Return-Path: Received: from rly-df07.mx.aol.com (rly-df07.mail.aol.com [172.19.156.20]) by air-df02.mail.aol.com (v126.13) with ESMTP id MAILINDF022-5614b1edf271bf; Tue, 08 Dec 2009 18:20:19 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-df07.mx.aol.com (v125.7) with ESMTP id MAILRELAYINDF072-5614b1edf271bf; Tue, 08 Dec 2009 18:20:09 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1NI9KX-0007PM-D1 for rs_out_1@blacksheep.org; Tue, 08 Dec 2009 23:18:53 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1NI9KW-0007PD-Mq for rsgb_lf_group@blacksheep.org; Tue, 08 Dec 2009 23:18:52 +0000 Received: from rekin26.go2.pl ([193.17.41.76]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1NI9KV-0007Te-Qq for rsgb_lf_group@blacksheep.org; Tue, 08 Dec 2009 23:18:52 +0000 Received: from rekin26.go2.pl (rekin26.go2.pl [127.0.0.1]) by rekin26.go2.pl (Postfix) with ESMTP id 8996B35D7CF for ; Wed, 9 Dec 2009 00:18:46 +0100 (CET) Received: from unknown (unknown [10.0.0.142]) by rekin26.go2.pl (Postfix) with SMTP for ; Wed, 9 Dec 2009 00:18:46 +0100 (CET) Received: from 58-178-124-188.rev.pro-internet.pl [188.124.178.58] by poczta.o2.pl with ESMTP id ndpAAG; Wed, 09 Dec 2009 00:18:46 +0100 Message-ID: <006d01ca785c$c99a08c0$3ab27cbc@ap6fnsa53r3k6h> From: "Marcin" To: References: <1260202597.4b1d2a65f3b5c@imp.netikka.net> Date: Wed, 9 Dec 2009 00:18:42 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-O2-Trust: 2, 68 X-Karma: unknown: X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: LF: Re: Broadcast audio splatter on 136kHz Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none 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-IP: 193.82.116.20 Dear Paul-Henrik, LF I forwarded my friends engineers from Solec Kujawski about your problem. Check the transmitter. A few photos from the transmitter: http://www.sp2pzh.pg.gda.pl/solec.html Vy 73! Marcin SQ2BXI LF Does anybody else on the reflector suffer from BC-splatter on 136kHz? It has been a regular occurance here lately after dark. After some identification work I have a match on the running programmes on 171 and 225kHz, 225kHz being the stronger. I blamed my RX chain at first and started to eliminate IMD possibilities but even now using a passive antenna and a very sharp bandpass filter (much like an IF-filter for a valve BC-set) I still have the BC splatter. So far I have not been able to determine the carrier frequency of this "phantom station" but it must be close to the carrier of Lakihegy. Using AM detection with a narrow filter it seems centered around 135.4kHz. Sounds like two BC-stations on top of eachother and the USB reaches up in the amateur band making "ghost whispers". Luxembourg effect, transmitter IMD or just me missing the point? The bandpass filter is very effective and there are only weak traces of signals above 150kHz. BR Paul-Henrik, OH1LSQ