Return-Path: Received: from mtain-dc06.r1000.mx.aol.com (mtain-dc06.r1000.mx.aol.com [172.29.64.134]) by air-di08.mail.aol.com (v129.4) with ESMTP id MAILINDI082-eb674bf3adba233; Wed, 19 May 2010 05:22:02 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-dc06.r1000.mx.aol.com (Internet Inbound) with ESMTP id A47793800009D; Wed, 19 May 2010 05:22:00 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1OEfRy-000450-HY for rs_out_1@blacksheep.org; Wed, 19 May 2010 10:20:26 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1OEfRx-00044r-Vo for rsgb_lf_group@blacksheep.org; Wed, 19 May 2010 10:20:25 +0100 Received: from relay2.uni-heidelberg.de ([129.206.210.211]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1OEfRv-0001ni-Tx for rsgb_lf_group@blacksheep.org; Wed, 19 May 2010 10:20:25 +0100 Received: from freitag.iup.uni-heidelberg.de (freitag.iup.uni-heidelberg.de [129.206.29.204]) by relay2.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id o4J9K8S7030190 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 19 May 2010 11:20:08 +0200 Received: from [129.206.29.99] (pc99.iup.uni-heidelberg.de [129.206.29.99]) by freitag.iup.uni-heidelberg.de (8.12.11.20060308/8.11.2) with ESMTP id o4J9KMXH015702 for ; Wed, 19 May 2010 11:20:22 +0200 Message-ID: <4BF3AD47.4030404@iup.uni-heidelberg.de> Date: Wed, 19 May 2010 11:20:07 +0200 From: =?ISO-8859-1?Q?Stefan_Sch=E4fer?= User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <002701caf394$44cbd980$0401a8c0@xphd97xgq27nyf> <4BEE8B1B.502@iup.uni-heidelberg.de> <4BEE92AD.7090909@iup.uni-heidelberg.de> <38A51B74B884D74083D7950AD0DD85E82A1BF2@File-Server-HST.hst.e-technik.tu-darmstadt.de> <38A51B74B884D74083D7950AD0DD85E82A1BF3@File-Server-HST.hst.e-technik.tu-darmstadt.de> <584F52DF3AAC487DBCD36E94942FDA22@JimPC> <4BF27269.2020603@iup.uni-heidelberg.de> <46148C4AA5164D30B4E3186D6C534215@JimPC> In-Reply-To: <46148C4AA5164D30B4E3186D6C534215@JimPC> X-Spam-Score: 1.4 (+) X-Spam-Report: autolearn=disabled,RATWARE_GECKO_BUILD=1.426 Subject: Re: LF: Re: DK7FCs 5th VLF experiment... 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-global-disposition: G x-aol-sid: 3039ac1d40864bf3adb81582 X-AOL-IP: 193.82.116.20 X-Mailer: Unknown (No Version) Hello Jim, Aah, ok. Well, i haven't done this test. As usual, i took all the time to transmit although i wanted to prepare that test. The QRN level was to high and Markus told me that he is not visible on my grabber so i thought there will be nothing to receive :-( And the QRN itselfe is not the best way to check receiver performance. But we will do that in the next tests! Maybe the ALPHA stns are an alternative but even tose were OFF during the last test... 73, Stefan/DK7FC Am 18.05.2010 22:55, schrieb James Moritz: > Dear Stefan, LF Group, > >> >> Which vertical antenna do you mean? >> >> 73, Stefan/DK7FC >> > > Well, on 15/05 you wrote: >> If the wind is stable and i have enough time i will do first >> receiving tests using the TX antenna! This >is to prepare the first >> VLF QSO above 100km ;-) > > I was just curious to know if you tried this, and if so, how loud the > results were... Back in 2000, I did some tests on 136k and 73k from > the 100m high Decca Navigator mast at Puckeridge. The receive SNR was > actually very good, thanks to the quiet rural location, but it did > need about 40dB of attenuation at the RX input. > > Cheers, Jim Moritz > 73 de M0BMU >