Return-Path: Received: (qmail 28937 invoked from network); 13 Jul 2003 15:07:49 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 13 Jul 2003 15:07:49 -0000 Received: (qmail 18048 invoked from network); 13 Jul 2003 15:07:39 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 13 Jul 2003 15:07:39 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.14) id 19biRh-0004xI-Sq for rsgb_lf_group-outgoing@blacksheep.org; Sun, 13 Jul 2003 16:07:25 +0100 Received: from [194.25.134.83] (helo=mailout07.sul.t-online.com) by post.thorcom.com with esmtp (Exim 4.14) id 19biRe-0004x9-1A for rsgb_lf_group@blacksheep.org; Sun, 13 Jul 2003 16:07:22 +0100 Received: from fwd11.aul.t-online.de by mailout07.sul.t-online.com with smtp id 19biRd-000706-03; Sun, 13 Jul 2003 17:07:21 +0200 Received: from 217.4.81.132 (EquXIsZBQeJTQsNwM4vRrrIyrB8uHLQaEA4i6CuDWYFVLdWNbHXWrU@[217.4.81.132]) by fwd11.sul.t-online.com with smtp id 19biRV-09Lw920; Sun, 13 Jul 2003 17:07:13 +0200 MIME-Version: 1.0 From: "=?iso-8859-1?Q?\\=22Heinz_Bord=E9\\=22?=" To: rsgb_lf_group@blacksheep.org X-Mailer: T-Online eMail 4.111 Date: 13 Jul 2003 15:07 GMT Message-ID: <19biRV-09Lw920@fwd11.sul.t-online.com> X-Seen: false X-ID: EquXIsZBQeJTQsNwM4vRrrIyrB8uHLQaEA4i6CuDWYFVLdWNbHXWrU@t-dialin.net Subject: Re: LF: ICOM 746 cure Content-Type: Text/Plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=-0.5 required=5.0tests=USER_AGENT_TONLINEversion=2.55 X-Spam-Checker-Version: SpamAssassin 2.55 (1.174.2.19-2003-05-19-exp) X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false I tryed the proposal of Mal. It works. The carrier could be moved to abt. 140 kHz. See INSTRUCTION MANUAL IC 746, chapter 11-4 (ADJUSTMENTS-ADJUSTING the LCD), bringing down LCD BACKLIGHT to 10% By the way: the 746 is not that bad at 137 kHz: I could copy a G4 stn calling cq without preamp. Ant is a T - one, 8 m vertical and 20 m tpo load. 73 to all, Heinz, DM2BHG "hamilton mal" schrieb: > Heinz/DM2BHG recently enquired about a cure for the inband carrier around 136 khz on his ICOM 746 > > To eliminate this carrier adjust the DISPLAY CONTRAST CTL to around 10% and BACKLIGHT CTL the same 10%. > This will move the offending carrier up HF to about 143 khz. This operation takes a couple of minutes > The IC 746 is a good sensitive LF RX on the 137 khz band with the appropriate CW FILTER installed. > 73 and gl > de Mal/G3KEV > > >