Return-Path: Received: (qmail 1436 invoked from network); 14 Apr 1999 09:37:49 +0100 Received: from magnet.plus.net.uk (HELO magnet.force9.net) (195.166.128.26) by guiness.force9.net with SMTP; 14 Apr 1999 09:37:49 +0100 Received: (qmail 31845 invoked from network); 14 Apr 1999 08:39:21 -0000 Received: from post.thorcom.com (194.75.130.70) by magnet.plus.net.uk with SMTP; 14 Apr 1999 08:39:21 -0000 Received: from troy.blacksheep.org ([194.75.183.50] ident=root) by post.thorcom.com with esmtp (Exim 2.04 #3) id 10XL7p-0005ch-00; Wed, 14 Apr 1999 09:34:25 +0100 Received: (from root@localhost) by troy.blacksheep.org (8.6.12/8.6.12) id IAA03490 for rsgb_lf_group-outgoing; Wed, 14 Apr 1999 08:33:01 GMT X-Priority: 3 X-MSMail-Priority: Normal Received: from post.thorcom.com (root@post.unica.co.uk [194.75.183.70]) by troy.blacksheep.org (8.6.12/8.6.12) with ESMTP id IAA03486 for ; Wed, 14 Apr 1999 08:32:58 GMT Received: from ns.cro.cz ([193.179.196.2] ident=qmailr) by post.thorcom.com with smtp (Exim 2.04 #3) id 10XL6C-0005bH-00 for rsgb_lf_group@blacksheep.org; Wed, 14 Apr 1999 09:32:44 +0100 Received: (qmail 5865 invoked from network); 14 Apr 1999 08:32:34 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from fw.cro.cz (HELO ns-int.cro.cz) (193.179.197.2) by ns.cro.cz with SMTP; 14 Apr 1999 08:32:34 -0000 Received: from radiohk.hk.cro.cz (ns.hk.cro.cz [172.27.1.2]) by ns-int.cro.cz (8.8.5/8.8.5) with ESMTP id KAA08003 for ; Wed, 14 Apr 1999 10:32:33 +0200 (MET DST) Received: from pc033hk.hk.cro.cz ([172.27.1.33]) by radiohk.hk.cro.cz (8.9.1/8.9.1) with SMTP id KAA23599 for ; Wed, 14 Apr 1999 10:32:18 +0200 (MET DST) Received: by pc033hk.hk.cro.cz with Microsoft Mail id <01BE8662.1101CC00@pc033hk.hk.cro.cz>; Wed, 14 Apr 1999 10:32:16 +-200 Message-ID: <01BE8662.1101CC00@pc033hk.hk.cro.cz> From: "Petr Maly" To: rsgb_lf_group@blacksheep.org Subject: LF: Receiving Date: Wed, 14 Apr 1999 10:32:14 +-200 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org These experiencies give me more hope. Several times I tried to listen to 136 kHz on my IC-751A and long wire (80 meters), heard nothing but noise of various kind. One suggestion. Few years ago I came across a schematic diagram of receiver for NAVTEX (I was R/O and /mm that time). Directly on input of rx there was a crystal filter on 518 kHz, where NAVTEX transmits. Would it not be excellent solution to make crystal SSB-wide filter centered on 136.7 kHz and put it between ant and rx? I know there is only one problem - where to get crystals around 136 and 137 kHz..., hi Petr, OK1FIG