Return-Path: Received: from rly-mf09.mx.aol.com (rly-mf09.mail.aol.com [172.20.29.179]) by air-mf10.mail.aol.com (v121.4) with ESMTP id MAILINMF101-97f47e29c72115; Thu, 20 Mar 2008 13:19:04 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-mf09.mx.aol.com (v121.4) with ESMTP id MAILRELAYINMF095-97f47e29c72115; Thu, 20 Mar 2008 13:18:45 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1JcOOY-0005Li-BL for rs_out_1@blacksheep.org; Thu, 20 Mar 2008 17:17:38 +0000 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1JcOOX-0005LZ-HB for rsgb_lf_group@blacksheep.org; Thu, 20 Mar 2008 17:17:37 +0000 Received: from smtp5.freeserve.com ([193.252.22.152]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1JcOOR-0000hE-Mr for rsgb_lf_group@blacksheep.org; Thu, 20 Mar 2008 17:17:36 +0000 Received: from me-wanadoo.net (localhost [127.0.0.1]) by mwinf3424.me.freeserve.com (SMTP Server) with ESMTP id F2A7E1C0008C for ; Thu, 20 Mar 2008 18:17:20 +0100 (CET) Received: from AGB (unknown [91.109.7.51]) by mwinf3424.me.freeserve.com (SMTP Server) with SMTP id B5E731C0008A for ; Thu, 20 Mar 2008 18:17:20 +0100 (CET) X-ME-UUID: 20080320171720745.B5E731C0008A@mwinf3424.me.freeserve.com Message-ID: <002401c88aae$41827370$0d00000a@AGB> From: "Graham" To: References: <000f01c88a93$d7067790$0d00000a@AGB> <47E277AC.1030406@telia.com> Date: Thu, 20 Mar 2008 17:17:10 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: JT65-a and WSPR Test Friday 21 1800 . 2400 HRs Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response Content-Transfer-Encoding: 7bit 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 X-AOL-IP: 193.82.116.20 X-AOL-SCOLL-AUTHENTICATION: listenair ; SPF_helo : n X-AOL-SCOLL-AUTHENTICATION: listenair ; SPF_822_from : n Yes , I was thinking in terms of peak watts out to Ae 50% 3 dB , but your right on the voltage level, the alc will hold things back over a wide range , but using that, the peak signal to the ae weill remain the same and the level per tone will alter. The envalope will also be distorted during the settling time. With the two systems running, I will see a two tone test pattern on the scope and a heat haze over the class A linea amp :) G .. ----- Original Message ----- From: "Johan H. Bodin" To: Sent: Thursday, March 20, 2008 2:41 PM Subject: Re: LF: JT65-a and WSPR Test Friday 21 1800 . 2400 HRs > Graham wrote: >> If the drive levels are the same, looks may run WSPR at 503.000 Ae >> fequency , and the JT65-a slightly above, in parallel, setting the drive >> to give -3 db per tone, before onset of alc action. > > Graham, > > please set the drive to give -6dB per tone (relative to max output). Since > the signals are not exactly harmonically related, their voltages will add > "in phase" every now and then and you will get twice the amplitude = 4 > times the power = +3dB overdrive. > > 73 > > > > > > -- > No virus found in this incoming message. > Checked by AVG. Version: 7.5.519 / Virus Database: 269.21.7/1335 - Release > Date: 3/19/2008 09:54 > >