Return-Path: Received: (qmail 6338 invoked from network); 9 Jan 2002 22:56:18 -0000 Received: from unknown (HELO warrior.services.quay.plus.net) (212.159.14.227) by excalibur.plus.net with SMTP; 9 Jan 2002 22:56:18 -0000 Received: (qmail 22002 invoked from network); 9 Jan 2002 22:56:16 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior.services.quay.plus.net with SMTP; 9 Jan 2002 22:56:16 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 16ORbP-0003p2-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 09 Jan 2002 22:53:47 +0000 Received: from anchor-post-31.mail.demon.net ([194.217.242.89]) by post.thorcom.com with esmtp (Exim 3.33 #2) id 16ORbO-0003ox-00 for rsgb_lf_group@blacksheep.org; Wed, 09 Jan 2002 22:53:46 +0000 Received: from rgcomms.demon.co.uk ([193.237.77.63] helo=grahamspent) by anchor-post-31.mail.demon.net with smtp (Exim 2.12 #1) id 16ORac-000KCi-0V for rsgb_lf_group@blacksheep.org; Wed, 9 Jan 2002 22:52:59 +0000 From: "Graham Phillips" To: rsgb_lf_group@blacksheep.org Subject: LF: RE: Racal RA1792 Date: Wed, 9 Jan 2002 22:50:55 -0000 Message-ID: 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 IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 In-reply-to: <200201092014.g09KEqd22366@smtp.wanadoo.nl> Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Hi Ko, Laurie has explained the back-lite on the RA1792. The BITE stands for Built-In-Test-Equipmet and refers to a self-test software routine available on some versions of RA1792. I had about 60 of these receivers a few years ago and found that the internal noise varied .. many of them had the pre-set I.F. gain incorrectly set ... a quick adjustment cured most of them. Some models are fitted with Collins mechanical filters, and others with Crystal ones. ( all at 455 Khz apart from a 16 kHz B.W. roofing filter ) Hope that is of use, 73 de Graham B. Phillips. G3XTZ. g3xtz@rgcomms.demon.co.uk