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[195.171.43.25]) by mx.google.com with ESMTP id t10si254619wiw.7.2013.10.24.07.44.25 for ; Thu, 24 Oct 2013 07:44:25 -0700 (PDT) Received-SPF: neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) client-ip=195.171.43.25; Authentication-Results: mx.google.com; spf=neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) smtp.mail=owner-rsgb_lf_group@blacksheep.org Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1VZLsU-0002N9-S6 for rs_out_1@blacksheep.org; Thu, 24 Oct 2013 15:27:10 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1VZLsU-0002N0-Bz for rsgb_lf_group@blacksheep.org; Thu, 24 Oct 2013 15:27:10 +0100 Received: from relay.uni-heidelberg.de ([129.206.100.212]) by relay1.thorcom.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.77) (envelope-from ) id 1VZLsS-0001nW-Et for rsgb_lf_group@blacksheep.org; Thu, 24 Oct 2013 15:27:09 +0100 Received: from freitag.iup.uni-heidelberg.de (freitag.iup.uni-heidelberg.de [129.206.29.204]) by relay.uni-heidelberg.de (8.14.1/8.14.1) with ESMTP id r9OER76B016469 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Thu, 24 Oct 2013 16:27:07 +0200 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 r9OER6bV002255 for ; Thu, 24 Oct 2013 16:27:06 +0200 Message-ID: <52692E36.8090208@iup.uni-heidelberg.de> Date: Thu, 24 Oct 2013 16:27:02 +0200 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: <52690694.4050002@iup.uni-heidelberg.de> <307765.6593.qm@web100011.mail.kks.yahoo.co.jp> In-Reply-To: <307765.6593.qm@web100011.mail.kks.yahoo.co.jp> X-Spam-Score: -1.1 (-) 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 Yas, 2FSK, ooh. And this works?? Obviously.. But why not the real WSPR? Probably there is no TX converter available? I just thought about an analog circuit to modulate the xtal frequency of a normal VFO, using a varicap diode and a high Q resonance circuit, to allow TXing WSPR. Could work.. [...] Content analysis details: (-1.1 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [129.206.100.212 listed in list.dnswl.org] -0.4 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: da9a90c67b7e22f6718c156d8d99c1a4 Subject: Re: LF: JA7NI in WSPR-15 Content-Type: multipart/alternative; boundary="------------070209040101070404090308" 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_20_30,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 Status: O X-Status: X-Keywords: X-UID: 2379 This is a multi-part message in MIME format. --------------070209040101070404090308 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by relay.uni-heidelberg.de id r9OER76B016469 Hi Yas, 2FSK, ooh. And this works?? Obviously.. But why not the real WSPR?=20 Probably there is no TX converter available? I just thought about an=20 analog circuit to modulate the xtal frequency of a normal VFO, using a=20 varicap diode and a high Q resonance circuit, to allow TXing WSPR. Could=20 work.. Yas, are you ready for OPDS now? Today seems to be much better propagation to JA again. There is a first=20 promising 10 dB SNR peak at 13:40 UTC!! If this continuea as expected,=20 there could be a 30 dB SNR peak at 16 UTC! But first another dip will=20 come arround 15 UTC, i.e. soon :-) I will continue to try in WSPR-15 on 137.610 kHz. 73, Stefan/DK7FC Am 24.10.2013 13:55, schrieb Knight Ao: > Hi Stefan, > > JA7NI is using 2FSK instead of 4FSK WSPR. JH1GVY has devised a method=20 > that can utilize a DFCW tx to transmit quasi WSPR2. The 2FSK WSPR=20 > seems to be 3-5dB weaker, especially when there is QRN/QRM. Even so,=20 > KL7L and UA0SNV/UA0AET might have a chance of receiving, but I don't=20 > think he is receiving WSPR for the time being. > > Yas - Tokyo > > ----- Original Message ----- > *From:* Stefan Sch=E4fer > *To:* rsgb_lf_group@blacksheep.org > *Cc:* Vasily Savchenko > *Date:* 2013/10/24, Thu 20:37 > *Subject:* LF: JA7NI in WSPR-15 > > LF, > > This morning i saw JA7NI on the WSPR database/map. As far as i > know he was only QRV in QRSS/DFCW/CW during all the years. Maybe > the very high number of active WSPR stns in JA convinced him to > try this mode. > So far there were just "local" decodes, not sure if it was a QRP > test. But it could be interesting for UA0SNV, KL7L and DU1GM? > Maybe even interesting for me, if he is receiving :-) > > 73, Stefan/DK7FC > > > --------------070209040101070404090308 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Hi Yas,

2FSK, ooh. And this works?? Obviously.. But why not the real WSPR? Probably there is no TX converter available? I just thought about an analog circuit to modulate the xtal frequency of a normal VFO, using a varicap diode and a high Q resonance circuit, to allow TXing WSPR. Could work..

Yas, are you ready for OPDS now?
Today seems to be much better propagation to JA again. There is a first promising 10 dB SNR peak at 13:40 UTC!! If this continuea as expected, there could be a 30 dB SNR peak at 16 UTC! But first another dip will come arround 15 UTC, i.e. soon :-)
I will continue to try in WSPR-15 on 137.610 kHz.

73, Stefan/DK7FC


Am 24.10.2013 13:55, schrieb Knight Ao:
Hi Stefan,

JA7NI is using 2FSK instead of 4FSK WSPR.  JH1GVY has devised a method that can utilize a DFCW tx to transmit quasi WSPR2.  The 2FSK WSPR seems to be 3-5dB weaker, especially when there is QRN/QRM.  Even so, KL7L and UA0SNV/UA0AET might have a chance of receiving, but I don't think he is receiving WSPR for the time being. 

Yas - Tokyo

----- Original Message -----
From: Stefan Schäfer <Stefan.Schaefer@iup.uni-heidelberg.de>
To: rsgb_lf_group@blacksheep.org
Cc: Vasily Savchenko <ua0snv@yahoo.com>
Date: 2013/10/24, Thu 20:37
Subject: LF: JA7NI in WSPR-15

LF,

This morning i saw JA7NI on the WSPR database/map. As far as i know he was only QRV in QRSS/DFCW/CW during all the years. Maybe the very high number of active WSPR stns in JA convinced him to try this mode.
So far there were just "local" decodes, not sure if it was a QRP test. But it could be interesting for UA0SNV, KL7L and DU1GM? Maybe even interesting for me, if he is receiving :-)

73, Stefan/DK7FC



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