Return-Path: Received: (qmail 12677 invoked from network); 27 Jul 2001 12:24:26 -0000 Received: from unknown (HELO warrior-inbound.services.quay.plus.net) (212.159.14.227) by excalibur.plus.net with SMTP; 27 Jul 2001 12:24:26 -0000 Received: (qmail 17741 invoked from network); 27 Jul 2001 12:24:07 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior with SMTP; 27 Jul 2001 12:24:07 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #2) id 15Q6KR-0004Ci-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 27 Jul 2001 13:02:51 +0100 Received: from irwell.zetnet.co.uk ([194.247.47.48] helo=zetnet.co.uk ident=root) by post.thorcom.com with esmtp (Exim 3.16 #2) id 15Q6KN-0004Cc-00 for rsgb_lf_group@blacksheep.org; Fri, 27 Jul 2001 13:02:47 +0100 Received: from abc (man-s143.dialup.zetnet.co.uk [194.247.45.14]) by zetnet.co.uk (8.11.3/8.11.3/Debian 8.11.2-1) with SMTP id f6RC23I08546 for ; Fri, 27 Jul 2001 13:02:03 +0100 Message-ID: <000701c11693$d30665e0$0e2df7c2@zetnet.co.uk> From: "John Rabson" To: rsgb_lf_group@blacksheep.org Subject: LF: RS232 over optical fibre Date: Fri, 27 Jul 2001 13:00:28 +0100 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 5.00.2919.6600 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: I use a Psion 3c organiser to control a Lowe HF250 RX via a 1200 baud serial link (no handshaking) for cave radio experiments. Unfortunately, the Psion produces strong RFI on some frequencies. This seems to radiate from the cable. I would like to try an optical cable isntead of a copper one. Can anyone advise on choice of cable and interfaces please? 73 de John Rabson G3PAI