Return-Path: Received: (qmail 21078 invoked from network); 5 Jan 2001 17:13:09 -0000 Received: from unknown (HELO warrior-inbound.servers.plus.net) (212.159.14.227) by extortion.plus.net with SMTP; 5 Jan 2001 17:13:09 -0000 Received: (qmail 10289 invoked from network); 5 Jan 2001 17:15:46 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior with SMTP; 5 Jan 2001 17:15:46 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #1) id 14EaNO-0006m8-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 05 Jan 2001 17:10:02 +0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from d06lmsgate-3.uk.ibm.com ([195.212.29.3]) by post.thorcom.com with esmtp (Exim 3.16 #1) id 14EaNJ-0006lg-00 for rsgb_lf_group@blacksheep.org; Fri, 05 Jan 2001 17:09:57 +0000 Received: from d06relay01.portsmouth.uk.ibm.com (d06relay01.portsmouth.uk.ibm.com [9.166.84.147]) by d06lmsgate-3.uk.ibm.com (1.0.0) with ESMTP id RAA166098 for ; Fri, 5 Jan 2001 17:00:47 GMT Received: from usa.net (ss8.bld.socks.ibm.com [9.14.4.73]) by d06relay01.portsmouth.uk.ibm.com (8.8.8m3/NCO v4.95) with ESMTP id RAA90668 for ; Fri, 5 Jan 2001 17:09:14 GMT X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Message-ID: <3A55FF9D.8AB96481@usa.net> Date: Fri, 05 Jan 2001 18:08:45 +0100 From: "Alberto di Bene" Organization: Undisclosed X-Mailer: Mozilla 4.76 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org Subject: LF: RE: LF Spurious signal on south coast References: <65AECDF1F89AD411900400508BFC869F0D74EB@pdw-mail-1.dera.gov.uk> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Talbot Andrew wrote: > [snip] > Next project is a proper LF receiver with accurate and > repeatable signal measuring capability and built in A/D converter to > avoid having to use soundcards or external DSP for narrow band working. > [snip] Andy, do you know these chips : http://www.alesis-semi.com/index.html >From a first look they look quite useful for such a project. And they are inexpensive, too. Just a thought... 73 Alberto I2PHD