Return-Path: Received: (qmail 26216 invoked from network); 1 Feb 2001 20:07:10 -0000 Received: from unknown (HELO murphys-inbound.servers.plus.net) (212.159.14.225) by excalibur.plus.net with SMTP; 1 Feb 2001 20:07:10 -0000 Received: (qmail 18411 invoked from network); 1 Feb 2001 20:01:14 -0000 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 1 Feb 2001 20:01:14 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from majordom by post.thorcom.com with local (Exim 3.16 #1) id 14OPn7-0005IA-00 for rsgb_lf_group-outgoing@blacksheep.org; Thu, 01 Feb 2001 19:53:13 +0000 Received: from finch-post-10.mail.demon.net ([194.217.242.38]) by post.thorcom.com with esmtp (Exim 3.16 #1) id 14OPn6-0005I5-00 for rsgb_lf_group@blacksheep.org; Thu, 01 Feb 2001 19:53:12 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from pickmere.demon.co.uk ([158.152.117.143]) by finch-post-10.mail.demon.net with smtp (Exim 2.12 #1) id 14OPms-000BlK-0A for rsgb_lf_group@blacksheep.org; Thu, 1 Feb 2001 19:52:58 +0000 Message-ID: Date: Thu, 1 Feb 2001 16:34:04 +0000 To: rsgb_lf_group@blacksheep.org From: "M.J.Powell" Subject: Re: LF: S-meter standard References: <003201c0197e$a4955e40$57d725c3@194.95.193.10.fen.baynet.de> <003701c02a05$847f1d20$aa14b28f@w8k3f0> <3A774FE6.CF537646@virgin.net> <005401c08c2b$9b3380a0$1129f7c2@oemcomputer> <3A79588A.BAFE81C4@virgin.net> In-reply-to: <3A79588A.BAFE81C4@virgin.net> MIME-Version: 1.0 X-Mailer: Turnpike Integrated Version 4.02 S Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: In message <3A79588A.BAFE81C4@virgin.net>, Stewart Bryant writes > > >John Rabson wrote: > >> ----- Original Message ----- >> From: M.J.Powell >> To: >> Sent: Wednesday, January 31, 2001 4:33 PM >> Subject: Re: LF: S-meter standard >> >> > In message <3A774FE6.CF537646@virgin.net>, Stewart Bryant >> > writes >> > > Why do the manufacturers still bother with S units. Why don't >> > > receivers just >> > > measure dBuV or dBm at the antenna? >> > >> > Because that would mean equalising the gain exactly over the whole >> > range. Expensive. The WJ1000 does though. >> > >> The RC411 did. >> >> 73 de >> John Rabson G3PAI > >Actually in these modern microprocessor days it does not mean equalising >the >gain, it means adding an S meter correction table to the software, and >running the S meter via the CPU rather than directly from the AGC line. Yes. Well, you can see how out of date I am! Mike -- M.J.Powell