Return-Path: Received: from rly-ma04.mail.aol.com (rly-ma04.mail.aol.com [172.20.116.48]) by air-ma06.mail.aol.com (v119.11) with ESMTP id MAILINMA061-8a047025ce42ba; Tue, 02 Oct 2007 11:00:02 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-ma04.mail.aol.com (v119.11) with ESMTP id MAILRELAYINMA042-8a047025ce42ba; Tue, 02 Oct 2007 10:59:50 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1IcjD1-00040G-6v for rs_out_1@blacksheep.org; Tue, 02 Oct 2007 15:58:51 +0100 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1IcjD0-000407-NP for rsgb_lf_group@blacksheep.org; Tue, 02 Oct 2007 15:58:50 +0100 Received: from wa-out-1112.google.com ([209.85.146.182]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1IcjCy-0000Eo-Dl for rsgb_lf_group@blacksheep.org; Tue, 02 Oct 2007 15:58:50 +0100 Received: by wa-out-1112.google.com with SMTP id m16so5418745waf for ; Tue, 02 Oct 2007 07:58:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; bh=yzsGluy/G8FI9kSafuT+ccOHD+BrGtQ39b8/HcQthO8=; b=LnEj8w86WqvmY1Rt4KIzspP32sxPvAdMARgJ0ax62L0DcANzyLF1LwcTCseEip7D5upNLy3e1IU5s/aGTQE6mby/a7+Ei5qHZAaMXRLuLLAwyNjTllcDbpF/XwPaQBAXs7RO7cNCsMyMpxhLgUw+wGJM0TlZUMzSIH3Hh7RaYQ8= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=beta; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=Njawte8JPmihUo8bXPkJSYP5pmxmyEAgihCba3AgjNQX6rqNbDCjDvwm6BMm8VwyDJuy8ViUJn4j8FXYFyEij7dhCSPzH+S2DZE86UjXDgVg54nTZtKA5CrDINpCRFtVjswjQweS8J08p8BRMP1N+pULQNjURVcPCnrUcn8wRp0= Received: by 10.115.59.4 with SMTP id m4mr2165980wak.1191337122223; Tue, 02 Oct 2007 07:58:42 -0700 (PDT) Received: by 10.35.107.12 with HTTP; Tue, 2 Oct 2007 07:58:42 -0700 (PDT) Message-ID: Date: Tue, 2 Oct 2007 15:58:42 +0100 From: "Andy Talbot" To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 Content-Disposition: inline DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: LF: Local AM transmitter on PC output 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 X-AOL-SCOLL-AUTHENTICATION: listenair ; SPF_helo : X-AOL-SCOLL-AUTHENTICATION: listenair ; SPF_822_from : X-Mailer: Unknown (No Version) While testing an IQ upconverter chip, I discovered I've got several tens of millivolts of Virgin AM on 1215kHz coming out of my PC's audio output. There is enough signal to see it on a frequency counter and view the AM on a scope. There is presumably a transmitter nearby, and/or some curious resonance in the house wiring that accentuates pick up of this signal. Its not the LF antenna picking up the signal, so I'm wondering if the ring-main is forming a resonant loop :-) Does anyone know where the transmitter site for this station is located? Andy G4JNT www.scrbg.org/g4jnt