Return-Path: Received: from mtain-mp08.r1000.mx.aol.com (mtain-mp08.r1000.mx.aol.com [172.29.193.76]) by air-me08.mail.aol.com (v129.4) with ESMTP id MAILINME081-8bbc4d1cde9021f; Thu, 30 Dec 2010 14:33:36 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mp08.r1000.mx.aol.com (Internet Inbound) with ESMTP id 1E85D380000F9; Thu, 30 Dec 2010 14:33:34 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PYOEz-0002jo-9w for rs_out_1@blacksheep.org; Thu, 30 Dec 2010 19:32:49 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PYOEy-0002je-Pp for rsgb_lf_group@blacksheep.org; Thu, 30 Dec 2010 19:32:48 +0000 Received: from mail-iw0-f171.google.com ([209.85.214.171]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1PYOEw-0000VA-Fe for rsgb_lf_group@blacksheep.org; Thu, 30 Dec 2010 19:32:48 +0000 Received: by iwn2 with SMTP id 2so11229767iwn.16 for ; Thu, 30 Dec 2010 11:32:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:content-type; bh=RxTF78QvPlpWtbjLRmYGmIz+hiGPSQf320Pq0eZvMtE=; b=JXprMgHCHfHHFYE/gPhz4tUnQ+ICSWE/e47O7pgsFSjlPxPqbIn5bppgOzs3puDtAO E8/uUSDuO/fPjSbR1p/tR1z8t/JKlhFtwVhxivb8lYUmKG6qsjL7oa7F/Ux7RGEhK6xi VcgN9rpX2jP5DPFumznCghjLIaii8DyDcO34E= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=HiEUxWVZCLGnQxZUXYqU46zO2Hb9CxFpOwbgNr+KupEL5GZbyR6AaeC3M7v3od+Fr1 fPZgqWlcFn5aqUSrID5r9IusuYS1WdddvMFyhab1n41wksr5PmsDZqEO+pwk9LaLvKDA PtnAQNveGMgUk5gPMmTCFo+HpxEEHYUGExpbg= MIME-Version: 1.0 Received: by 10.231.35.75 with SMTP id o11mr246873ibd.12.1293737565273; Thu, 30 Dec 2010 11:32:45 -0800 (PST) Received: by 10.231.200.211 with HTTP; Thu, 30 Dec 2010 11:32:45 -0800 (PST) In-Reply-To: <005601cba855$db72a000$7c0ff004@ctrask> References: <4D1B7B17.2040007@iup.uni-heidelberg.de> <580115.53843.qm@web28108.mail.ukl.yahoo.com> <005601cba855$db72a000$7c0ff004@ctrask> Date: Thu, 30 Dec 2010 19:32:45 +0000 Message-ID: From: Andy Talbot To: rsgb_lf_group@blacksheep.org DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: Re: LF: DK7FC's VLF Active Antenna Content-Type: multipart/alternative; boundary=000325579db202c10f0498a5c0b1 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.6 required=5.0 tests=HTML_20_30, HTML_FONTCOLOR_UNSAFE,HTML_MESSAGE 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-aol-global-disposition: G X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-d289.2 ; domain : gmail.com DKIM : pass x-aol-sid: 3039ac1dc14c4d1cde8e6ee7 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none X-Mailer: Unknown (No Version) --000325579db202c10f0498a5c0b1 Content-Type: text/plain; charset=ISO-8859-1 sri - SMT has been around for more than a quarter of a century . Mustn't discriminate, it must qualify as ancient too :-) I worked on, I think, the first satellite to use SMT construction in space hardware - ERS1. The RF subsystem manufactured by Alcatel / Thomson - and we certainly had a lot of discussion about reliability and PCB manufacturing techniques those days. Andy www.g4jnt.com On 30 December 2010 19:14, Chris Trask wrote: > > Investigate RF Padboard :...... > http://cgi.ebay.ie/RF-Matrix-PadBoard-149x114x1-6-Prototype-Circuit-Board-/1 70573074927 > Nice price. > > > > > Designed specifically for mixing SMT and ancient in the same design > > > > Whoa! What's with this "ancient" stuff? > > Chris > > > --000325579db202c10f0498a5c0b1 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
sri -
SMT has been around for more than a quarter of a century .=A0=A0
Mustn't discriminate,=A0it=A0must=A0qualify as ancient too :-)
=A0
I worked on,=A0 I think, the first satellite to use SMT construction= =A0in space hardware - ERS1.=A0
The RF subsystem manufactured by Alcatel / Thomson=A0- and we certain= ly had a lot of discussion about reliability and PCB manufacturing techniq= ues those days.
=A0
Andy
=A0
On 30 December 2010 19:14, Chris Trask <christrask@earthlink.net> wrote:
>
> Investigate RF Padboard :......
>
http://cgi.ebay.ie/RF-Matrix-PadBoard-149x114x= 1-6-Prototype-Circuit-Board-/1
70573074927
>

=A0 =A0Nice price.

>
> Designed specifically for mixing SMT an= d ancient in the same design
>

=A0 =A0Whoa! =A0What'= ;s with this "ancient" stuff?

Chr= is



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