Return-Path: Received: from rly-mg07.mx.aol.com (rly-mg07.mail.aol.com [172.20.83.113]) by air-mg04.mail.aol.com (v121_r4.4) with ESMTP id MAILINMG042-a204985db6a1c5; Sun, 01 Feb 2009 12:27:21 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-mg07.mx.aol.com (v121_r4.4) with ESMTP id MAILRELAYINMG072-a204985db6a1c5; Sun, 01 Feb 2009 12:27:09 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1LTg5O-0006Ud-1I for rs_out_1@blacksheep.org; Sun, 01 Feb 2009 17:26:22 +0000 Received: from [193.82.59.130] (helo=relay2.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1LTg5N-0006UU-Dy for rsgb_lf_group@blacksheep.org; Sun, 01 Feb 2009 17:26:21 +0000 Received: from mail-qy0-f21.google.com ([209.85.221.21]) by relay2.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1LTg5M-0005hi-E0 for rsgb_lf_group@blacksheep.org; Sun, 01 Feb 2009 17:26:21 +0000 Received: by qyk14 with SMTP id 14so2015967qyk.4 for ; Sun, 01 Feb 2009 09:26:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:mime-version:received:date:message-id:subject :from:to:content-type:content-transfer-encoding; bh=ATJBpEGtY5GXkLzEesebUBLEr5S9+hB69SzvZKKOlAY=; b=DzPbmG4na5CVOP9FfQonAntH6DpueHPjlGLm5jPefyYzn63zK11KleJn4RD3zqgvoB o5YWn4Z5L7nxq1etXov3qIH/DI6K+RJKixrz/tdOcbppb+WVVTg5ZeFfRWyght5MQOER 3O6f5G17bDvlVDYh/znJVQDl9ZPJS5cLqrLKU= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type :content-transfer-encoding; b=fnMx3elaCHgnpAm1C3AD8f/i85FPW/pLIqKwsUSS4m2RneP3qDBt+HutibkabPhR4V VgVpNtOIIXayfuFbUqN4d7NIYvwtA6rq2/P45n4wkl35GJX0S6lja89CWwsUVxet6ycu vWjUWpq5WHJNaEjmDh4eN02NYlfAGMZ3YpWaE= MIME-Version: 1.0 Received: by 10.215.101.7 with SMTP id d7mr462937qam.152.1233509173980; Sun, 01 Feb 2009 09:26:13 -0800 (PST) Date: Sun, 1 Feb 2009 17:26:13 +0000 Message-ID: From: Andy Talbot To: rsgb_lf_group@blacksheep.org DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,AWL=0.000 Subject: LF: 'JNT WSPR Content-Type: text/plain; charset=ISO-8859-1 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: mail_rly_antispam_dkim-d248.1 ; domain : googlemail.com DKIM : fail X-Mailer: Unknown (No Version) Why are you reporting such a low SNR, Jim ? Power was 23dBm (in spite of what it says in the message - didn't reset it after yesterday) I'm hitting the PA as hard as possible and RF is around the150 Watts region. You had positive reports on my sigs the other day This broadband PA is rated for 200 Watts, but as it is specified for 0.5 to 40MHz, is right at the very bottom of its spec range. The antenna appears to have an input R of 31 ohms at the moment and this impedance is reflected through a 5th order Elliptic LPF, and appears as a higher Z at the load for the PA, hence, presumably, the reduced Pmax. Andy G4JNT www.g4jnt.com