Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dc04.r1000.mx.aol.com (Internet Inbound) with ESMTP id 1EF233800008C; Sun, 28 Oct 2012 20:14:31 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1TSczK-0002rN-LA for rs_out_1@blacksheep.org; Mon, 29 Oct 2012 00:13:54 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1TSczK-0002rE-4r for rsgb_lf_group@blacksheep.org; Mon, 29 Oct 2012 00:13:54 +0000 Received: from relay2.uni-heidelberg.de ([129.206.210.211]) by relay1.thorcom.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.77) (envelope-from ) id 1TSczH-0004tp-LL for rsgb_lf_group@blacksheep.org; Mon, 29 Oct 2012 00:13:53 +0000 Received: from freitag.iup.uni-heidelberg.de (freitag.iup.uni-heidelberg.de [129.206.29.204]) by relay2.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id q9T0Dp5t018035 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Mon, 29 Oct 2012 01:13:51 +0100 Received: from [129.206.22.206] (pc206.iup.uni-heidelberg.de [129.206.22.206]) by freitag.iup.uni-heidelberg.de (8.12.11.20060308/8.11.2) with ESMTP id q9T0DoAc014915 for ; Mon, 29 Oct 2012 01:13:50 +0100 Message-ID: <508DCA38.2050404@iup.uni-heidelberg.de> Date: Mon, 29 Oct 2012 01:13:44 +0100 From: =?ISO-8859-1?Q?Stefan_Sch=E4fer?= User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <508D47B2.8060209@iup.uni-heidelberg.de> <46A9A1D9FC954A658216B197782524BF@White> <891CD59233F844C283BAC09A2AAA04BA@White> <508D6A9D.4020600@iup.uni-heidelberg.de> <508D6C1A.7050607@iup.uni-heidelberg.de> <508D8084.6020501@freenet.de> <508D8295.8010604@broadpark.no> <508D84F0.1000706@freenet.de> <508DBE08.6070302@iup.uni-heidelberg.de> <99D10C7F6D63477EB157A76D7979F740@White> In-Reply-To: <99D10C7F6D63477EB157A76D7979F740@White> X-Spam-Score: -2.9 (--) 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: Thank you Markus, Your email lead me to my settings of VAC. The possible samplerate was limited to 22050...48000 Hz. Now i changed to 8000...48000 Hz. Does that make a change? Is someone still awake who is watching on that QRG? Now decodes? [...] Content analysis details: (-2.9 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at http://www.dnswl.org/, medium trust [129.206.210.211 listed in list.dnswl.org] -0.6 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: 9b622d5c6a961580a0f289e85f67bcca Subject: Re: LF: no decodes, help needed Content-Type: multipart/alternative; boundary="------------080707080407060808040502" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.5 required=5.0 tests=HTML_40_50,HTML_MESSAGE 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: 3039ac1d4084508dca672c5c X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. --------------080707080407060808040502 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by relay2.uni-heidelberg.de id q9T0Dp5t018035 Thank you Markus, Your email lead me to my settings of VAC. The possible samplerate was=20 limited to 22050...48000 Hz. Now i changed to 8000...48000 Hz. Does that make a change? Is someone still awake who is watching on that=20 QRG? Now decodes? Let me add a significant number of dBs now. 73, Stefan/DK7FC Am 29.10.2012 00:39, schrieb Markus Vester: > Stefan, > five watts to a good antenna has been known to work wonders ;-) > Actually virtual audio cable could possibly be the culprit. The newer=20 > version 4.xx can resample between different samplerates (12000 from=20 > wsjtx to 48000 for Speclab?), and may apply some smart=20 > interpolation which tries to keep the buffers at more or less constant=20 > length. This could indeed create some nondeterministic jitter,=20 > perturbing the MFSK demodulation. I have so far only used the older=20 > VAC 3 here, but this only works with identical samplerate and format=20 > at input and output. > Best 73, > Markus (DF6NM) > > *From:* Stefan Sch=E4fer > *Sent:* Monday, October 29, 2012 12:21 AM > *To:* rsgb_lf_group@blacksheep.org > *Subject:* Re: LF: no decodes, help needed > > Wolf, > > I am audible on LF with 5W TX power? That is 240 km (ish). Really? > > 73, Stefan > > Am 28.10.2012 20:18, schrieb wolf_dl4yhf: > > > > Am 28.10.2012 20:08, schrieb Steinar Aanesland: > >> Wolf, The freq is still 136.000 + 1430Hz ? > > Yes, WSJT-X reports 1430 Hz with the HF radio tuned to 136.000 kHz in > > USB. > > > > Transmitting every 2nd 2-minute interval. > > > > But I didn't get a decoded callsign for some time now. Sync points > > between 0 and 3. > > Signal still audible here in JO42 . > > > > 73, Wolf . > > > >> LA5VNA Steinar > >> loc:JO59jq > >> Mal and spam filtering: STRONG > >> www.opera.no > >> > >> > > > --------------080707080407060808040502 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Thank you Markus,

Your email lead me to my settings of VAC. The possible samplerate was limited to 22050...48000 Hz. Now i changed to 8000...48000 Hz.

Does that make a change? Is someone still awake who is watching on that QRG? Now decodes?

Let me add a significant number of dBs now.

73, Stefan/DK7FC


Am 29.10.2012 00:39, schrieb Markus Vester:
Stefan,
 
five watts to a good antenna has been known to work wonders ;-)
 
Actually virtual audio cable could possibly be the culprit. The newer version 4.xx can resample between different samplerates (12000 from wsjtx to 48000 for Speclab?), and may apply some smart interpolation which tries to keep the buffers at more or less constant length. This could indeed create some nondeterministic jitter, perturbing the MFSK demodulation. I have so far only used the older VAC 3 here, but this only works with identical samplerate and format at input and output.
 
Best 73,
Markus (DF6NM)

Sent: Monday, October 29, 2012 12:21 AM
Subject: Re: LF: no decodes, help needed

Wolf,

I am audible on LF with 5W TX power? That is 240 km (ish). Really?

73, Stefan

Am 28.10.2012 20:18, schrieb wolf_dl4yhf:
>
> Am 28.10.2012 20:08, schrieb Steinar Aanesland:
>> Wolf, The freq is still 136.000 + 1430Hz ?
> Yes, WSJT-X reports 1430 Hz with the HF radio tuned to 136.000 kHz in
> USB.
>
> Transmitting every 2nd 2-minute interval.
>
> But I didn't get a decoded callsign for some time now. Sync points
> between 0 and 3.
> Signal still audible here in JO42 .
>
> 73, Wolf .
>
>> LA5VNA Steinar
>> loc:JO59jq
>> Mal and spam filtering: STRONG
>> www.opera.no
>>
>>
>

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