Return-Path: Received: (qmail 6349 invoked from network); 4 Dec 2002 15:19:59 -0000 Received: from netmail01.services.quay.plus.net (212.159.14.219) by mailstore with SMTP; 4 Dec 2002 15:19:59 -0000 Content-Transfer-Encoding: 8bit Received: (qmail 9803 invoked by uid 10001); 4 Dec 2002 15:19:49 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from post.thorcom.com (193.82.116.70) by netmail01.services.quay.plus.net with SMTP; 4 Dec 2002 15:19:49 -0000 X-SQ: A X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from majordom by post.thorcom.com with local (Exim 4.10) id 18JbHp-0004rh-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 04 Dec 2002 15:18:05 +0000 Received: from [147.197.200.9] (helo=hestia.herts.ac.uk) by post.thorcom.com with esmtp (Exim 4.10) id 18JbHo-0004rY-00 for rsgb_lf_group@blacksheep.org; Wed, 04 Dec 2002 15:18:04 +0000 Received: from gemini ([147.197.200.44] helo=gemini.herts.ac.uk) by hestia.herts.ac.uk with esmtp (Exim 3.22 #1) id 18JbHT-0006Mx-00 for rsgb_lf_group@blacksheep.org; Wed, 04 Dec 2002 15:17:43 +0000 Received: from [147.197.232.252] (helo=rsch-15.herts.ac.uk) by gemini.herts.ac.uk with esmtp (Exim 3.33 #1) id 18JbHR-00007J-00 for rsgb_lf_group@blacksheep.org; Wed, 04 Dec 2002 15:17:41 +0000 Message-ID: <5.1.0.14.0.20021204150317.00b14250@gemini.herts.ac.uk> X-Sender: mj9ar@gemini.herts.ac.uk X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Wed, 04 Dec 2002 15:13:49 +0000 To: rsgb_lf_group@blacksheep.org From: "James Moritz" In-reply-to: <001501c29ba2$de4eab20$1c076c0a@arenanet.fi> References: <5.1.0.14.0.20021202175331.027c0670@gemini.herts.ac.uk> MIME-Version: 1.0 X-MailScanner: No Virus detected Subject: Re: LF: W-G SPM-19 trouble Content-Type: text/plain; charset=us-ascii; format=flowed X-Spam-Status: No, hits=-0.4 required=5.0tests=DEAR_SOMEBODY,IN_REP_TO,REFERENCES,SPAM_PHRASE_00_01version=2.42 Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Dear Matti, At 16:38 04/12/2002 +0200, you wrote: >I have SPM-19 too but without any manuals. Could you plase check what kind >of input impedance is in "unbal 75" but selected without termination >(infinite). The manual says " > 10kohm//60pF" in the infinite impedance position. The additional attenuation caused by connecting this input across a 75 ohm system is specified as less than 0.05dB at frequencies up to 1MHz. Cheers, Jim Moritz 73 de M0BMU