Return-Path: Received: from mtain-md01.r1000.mx.aol.com (mtain-md01.r1000.mx.aol.com [172.29.96.85]) by air-mb08.mail.aol.com (v129.10) with ESMTP id MAILINMB084-a8064dbdb94e36f; Sun, 01 May 2011 15:49:35 -0400 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-md01.r1000.mx.aol.com (Internet Inbound) with ESMTP id 7A28938000095; Sun, 1 May 2011 15:49:32 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1QGccp-0004af-VW for rs_out_1@blacksheep.org; Sun, 01 May 2011 20:48:15 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1QGccp-0004aU-4r for rsgb_lf_group@blacksheep.org; Sun, 01 May 2011 20:48:15 +0100 Received: from outbound04.telus.net ([199.185.220.223] helo=defout.telus.net) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1QGcco-0005oo-71 for rsgb_lf_group@blacksheep.org; Sun, 01 May 2011 20:48:15 +0100 Received: from edtncm04 ([199.185.220.240]) by priv-edtnes24.telusplanet.net (InterMail vM.8.01.03.00 201-2260-125-20100507) with ESMTP id <20110501194810.NZLS29925.priv-edtnes24.telusplanet.net@edtncm04> for ; Sun, 1 May 2011 13:48:10 -0600 Received: from [192.168.1.115] ([75.157.142.115]) by edtncm04 with bizsmtp id eKo91g00U2Vbb3f01Ko94B; Sun, 01 May 2011 13:48:10 -0600 X-Telus-Outbound-IP: 75.157.142.115 X-Authority-Analysis: v=1.1 cv=ttsiMYb3jbdKehNUgN5W/eyJNAWN2fFQjLB2CILdDPA= c=1 sm=2 a=PFWxWM63tqYA:10 a=VMzPyYbOJk8A:10 a=LGgl8L9ij00A:10 a=8nJEP1OIZ-IA:10 a=aatUQebYAAAA:8 a=0So6b4ck1OBW4mlXyskA:9 a=wPNLvfGTeEIA:10 a=rBKJJ2Jc0C4A:10 Message-ID: <4DBDB8F8.8060304@telus.net> Date: Sun, 01 May 2011 12:48:08 -0700 From: Scott Tilley User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.17) Gecko/20110414 Lightning/1.0b2 Thunderbird/3.1.10 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <4DBD9AB1.1000201@telus.net> <86212C3D-A6C9-486D-99BF-AD52649BA8D0@gmail.com> In-Reply-To: <86212C3D-A6C9-486D-99BF-AD52649BA8D0@gmail.com> X-Spam-Score: 1.7 (+) X-Spam-Report: autolearn=disabled,MAILTO_TO_SPAM_ADDR=0.276,RATWARE_GECKO_BUILD=1.426 Subject: Re: LF: Continued VE7TIL LF grabber outage... 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=1.9 required=5.0 tests=FROM_ENDS_IN_NUMS, MAILTO_TO_SPAM_ADDR 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: 3039ac1d60554dbdb94c07c7 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none X-Mailer: Unknown (No Version) Hi Roger The closest electrode to the ocean is feeding into a creek that itself feeds into the ocean. This electrode is <75m from the salt water. The other electrode is about 0.5km inland at my house. Within about 2-3km of the setup I can run PSK250 with good SNR and near perfect copy with on about 30W feed into the antenna. Once outside this range things degrade rapidly... Placing an electrode into the salt water won't last too long with the beachcombers, dogs and electrofobes passing by etc. 73 Scott On 5/1/2011 10:47 AM, Roger Lapthorn wrote: > Scott > > How close to the ocean are the electrodes in the earth mode tests? Can you try with one in the ocean and one some way inland? > > 73s > Roger G3XBM > > Via my 2.4GHz handheld (iPod Touch 4g) > > On 1 May 2011, at 18:38, Scott Tilley wrote: > >> Hi All >> >> The VE7TIL 2200m grabber will remain off for another week or so. This is do to a hardware failure in a wide band amplifier in the the DDS system. I'm waiting for some replacement parts as my efforts to make repairs with parts on hand were less than satisfactory. >> >> I apologize for any inconvenience this may have caused users. >> >> However, by the grabber returns to operation it will be augmented by a new VLF grabber page. I just finished installing the loop in the garden and it is working wonderfully. I spent the evening last night listening to tweeks/atmospherics and comparing my results on the VLF transmissions with that of Laurence KL7UK in AK... >> >> Work on preparing a 8970 test transmission into my LF loop continues and I expect to have the time to perform QRP tests later in May. Earth mode testing continues and so far best DX has been about 10km. Interestingly, the best path seems to be along the shore of ocean here. Inland propagation over the poor rocky ground here does not penetrate very far. >> >> 73 Scott >> VE7TIL >> >> >> >