Return-Path: Received: (qmail 980 invoked from network); 27 Apr 2002 21:45:50 -0000 Received: from unknown (HELO murphys-inbound.services.quay.plus.net) (212.159.14.225) by exhibition.plus.net with SMTP; 27 Apr 2002 21:45:50 -0000 Received: (qmail 19773 invoked from network); 27 Apr 2002 21:45:38 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys.services.quay.plus.net with SMTP; 27 Apr 2002 21:45:38 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 171Zzt-0001Mp-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 27 Apr 2002 22:44:49 +0100 Received: from mail4.dada.it ([195.110.96.56] helo=mail.dada.it) by post.thorcom.com with smtp (Exim 3.33 #2) id 171Zzs-0001MR-00 for rsgb_lf_group@blacksheep.org; Sat, 27 Apr 2002 22:44:48 +0100 Received: (qmail 11596 invoked from network); 27 Apr 2002 20:02:37 -0000 Received: from unknown (HELO cestag) (195.110.102.77) by mail.dada.it with SMTP; 27 Apr 2002 20:02:37 -0000 Message-ID: <000601c1ee26$5a061300$4d666ec3@cestag> From: "cesare tagliabue" To: rsgb_lf_group@blacksheep.org Subject: R: LF: Jason reception Date: Sat, 27 Apr 2002 22:01:41 +0200 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 4.72.3110.5 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: Hi Mike The armonics of the mains are generate out of my shack by electric appliances like dimmers etc. and i cannot filter, being just on the band. The 2750th armonic is walking around 137.5 Khz, because of the drift ( some mHz ) that is usually present in the mains. Fortunately this noise is not always present, some help is possible using a noise-canceller with an indoor antenna, in the case that we have only a source of noise. best 73 Cesare Cesare Tagliabue I 5 TGC WW-Loc JN53PS e-mail: cestag@dada.it url: http://www.dadacasa.com/i5tgc -----Messaggio originale----- Da: WE0H A: rsgb_lf_group@blacksheep.org Data: sabato 27 aprile 2002 21.05 Oggetto: RE: LF: Jason reception >Why not use a 50hz comb filter to eliminate the harmonics of the mains??? I >have a 60hz comb filter kit that I am building to help out in the US. >73's, >Mike>WE0H >http://www.geocities.com/we0h/lf.html > >-----Original Message----- >From: majordom@post.thorcom.com [mailto:majordom@post.thorcom.com]On Behalf >Of cesare tagliabue >Sent: Saturday, April 27, 2002 12:08 PM >To: rsgb_lf_group@blacksheep.org >Subject: R: LF: Jason reception > > Hi Jim > Your Jason signals were quite strong and, in the pauses of noise, the >waterfall was completely black and only the lines of signal were clearly >visible, unfortunately the noise, probably due to te 2750 th armonic of the >mains, was walking up and down on the band, from time to time crossing the >frequency and filling the waterfall. The time appearing on screenshot is our >summer time, UTC+2 hours. 73 Cesare > >Cesare Tagliabue I 5 TGC >WW-Loc JN53PS >e-mail: cestag@dada.it >url: http://www.dadacasa.com/i5tgc > > > > >