Return-Path: Received: (qmail 28413 invoked from network); 10 Jan 2002 14:32:29 -0000 Received: from unknown (HELO warrior.services.quay.plus.net) (212.159.14.227) by excalibur.plus.net with SMTP; 10 Jan 2002 14:32:29 -0000 Received: (qmail 28342 invoked from network); 10 Jan 2002 14:32:29 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior.services.quay.plus.net with SMTP; 10 Jan 2002 14:32:29 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 16Og8B-000651-00 for rsgb_lf_group-outgoing@blacksheep.org; Thu, 10 Jan 2002 14:24:35 +0000 Received: from [63.148.102.94] (helo=wfmail01.westfields.veridian.com) by post.thorcom.com with esmtp (Exim 3.33 #2) id 16Og8A-00064w-00 for rsgb_lf_group@blacksheep.org; Thu, 10 Jan 2002 14:24:34 +0000 Received: from Sandy (OKW98-SANDY [10.9.0.28]) by wfmail01.westfields.veridian.com with SMTP (Microsoft Exchange Internet Mail Service Version 5.5.2653.13) id CSJH75V7; Thu, 10 Jan 2002 09:20:24 -0500 Message-ID: <004a01c199e2$6287a540$1c00090a@Sandy> From: "Elton Sanders" To: rsgb_lf_group@blacksheep.org Subject: LF: rfid Date: Thu, 10 Jan 2002 09:23:33 -0500 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: John, try www.microchip.com microid section. download the rfid system design design guide. 125khz seems to be the main frequency but I think the 134.8khz systems work the same. Also a quick web search came up with [DOC] Subject: File Format: Microsoft Word 97 for Macintosh - View as HTML ... 64. »-42. ISO 18000-2. 125/134.2 kHz. fc ± 4 ... of the Band 135.7-137.8 kHz by the Amateur Service. - CISPR ... integrated circuit(s) cards - Proximity cards -. ... www.ero.dk/EROWEB/Public%20consult-October01/SE_Draft_ECC_Report01.doc - Good luck Sandy WB5MMB