X-GM-THRID: 1236371748710129320 X-Gmail-Labels: rsgb lf Delivered-To: daveyxm@gmail.com Received: by 10.78.172.11 with SMTP id u11cs263618hue; Tue, 15 May 2007 03:52:16 -0700 (PDT) Received: by 10.67.24.18 with SMTP id b18mr5894909ugj.1179226336135; Tue, 15 May 2007 03:52:16 -0700 (PDT) Return-Path: Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mx.google.com with ESMTP id 34si12758477uga.2007.05.15.03.52.13; Tue, 15 May 2007 03:52:16 -0700 (PDT) Received-SPF: neutral (google.com: 193.82.116.20 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1HnubE-0002Iu-6s for rs_out_1@blacksheep.org; Tue, 15 May 2007 11:49:48 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1HnubD-0002Il-Rd for rsgb_lf_group@blacksheep.org; Tue, 15 May 2007 11:49:47 +0100 Received: from mx4.mun.ca ([134.153.232.56] helo=ella.ucs.mun.ca) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1HnubC-0007WO-Uz for rsgb_lf_group@blacksheep.org; Tue, 15 May 2007 11:49:47 +0100 Received: from plato.ucs.mun.ca (root@plato.ucs.mun.ca [134.153.232.151]) by ella.ucs.mun.ca (8.13.1/8.13.1) with ESMTP id l4FAnd9K025888 for ; Tue, 15 May 2007 08:19:39 -0230 Received: from plato.ucs.mun.ca (jcraig@localhost [127.0.0.1]) by plato.ucs.mun.ca (8.12.3p2/8.12.3) with ESMTP id l4FAnc5W010999 for ; Tue, 15 May 2007 08:19:38 -0230 (NDT) Received: (from jcraig@localhost) by plato.ucs.mun.ca (8.12.3p2/8.12.1/Submit) id l4FAncIh031426; Tue, 15 May 2007 08:19:38 -0230 (NDT) Date: Tue, 15 May 2007 08:19:37 -0230 (NDT) From: Joe Craig X-X-Sender: jcraig@plato.ucs.mun.ca To: rsgb_lf_group@blacksheep.org In-Reply-To: <4648DB25.6010907@usa.net> Message-ID: References: <1751305265.20070512104213@gmx.de> <001f01c79479$76cabbe0$0300a8c0@lark> <4648DB25.6010907@usa.net> MIME-Version: 1.0 X-Spam-Flag: NO X-Spam-Report: -10 USER_IN_WHITELIST From: address is in the user's white-list * -1.4 ALL_TRUSTED Passed through trusted hosts only via SMTP X-Scanned-By: MIMEDefang 2.57 on 134.153.232.56 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: 5 WPM Again... Content-Type: TEXT/PLAIN; charset=US-ASCII X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: 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 Status: O X-Status: X-Keywords: X-UID: 1863 Thank-you Alberto and Alan for your helpful suggestions on FS measurement. It appears as I'm getting consistent results within 0.5 dB on a relative scale at least. 73 Joe VO1NA On Mon, 14 May 2007, Alberto di Bene wrote: > Joe Craig wrote: > > > > I suspect that ARGO may reference its readings against the background > > noise and not be absolute. Running 1000 watts (4.5 amps) to 100m of > > wire up 10 m showed a 3 dB advantage over the previous system: 100 watts > > to a sloping 100m wire with the far end up 25 metres. > > > > The dBs reported by Argo are relative to the full scale of the ADC converter of the sound card, 0 dB being its > saturation level, and so on. Of course that reading is influenced by the position of the level slider in the mixer panel > of Windows, and by the setting of the volume knob of the radio... > > 73 Alberto I2PHD > > >