Return-Path: Received: (qmail 7235 invoked from network); 23 Jan 2001 01:57:27 -0000 Received: from unknown (HELO murphys-inbound.servers.plus.net) (212.159.14.225) by excalibur.plus.net with SMTP; 23 Jan 2001 01:57:27 -0000 Received: (qmail 12014 invoked from network); 23 Jan 2001 01:51:43 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 23 Jan 2001 01:51:43 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from majordom by post.thorcom.com with local (Exim 3.16 #1) id 14KsXb-0005RG-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 23 Jan 2001 01:46:35 +0000 Received: from imo-r10.mx.aol.com ([152.163.225.10]) by post.thorcom.com with esmtp (Exim 3.16 #1) id 14KsXZ-0005R8-00 for rsgb_lf_group@blacksheep.org; Tue, 23 Jan 2001 01:46:34 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from WarmSpgs@aol.com by imo-r10.mx.aol.com (mail_out_v29.5.) id l.8b.1621c71 (16785) for ; Mon, 22 Jan 2001 20:45:40 -0500 (EST) From: WarmSpgs@aol.com Message-ID: <8b.1621c71.279e3c44@aol.com> Date: Mon, 22 Jan 2001 20:45:40 EST Subject: Re: LF: Accuracy of Soundcards, programs, and related stuff To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 8bit X-Mailer: AOL 4.0 for Windows 95 sub 120 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: In a message dated 1/22/01 5:38:49 PM Eastern Standard Time, dibene@usa.net writes: << If you tune an FM radio to a stereo station, there is a pilot signal at 19 kHz that is used to regenerate the carrier used for the left - right separation. At least this is true for Europe, don't know for the US. >> It is the same pilot signal here. However, the frequency accuracy leaves something to be desired. The tolerance in the U.S. is plus-or-minus 2Hz. Most stations do much better than that, but I'm not sure I would trust it as a reference. For most broadcasters, the stereo pilot is one of those "out of sight, out of mind" things. 73, John KD4IDY