Return-Path: Received: from rly-df11.mx.aol.com (rly-df11.mail.aol.com [172.19.156.24]) by air-df06.mail.aol.com (v121_r5.5) with ESMTP id MAILINDF061-58c49708ea938a; Fri, 16 Jan 2009 08:42:25 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-df11.mx.aol.com (v121_r4.4) with ESMTP id MAILRELAYINDF115-58c49708ea938a; Fri, 16 Jan 2009 08:42:06 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1LNox9-0000I4-O8 for rs_out_1@blacksheep.org; Fri, 16 Jan 2009 13:41:39 +0000 Received: from [193.82.59.130] (helo=relay2.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1LNox9-0000Hq-8p for rsgb_lf_group@blacksheep.org; Fri, 16 Jan 2009 13:41:39 +0000 Received: from mbox2.netikka.net ([213.250.81.203]) by relay2.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1LNox4-0004kB-H5 for rsgb_lf_group@blacksheep.org; Fri, 16 Jan 2009 13:41:38 +0000 Received: from mbox2-vams.netikka.net (mbox2 [127.0.0.1]) by mbox2-scanned.netikka.net (Postfix) with SMTP id 2AD41408150 for ; Fri, 16 Jan 2009 15:41:26 +0200 (EET) Received: from imp1.netikka.net (imp1.netikka.net [213.250.85.154]) by mbox2.netikka.net (Postfix) with ESMTP id 225B6408150 for ; Fri, 16 Jan 2009 15:41:26 +0200 (EET) Received: from localhost (localhost [127.0.0.1]) by imp1.netikka.net (Postfix) with ESMTP id 1C480495BE2 for ; Fri, 16 Jan 2009 15:41:26 +0200 (EET) Received: from eur-info24.infonet.com (eur-info24.infonet.com [213.31.11.24]) by imp.netikka.net (IMP) with HTTP for ; Fri, 16 Jan 2009 15:41:26 +0200 Message-ID: <1232113286.49708e86184e6@imp.netikka.net> Date: Fri, 16 Jan 2009 15:41:26 +0200 From: Paul-Henrik To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 User-Agent: Internet Messaging Program (IMP) 3.2.6 X-Originating-IP: 213.31.11.24 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: LF: 136kHz test from OH1LSQ Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable 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-Mailer: Unknown (No Version) LF, Hello all! I plan to run a test transmission on 136kHz during Friday, Saturday and Sund= ay night. The setup is very preliminary/temporary and can not be left unattende= d for longer periods. The unprotected ATU has to be brought indoors when not i= n use. We expect cold dry weather for the weekend so it should survive while i= n use. The estimated ERP based on tests made yesterday is only 20mW. This figu= re does not include absorption in nearby objects. Initially the transmission will be CW only but QRSS3 with CW ID will follow=20= as soon as I have the ON7YD keyer software and interface set up. Antenna: Inverted-L 15m high with 35m horizontal wire. 20 radials 5-25m long= , half of them terminated in 0.5m deep earth rods. Rtot estimated to roughly 100ohms. ATU: Variometer + large loading coil TX: Keyed 1W 50ohm DDS signal generator feeding a pair of parallell 807's in class AB1 trough a wideband 1:5 voltage stepup transformer providing 80Vp-p=20= for the control grids. Classic parallel tuned tank with adjustable coupling coil= . Power output is measured to 65W at 810V/150mA on the plates. Unless I receive other suggestions for the QRG that will enable QRM-free QRS= S reception for interested stations the frequency will be 136.40kHz. I can not receive on 136kHz during this test. I will inform when QRV/QRT. Best regards Paul-Henrik / OH1LSQ Vaasa / KP03SD