Return-Path: Received: from rly-df11.mx.aol.com (rly-df11.mail.aol.com [172.19.156.24]) by air-df02.mail.aol.com (v123.4) with ESMTP id MAILINDF022-5884a2ec2d535f; Tue, 09 Jun 2009 16:15:38 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-df11.mx.aol.com (v123.4) with ESMTP id MAILRELAYINDF111-5884a2ec2d535f; Tue, 09 Jun 2009 16:15:20 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ME7iU-0003L8-CN for rs_out_1@blacksheep.org; Tue, 09 Jun 2009 21:14:42 +0100 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ME7iT-0003Kz-Vm for rsgb_lf_group@blacksheep.org; Tue, 09 Jun 2009 21:14:42 +0100 Received: from moutng.kundenserver.de ([212.227.126.188]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1ME7iS-0007Gh-CD for rsgb_lf_group@blacksheep.org; Tue, 09 Jun 2009 21:14:42 +0100 Received: from [192.168.1.5] (host86-177-27-19.range86-177.btcentralplus.com [86.177.27.19]) by mrelayeu.kundenserver.de (node=mreu2) with ESMTP (Nemesis) id 0MKv5w-1ME7iM2J5C-0001zv; Tue, 09 Jun 2009 22:14:34 +0200 From: "Dave Sergeant" To: rsgb_lf_group@blacksheep.org Date: Tue, 09 Jun 2009 21:14:36 +0100 MIME-Version: 1.0 Message-ID: <4A2ED0BC.28196.32E4C24@dave.davesergeant.com> In-reply-to: References: X-mailer: Pegasus Mail for Windows (4.41) Content-description: Mail message body X-Provags-ID: V01U2FsdGVkX19yFvWkO/R/mS5v+cIIXjx0p/5jT5EaV7IECd+ NK4GCj4++7y1nV094gD8wOjmah8C3Kgfjx4nLCcOvqvmjmkCOS 71frPPietzKU//+G9WdCpspw72LEmdE X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: M0BMU small antenna test beacon Content-type: text/plain; charset=US-ASCII 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 Jim The full power sequence is a solid s9 on the meter. I can hear all of the 5 second dashes - s8, s7,s5, s3 and s1 on meter. Rather peculiarly each of the dashes has long 'rounded' on and off keying edges sounding like deep QSB - but is not, it is on the transmission... The keying of beacon itself is a little soft but not so severe. The lowest power tone is just above my noise level - 30dB down on 100mw = 0.1mW?. In Bracknell IO91PJ 73 Dave G3YMC On 9 Jun 2009 at 20:48, James Moritz wrote: > Dear LF Group, > > As art of continuing investigations into antennas, grounds, etc., I am > running a beacon at the moment on 503.5kHz - I am testing a small "/P" > antenna similar to what G3CWI proposed to use a couple of weeks back. It > is a 9m high "umbrella" with 4 x 5m long top loading wires sloping at > about 45degrees. Ground system is 4 x 20m radial wires. > > The beacon is transmitting an 8wpm CW identifier, followed by five 5 > second dashes at reducing power levels in steps of 6dB. The maximum ERP > is somewhere in the region of 100mW ERP. The sequence repeats every 2 > mins roughly. > > I'll leave it running until after dark at least - any reports would be > very welcome. > > Cheers, Jim Moritz > 73 de M0BMU > > http://www.davesergeant.com