Return-Path: Received: from mtain-mi06.r1000.mx.aol.com (mtain-mi06.r1000.mail.aol.com [172.21.131.164]) by air-mc06.mail.aol.com (v129.4) with ESMTP id MAILINMC062-a9744c72d4628e; Mon, 23 Aug 2010 16:04:50 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-mi06.r1000.mx.aol.com (Internet Inbound) with ESMTP id BBA53380000A2; Mon, 23 Aug 2010 16:04:48 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1OndFM-00084d-8S for rs_out_1@blacksheep.org; Mon, 23 Aug 2010 21:03:56 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1OndFL-00084M-DK for rsgb_lf_group@blacksheep.org; Mon, 23 Aug 2010 21:03:55 +0100 Received: from relay2.uni-heidelberg.de ([129.206.210.211]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1OndFK-0004kc-6p for rsgb_lf_group@blacksheep.org; Mon, 23 Aug 2010 21:03:55 +0100 Received: from ix.urz.uni-heidelberg.de (cyrus-portal.urz.uni-heidelberg.de [129.206.100.176]) by relay2.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id o7NK3eGM001946 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Mon, 23 Aug 2010 22:03:40 +0200 Received: from extmail.urz.uni-heidelberg.de (extmail.urz.uni-heidelberg.de [129.206.100.140]) by ix.urz.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id o7NK3rT3025152 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Mon, 23 Aug 2010 22:03:53 +0200 Received: from [147.142.8.178] (vpn508-178.rzuser.uni-heidelberg.de [147.142.8.178]) by extmail.urz.uni-heidelberg.de (8.13.4/8.13.1) with ESMTP id o7NK3QHf013775 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Mon, 23 Aug 2010 22:03:27 +0200 Message-ID: <4C72D429.8030403@iup.uni-heidelberg.de> Date: Mon, 23 Aug 2010 22:03:53 +0200 From: =?ISO-8859-1?Q?Stefan_Sch=E4fer?= User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.11) Gecko/20100711 Thunderbird/3.0.6 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: In-Reply-To: X-Spam-Score: 1.4 (+) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,RATWARE_GECKO_BUILD=1.426 Subject: Re: LF: QRPp beaconing on 137.675kHz Content-Type: multipart/alternative; boundary="------------040401090801060905030002" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.5 required=5.0 tests=HTML_20_30,HTML_MESSAGE 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-global-disposition: G x-aol-sid: 3039400cdece4c72d46027e5 X-AOL-IP: 193.82.116.20 X-AOL-SPF: domain : blacksheep.org SPF : none X-Mailer: Unknown (No Version) --------------040401090801060905030002 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Hi Roger, How stable is your frequency? How is it generated? For QRSS-3 it can be generated by a home made LC oscillator. If you have a stable TX (frequency and drift), we could do some tests in some weeks. I plan a QRSS-600 window for 137 kHz. But first i have to find my noise generator that currently decreases the performance of the grabber :-( In QRSS-600 it will be interesting what can be done in combination with QRPP. What we have is time! :-) Best 73, Stefan/DK7FC PS: 8 uW is a litte less for our distance but maybe 8 mW in 600 :-) Am 23.08.2010 19:47, schrieb Roger Lapthorn: > This evening my QRPp beacon on *137.675kHz* is running about 8uW ERP > in QRSS3 from JO02dg (East Cambs). Any reports or screenshots from > stations in the area would be much appreciated. > > All being well, I should have my "in the air" TX loop erected in the > next week or so and more power, so I hope that soon someone else will > hear me! > > 73s > Roger G3XBM > > -- > http://g3xbm-qrp.blogspot.com/ > http://www.g3xbm.co.uk > http://www.youtube.com/user/g3xbm > G3XBM GQRP 1678 ISWL G11088 --------------040401090801060905030002 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Hi Roger,

How stable is your frequency? How is it generated? For QRSS-3 it can be generated by a home made LC oscillator. If you have a stable TX (frequency and drift), we could do some tests in some weeks. I plan a QRSS-600 window for 137 kHz. But first i have to find my noise generator that currently decreases the performance of the grabber :-( In QRSS-600 it will be interesting what can be done in combination with QRPP. What we have is time! :-)

Best 73, Stefan/DK7FC

PS: 8 uW is a litte less for our distance but maybe 8 mW in 600 :-)

Am 23.08.2010 19:47, schrieb Roger Lapthorn:
This evening my QRPp beacon on 137.675kHz is running about 8uW ERP in QRSS3 from JO02dg (East Cambs). Any reports or screenshots from stations in the area would be much appreciated.

All being well, I should have my "in the air" TX loop erected in the next week or so and more power, so I hope that soon someone else will hear me!

73s
Roger G3XBM

--
http://g3xbm-qrp.blogspot.com/
http://www.g3xbm.co.uk
http://www.youtube.com/user/g3xbm
G3XBM   GQRP 1678    ISWL G11088
--------------040401090801060905030002--