com>, In-Reply-To: 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: -0.7 (/) 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: ? Hello Eric, all, arecord -c 1 -r 12000 -f S16_LE capture.wav sox capture.wav capture_tmp.wav speed 2.0 jt9 -9 -d 3 -S 300 capture_tmp.wav cat decoded.txt [...] Content analysis details: (-0.7 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [2a02:2c40:0:c0:0:0:25:130 listed in] [list.dnswl.org] -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -0.0 SPF_PASS SPF: sender matches SPF record 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: 4a8faa6952847c1ec651f883b63fc053 Subject: Re: LF: SlowJT9 v0.9.02 Content-Type: multipart/alternative; boundary="_000_154205645960654490kuleuvenbe_" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=HTML_30_40,HTML_MESSAGE, TO_ADDRESS_EQ_REAL 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 --_000_154205645960654490kuleuvenbe_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable ? Hello Eric, all, arecord -c 1 -r 12000 -f S16_LE capture.wav sox capture.wav capture_tmp.wav speed 2.0 jt9 -9 -d 3 -S 300 capture_tmp.wav cat decoded.txt That is amost exactly what I am doing in SlowJT9, just in a more fancy (use= r friendly) way ;-) Does the speeding-up includes averaging ? 73, Rik ON7YD - OR7T ________________________________________ Van: owner-rsgb_lf_group@blacksheep.org namens Eric NO3M Verzonden: maandag 12 november 2018 21:42 Aan: rsgb_lf_group@blacksheep.org Onderwerp: Re: LF: SlowJT9 v0.9.02 Paul, et.al. Correct, the original timings were fit into a "window" vs. simple scaling. Since the slowJT exe wouldn't run in WINE, I just ran a few commands to decode K5DNL: arecord -c 1 -r 12000 -f S16_LE capture.wav sox capture.wav capture_tmp.wav speed 2.0 jt9 -9 -d 3 -S 300 capture_tmp.wav cat decoded.txt decoded.txt: 0000 1 -26 0.1 2400. 1 VVV DE K5DNL JT9 jt9 is the standard executable decoder from WSJTX v1.9.1. 73 Eric NO3M On 11/12/18 3:12 PM, N1BUG wrote: > Eric brings up a good point. Forget what I said the other day about > beaconing with a U3S to be received by SlowJT9. I believe that won't > work because the U3S uses the original JT9-2, -5, -10, -30 symbol > lengths which are different. > > Probably (a guess) in the original, symbol lengths were chosen to > fill as much of the period as possible while leaving enough time at > the end for decoding. I would further guess there were specific > decoders for each submode, or one decoder whose parameters could be > modified for the current submode. > > 73, > Paul N1BUG > > > On 11/12/18 2:47 PM, Rik Strobbe wrote: >> Hello Eric, >> >> >> yes, a scale factor of 2 and 5 is used. >> >> I hadn't any information about the old JT9-2 and JT9-5 modes and >> those scale factors seemed the most straightforward to me and >> make the conversion to JT9 easy. >> >> >> 73, Rik ON7YD - OR7T >> >> >> >> --_000_154205645960654490kuleuvenbe_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

​

Hello Eric, all,

arecord -c 1 -r 12000 -f S16_LE capture.wav
sox capture.wav capture_tmp.wav speed 2.0=
jt9 -9 -d 3 -S 300 capture_tmp.wav
cat decoded.txt

That is amost exactly what I am doing in SlowJT9, just in a more = fancy (user friendly) way ;-)
Does the speeding-up includes averaging ?

73, Rik  ON7YD - OR7T

________________________________________
Van: owner-rsgb_lf_group@blacksheep.org <owner-rsgb_lf_group@blacksheep.= org> namens Eric NO3M <no3m@no3m.net>
Verzonden: maandag 12 november 2018 21:42
Aan: rsgb_lf_group@blacksheep.org
Onderwerp: Re: LF: SlowJT9 v0.9.02

Paul, et.al.

Correct, the original timings were fit into a "window" vs. simple=
scaling.  Since the slowJT exe wouldn't run in WINE, I just ran a few<= br> commands to decode K5DNL:

arecord -c 1 -r 12000 -f S16_LE capture.wav
sox capture.wav capture_tmp.wav speed 2.0
jt9 -9 -d 3 -S 300 capture_tmp.wav
cat decoded.txt

decoded.txt:
0000   1  -26   0.1   2400.   = 1   VVV DE K5DNL        &= nbsp;  JT9

jt9 is the standard executable decoder from WSJTX v1.9.1.

73 Eric NO3M

On 11/12/18 3:12 PM, N1BUG wrote:
> Eric brings up a good point. Forget what I said the other day about > beaconing with a U3S to be received by SlowJT9. I believe that won't > work because the U3S uses the original JT9-2, -5, -10, -30 symbol
> lengths which are different.
>
> Probably (a guess) in the original, symbol lengths were chosen to
> fill as much of the period as possible while leaving enough time at > the end for decoding. I would further guess there were specific
> decoders for each submode, or one decoder whose parameters could be > modified for the current submode.
>
> 73,
> Paul N1BUG
>
>
> On 11/12/18 2:47 PM, Rik Strobbe wrote:
>> Hello Eric,
>>
>>
>> yes, a scale factor of 2 and 5 is used.
>>
>> I hadn't any information about the old JT9-2 and JT9-5 modes and >> those scale factors seemed the most straightforward to me and
>> make the conversion to JT9 easy.
>>
>>
>> 73, Rik  ON7YD - OR7T
>>
>>
>>
>>


--_000_154205645960654490kuleuvenbe_--