Return-Path: Received: (qmail 89245 invoked from network); 5 Jan 2005 22:56:37 -0000 Received: from unknown (HELO ptb-spamcore02.plus.net) (192.168.71.3) by ptb-mailstore02.plus.net with SMTP; 5 Jan 2005 22:56:37 -0000 Received: from mailnull by ptb-spamcore02.plus.net with spamcore-l-b (Exim 4.32; FreeBSD) id 1CmK3n-000Ddt-QU for dave@picks.force9.co.uk; Wed, 05 Jan 2005 22:55:25 +0000 Received: from [192.168.67.2] (helo=ptb-mxcore02.plus.net) by ptb-spamcore02.plus.net with esmtp (Exim 4.32; FreeBSD) id 1CmK3n-000Ddq-KA for dave@picks.force9.co.uk; Wed, 05 Jan 2005 22:55:23 +0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1CmK4x-0001p6-Dj for dave@picks.force9.co.uk; Wed, 05 Jan 2005 22:56:35 +0000 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1CmK4T-00076B-6Z for rs_out_1@blacksheep.org; Wed, 05 Jan 2005 22:56:05 +0000 Received: from [193.82.116.30] (helo=relay.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1CmK4S-000761-Qf for rsgb_lf_group@blacksheep.org; Wed, 05 Jan 2005 22:56:04 +0000 Received: from one.surfree.co.uk ([195.80.0.234]) by relay.thorcom.net with esmtp (Exim 4.41) id 1CmK4N-0002kT-VI for rsgb_lf_group@blacksheep.org; Wed, 05 Jan 2005 22:56:04 +0000 Received: from [212.248.140.9] ([212.248.140.9]) by one.surfree.co.uk (8.9.3/8.9.3) with ESMTP id XAA22195 for ; Wed, 5 Jan 2005 23:57:07 GMT Received: from 127.0.0.1 (AVG SMTP 7.0.298 [265.6.7]); Wed, 05 Jan 2005 22:55:42 +0000 Message-ID: <001f01c4f379$aeeee260$045bfea9@d4f8d8> From: "Andy Talbot" To: rsgb_lf_group@blacksheep.org References: <20050105194714.63708.qmail@web25704.mail.ukl.yahoo.com> <41DC491D.9020008@freenet.de> <41DC5192.9070800@usa.net> Date: Wed, 5 Jan 2005 22:55:40 -0000 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Mime-Version: 1.0 X-SPF-Result: relay.thorcom.net: 195.80.0.234 is neither permitted nor denied by domain of southsurf.com X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=failed,none Subject: Re: LF: G3YKB PSK31 copy in Ipswich Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=iso-8859-1; format=flowed X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-Spam-Filtered: by PlusNet SpamCORE (v3.00) Think I was referring to the 74HC3257 devices - bus switches Seem to remember I measured in the region of +40dBm TOI at HF using one in a DBM design with a pair of ferrite transformers in a DBM arrangement Andy G4JNT ----- Original Message ----- From: "Alberto di Bene" To: Sent: Wednesday, January 05, 2005 8:44 PM Subject: Re: LF: G3YKB PSK31 copy in Ipswich > Wolf DL4YHF wrote: > > > P.S: Andy G4JNT mentioned a mixer using fast analog switches with a > > low on-resistance some months ago, unfortunately I couldn't find the > > message on my harddisk. Anybody remember the chip name ? > > Wolf, > I don't know which chip was mentioned by Andy, but I have used with > great success > in my SDRadio project the Analog Devices ADG704, with a typical Rdson > resistance > of about 2.5 ohm. The chip is available from RS Components. > > 73 Alberto I2PHD > > > > > > > -- > No virus found in this incoming message. > Checked by AVG Anti-Virus. > Version: 7.0.298 / Virus Database: 265.6.7 - Release Date: 2004-12-30 > > -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.298 / Virus Database: 265.6.7 - Release Date: 2004-12-30