Return-Path: Received: from rly-mg05.mx.aol.com (rly-mg05.mail.aol.com [172.20.83.111]) by air-mg09.mail.aol.com (v121.4) with ESMTP id MAILINMG092-a1547e2788036d; Thu, 20 Mar 2008 10:45:48 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-mg05.mx.aol.com (v121.4) with ESMTP id MAILRELAYINMG057-a1547e2788036d; Thu, 20 Mar 2008 10:45:36 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1JcLy7-0004jH-U3 for rs_out_1@blacksheep.org; Thu, 20 Mar 2008 14:42:11 +0000 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1JcLy6-0004j8-8a for rsgb_lf_group@blacksheep.org; Thu, 20 Mar 2008 14:42:10 +0000 Received: from pne-smtpout2-sn1.fre.skanova.net ([81.228.11.159]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1JcLxy-0007M9-U0 for rsgb_lf_group@blacksheep.org; Thu, 20 Mar 2008 14:42:08 +0000 Received: from [127.0.0.1] (81.232.131.201) by pne-smtpout2-sn1.fre.skanova.net (7.3.129) (authenticated as u33233109) id 47A77FC400FD5FB3 for rsgb_lf_group@blacksheep.org; Thu, 20 Mar 2008 15:41:50 +0100 Message-ID: <47E277AC.1030406@telia.com> Date: Thu, 20 Mar 2008 15:41:48 +0100 From: "Johan H. Bodin" User-Agent: Thunderbird 2.0.0.12 (Windows/20080213) MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <000f01c88a93$d7067790$0d00000a@AGB> In-Reply-To: <000f01c88a93$d7067790$0d00000a@AGB> 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; charset=ISO-8859-1; format=flowed 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 X-Mailer: Unknown (No Version) 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