Return-Path: Received: from mtain-mg04.r1000.mx.aol.com (mtain-mg04.r1000.mx.aol.com [172.29.96.204]) by air-di02.mail.aol.com (v126.13) with ESMTP id MAILINDI023-eabc4b60a3a929; Wed, 27 Jan 2010 15:35:53 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-mg04.r1000.mx.aol.com (Internet Inbound) with ESMTP id 48CE8380000AB; Wed, 27 Jan 2010 15:35:51 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1NaEbA-0004Qj-Ij for rs_out_1@blacksheep.org; Wed, 27 Jan 2010 20:34:48 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1NaEbA-0004Qa-5E for rsgb_lf_group@blacksheep.org; Wed, 27 Jan 2010 20:34:48 +0000 Received: from mail-fx0-f219.google.com ([209.85.220.219]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1NaEb8-0006Fb-1H for rsgb_lf_group@blacksheep.org; Wed, 27 Jan 2010 20:34:48 +0000 Received: by fxm19 with SMTP id 19so133824fxm.29 for ; Wed, 27 Jan 2010 12:34:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type; bh=ldblIsmm6ow3bAP6aNb6omCMwtVaL0ggy5onn/Rcy1I=; b=IHlvesKE3BZhn6zzDb7g2JfZYRG1POxWZpQ6lCdYWkV+r5cFURznIcqjp3QXKW1+ra mA8I8ZPyszTBVThymCZPUmeQMzD5OgwZHq+dHd6HYwsjjndNO3cf/kHxhJVsCf3SFWaR 0jtgAXoI1gtQl1F9GfE5pS9Hdnrss9OcroFx0= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=PUicFdIZ6sM/+DmmCvmy5qEyTGyvX5lKLAz+5MUyRGqftezBpohFZiaAF3gNSKXXaO TQI74IHAa808Evr+l+hrUz5F6Ns3vCFyi540EJr4XUEvgumm64fNdcNTwKj22Ao60DU+ bmEZJ6Mxy75C973b1CWqOC3JEMsHASdWuu7Ts= MIME-Version: 1.0 Received: by 10.239.188.199 with SMTP id q7mr1126726hbh.12.1264624477605; Wed, 27 Jan 2010 12:34:37 -0800 (PST) In-Reply-To: References: <1f0624b91001271133g22391461tfa8dc9a87c8f14d4@mail.gmail.com> Date: Wed, 27 Jan 2010 20:34:37 +0000 Message-ID: From: Andy Talbot 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=001485f1e762c31129047e2b545b 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: 3039ac1d60cc4b60a3a77668 X-AOL-IP: 193.82.116.20 X-Mailer: Unknown (No Version) --001485f1e762c31129047e2b545b Content-Type: text/plain; charset=ISO-8859-1 -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 > --001485f1e762c31129047e2b545b Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
-24dB S/N (2.5kHz )=A0 is usually guaranteed

Andy
www.g4jnt.= com

This email has been scanned for damaging side-effects by th= e health and safety police, is guaranteed to contain no substances hazardo= us to health, but may contribute to dissolving the nether and polar region= s


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

--001485f1e762c31129047e2b545b--