Return-Path: Received: (qmail 26348 invoked from network); 26 Sep 2001 22:32:32 -0000 Received: from unknown (HELO murphys-inbound.services.quay.plus.net) (212.159.14.225) by excalibur-qfe1-smtp-plusnet.harl.plus.net with SMTP; 26 Sep 2001 22:32:32 -0000 Received: (qmail 22120 invoked from network); 26 Sep 2001 22:30:21 -0000 X-MSMail-Priority: Normal Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 26 Sep 2001 22:30:21 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from majordom by post.thorcom.com with local (Exim 3.16 #2) id 15mN7B-0007CO-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 26 Sep 2001 23:25:13 +0100 Received: from mail-4.tiscalinet.it ([195.130.225.150] helo=mail.tiscalinet.it) by post.thorcom.com with esmtp (Exim 3.16 #2) id 15mN7A-0007CJ-00 for rsgb_lf_group@blacksheep.org; Wed, 26 Sep 2001 23:25:12 +0100 Received: from orion.pii.net (62.11.53.12) by mail.tiscalinet.it (5.5.044) id 3BAC36B50014E04E for rsgb_lf_group@blacksheep.org; Thu, 27 Sep 2001 00:24:21 +0200 Received: (from clapo@localhost) by orion.pii.net (8.9.3/8.9.3) id AAA00889 for rsgb_lf_group@blacksheep.org; Thu, 27 Sep 2001 00:17:51 +0200 Message-ID: X-Mailer: XFMail 1.3 [p0] on Linux X-Priority: 3 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-reply-to: <3BB20CB3.46FA1431@diolog.de> Date: Thu, 27 Sep 2001 00:17:51 +0200 (CEST) From: "Claudio" To: rsgb_lf_group@blacksheep.org Subject: Re: LF: ic706 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: On 26-Sep-01 Fabian Kurz wrote: >> When I put the big antenna up then it was more than adequate with the pre >> amp on. > > My FT-890 is more sensitive on 136 kHz when i switch the preamp **off** > .. anyone else noticed that > with a general-coverage rx? the preamp seems to work like an attentuator > down there (unfortunately the att doesn't work like a preamp, hi hi) Yes, may be a new feature by Yaesu. Also my new FT-100D is more sensitive on 136 kHz with **IPO** on ( I think that mean preamp off but manual does not specify what they mean with IPO on, on the HF bands IPO on = premp off). May be that a coupling transformer at he output of the preamp does the bad job. I writed an e-mail to the italian YAESU rapreentative, they replied that YAESU need a lot of compliants before to make some improvement. Actally YAESU responce was that 136 kHz is an unused band. Please write to YAESU. I have a 20 dB preamp with band pass filter before the rig. See my WEB site for schematics. 73 de Claudio ---------------------------------------------------------------------- Claudio Pozzi http://www.qsl.net/ik2pii happy Linux user E-Mail: Claudio Date: 27-Sep-01 Time: 00:03:56 This message was sent by XFMail ----------------------------------------------------------------------