Return-Path: Received: (qmail 15414 invoked from network); 26 Feb 2000 08:10:12 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by grants.core.plus.net.uk with SMTP; 26 Feb 2000 08:10:12 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.02 #1) id 12OcC5-0007k9-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 26 Feb 2000 08:03:17 +0000 Received: from irwell.zetnet.co.uk ([194.247.47.48] ident=root) by post.thorcom.com with esmtp (Exim 3.02 #1) id 12OcC4-0007k4-00 for rsgb_lf_group@blacksheep.org; Sat, 26 Feb 2000 08:03:16 +0000 Received: from oemcomputer (man-157.dialup.zetnet.co.uk [194.247.40.200]) by irwell.zetnet.co.uk (8.9.3/8.9.3/Debian/GNU) with SMTP id IAA29226 for ; Sat, 26 Feb 2000 08:03:06 GMT Message-ID: <002001bf8030$1813ce80$c828f7c2@oemcomputer> From: "John Rabson" To: rsgb_lf_group@blacksheep.org References: <1996011005584468199@zetnet.co.uk> Subject: LF: Re: Re: 136kHz weak signals Date: Sat, 26 Feb 2000 08:02:58 -0000 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Long Delay Echo? 73 de John Rabson G3PAI ----- Original Message ----- From: Peter Dodd To: Sent: Wednesday, January 10, 1996 5:58 AM Subject: LF: Re: 136kHz weak signals > ... I noticed another weak signal had been > recorded at around 137.740kHz. > > It turned out to be sending the same data as GM3YXM/P but with a > mystery delay timing difference of around three seconds. > > None of the signals was strong enough to cause non-linearity and > there was no evidence of soundcard 'AGC' action that you sometimes see. > > So is it some sort of strange propagation effect? Most likely some > image effect of the SW or soundcard- but why the time difference? >