Return-Path: Received: (qmail 2441 invoked from network); 19 Dec 2002 13:16:29 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 19 Dec 2002 13:16:29 -0000 Received: (qmail 14059 invoked from network); 19 Dec 2002 13:16:26 -0000 Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 19 Dec 2002 13:16:26 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.10) id 18P0WU-00073S-00 for rsgb_lf_group-outgoing@blacksheep.org; Thu, 19 Dec 2002 13:15:34 +0000 Received: from [193.229.0.57] (helo=fep06-app.kolumbus.fi) by post.thorcom.com with esmtp (Exim 4.10) id 18P0WT-00073J-00 for rsgb_lf_group@blacksheep.org; Thu, 19 Dec 2002 13:15:34 +0000 Received: from merocomp ([62.248.135.10]) by fep06-app.kolumbus.fi with SMTP id <20021219131532.RBCW20933.fep06-app.kolumbus.fi@merocomp> for ; Thu, 19 Dec 2002 15:15:32 +0200 Message-ID: <000801c2a760$cb66b4c0$1c076c0a@arenanet.fi> From: "Matti Niemela" To: rsgb_lf_group@blacksheep.org References: <5.1.0.14.0.20021202175331.027c0670@gemini.herts.ac.uk> <5.1.0.14.0.20021204150317.00b14250@gemini.herts.ac.uk> Date: Thu, 19 Dec 2002 15:16:08 +0200 MIME-Version: 1.0 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 Subject: Re: LF: W-G SPM-19 trouble Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=-0.2 required=5.0tests=DEAR_SOMEBODY,QUOTED_EMAIL_TEXT,REFERENCES, SPAM_PHRASE_00_01,USER_AGENT_OEversion=2.42 Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Thank you very much Jim for SPM-19 input impedance info. Sometimes I get error message 1--202, which disappears when I change attenuatorīs value. Could you please check whether the manual can tell something about that error code. Merry Xmas and Happy Year 2003 Matti/OH2ZT ----- Original Message ----- From: "James Moritz" To: Sent: Wednesday, December 04, 2002 5:13 PM Subject: Re: LF: W-G SPM-19 trouble > 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 > >