Return-Path: Received: from mtain-dc09.r1000.mx.aol.com (mtain-dc09.r1000.mx.aol.com [172.29.64.137]) by air-ma06.mail.aol.com (v126.13) with ESMTP id MAILINMA063-b52a4b60aa50c6; Wed, 27 Jan 2010 16:04:16 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-dc09.r1000.mx.aol.com (Internet Inbound) with ESMTP id C7494380001BA; Wed, 27 Jan 2010 16:04:12 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1NaF2t-0004sS-39 for rs_out_1@blacksheep.org; Wed, 27 Jan 2010 21:03:27 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1NaF2s-0004sI-KY for rsgb_lf_group@blacksheep.org; Wed, 27 Jan 2010 21:03:26 +0000 Received: from mail-px0-f187.google.com ([209.85.216.187]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1NaF2p-0006Zf-Tw for rsgb_lf_group@blacksheep.org; Wed, 27 Jan 2010 21:03:26 +0000 Received: by pxi17 with SMTP id 17so9788243pxi.30 for ; Wed, 27 Jan 2010 13:03:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:mime-version:sender:received:in-reply-to :references:date:x-google-sender-auth:message-id:subject:from:to :content-type; bh=O+U/iWSXQZ3Rs/Sdvxx3lxNAlQHeg8SjWDB8JGdBL4w=; b=kHYHWdV9JKhWWRJQ00RRxyDTP8FQS8vu5yNNbL1r3l36DWLxCota+pikxWEUId4c1Z MssjQkDgWetMebnt3fkKs4hwd7uHPWpAUs/6wiev9A9GZNINwa9ZU1vc3lrb01IZxxu4 fj9nSBMq0x7w7UdpLrHRHCZEpOE2V7fnsEQuY= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:content-type; b=BXkDXyVStTAkeq17fXp44GbqqmHR6FarX8G9f15xF/sCjsvAvN2bcxJhTI4YtH/uQj 1JOZmKRwI5M6tbdutSZyHmdLHGoRM0ffOoLRzxh9WPVZ/EvsX/dYjcsrA8jQbkDUW70g BPVxQnI9sOcfx7X7aZLn9VE+TYUuEcvqXzVow= MIME-Version: 1.0 Received: by 10.141.23.17 with SMTP id a17mr23856rvj.157.1264626195795; Wed, 27 Jan 2010 13:03:15 -0800 (PST) In-Reply-To: References: <1f0624b91001271133g22391461tfa8dc9a87c8f14d4@mail.gmail.com> Date: Wed, 27 Jan 2010 21:03:15 +0000 X-Google-Sender-Auth: 807d37cfe9b1fa4b Message-ID: <1f0624b91001271303v1eb7094bp659dba8418585e81@mail.gmail.com> From: Gary - G4WGT To: rsgb_lf_group@blacksheep.org DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: Re: LF: RE: 500 kHz JT4A Content-Type: multipart/alternative; boundary=000e0cd1a5882c9189047e2bbb9a 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 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: 3039ac1d40894b60aa4c0354 X-AOL-IP: 193.82.116.20 X-Mailer: Unknown (No Version) --000e0cd1a5882c9189047e2bbb9a Content-Type: text/plain; charset=ISO-8859-1 Rik, & Andy, Thanks for your report & comments & Andy for answering Rik's query. Well there has not been any response to my CQ call so I will change the text to beacon & continue to see if there is a report from further afield. If you want to try for a weak decode I can reduce the power for a short period say 30 minutes, my power is 50 watt RF (200 mW ERP) at the moment so in view of your good report I could take it down to 10 watts RF. Let me know. 73, Gary - G4WGT - IO83qo 2010/1/27 Andy Talbot > -24dB S/N (2.5kHz ) is usually guaranteed > > Andy > www.g4jnt.com > > This email has been scanned for damaging side-effects by the health and > safety police, is guaranteed to contain no substances hazardous to health, > but may contribute to dissolving the nether and polar regions > > > 2010/1/27 Rik Strobbe > > Gary, >> >> solid copy here, SNR -5 to -7dB. >> But the signal is clearly audible, CW would be armchair copy. >> Any idea down to what SNR values JT4A produces a usable decoding ? >> >> 73, Rik ON7YD - OR7T >> ------------------------------ >> *Van:* owner-rsgb_lf_group@blacksheep.org [ >> owner-rsgb_lf_group@blacksheep.org] namens Gary - G4WGT [ >> g4wgt@tiscali.co.uk] >> *Verzonden:* woensdag 27 januari 2010 20:33 >> *Aan:* Rsgb_Lf_Group >> *Onderwerp:* LF: 500 kHz JT4A >> >> LF, >> >> Running JT4A this evening on 503.600 kHz, dial frequency 502.300 kHz USB. >> >> 73, Gary - G4WGT - IO83qo >> > > --000e0cd1a5882c9189047e2bbb9a Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Rik, & Andy,

Thanks for your report & comments= & Andy for answering Rik's query.

Well= there has not been any response to my CQ call so I will change the text= to beacon & continue to see if there is a report from further afield.=

If you want to try for a weak decode I can reduce the= power for a short period say 30 minutes, my power is 50 watt RF (200 mW= ERP) at the moment so in view of your good report I could take it down to= 10 watts RF.

Let me know.

73, Gary - G4WGT= - IO83qo

2010/1/27 Andy Talbot <andy.g4jnt@goog= lemail.com>
-24dB S/N (2.5kHz )=A0 is usually gu= aranteed

Andy
www.g4jnt.com

This email has been scanned for damaging= side-effects by the health and safety police, is guaranteed to contain no= substances hazardous to health, but may contribute to dissolving the neth= er and polar regions


2010/1/27 Rik Strobbe <Rik.Strobbe= @fys.kuleuven.be>

Gary,<= /font>
=A0
solid copy here, SNR -5= to -7dB.
But the signal is clearl= y audible, CW would be armchair copy.
Any idea down to what SN= R values JT4A produces a usable decoding ?
=A0
73, Rik=A0 ON7YD - OR7T<= /font>
Van: owner-rsgb_lf_group@blacksheep.= org [owner-rsgb_lf_group@blacksheep.org] namens Gary - G4WGT [g4wgt@tiscali.co.uk= ]
Verzonden: woensdag 27 januari 2010 20:33
Aan: Rsgb_Lf_Gr= oup
Onderwerp: LF: 500 kHz JT4A

LF,=20

Running JT4A this evening on 503.600 kHz, dial frequency 502.300 kHz= USB.

73, Gary - G4WGT - IO83qo
<= /div>

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