Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-da03.r1000.mx.aol.com (Internet Inbound) with ESMTP id CDB8238000089; Tue, 8 Nov 2011 15:29:04 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1RNsH7-0006aP-9l for rs_out_1@blacksheep.org; Tue, 08 Nov 2011 20:28:05 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1RNsH6-0006aG-Sa for rsgb_lf_group@blacksheep.org; Tue, 08 Nov 2011 20:28:04 +0000 Received: from smtp6.freeserve.com ([193.252.22.190]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1RNsH4-00023S-OV for rsgb_lf_group@blacksheep.org; Tue, 08 Nov 2011 20:28:04 +0000 Received: from me-wanadoo.net (localhost [127.0.0.1]) by mwinf3602.me.freeserve.com (SMTP Server) with ESMTP id 778197000092 for ; Tue, 8 Nov 2011 21:27:57 +0100 (CET) Received: from me-wanadoo.net (localhost [127.0.0.1]) by mwinf3602.me.freeserve.com (SMTP Server) with ESMTP id 6A8CC7000095 for ; Tue, 8 Nov 2011 21:27:57 +0100 (CET) Received: from AGB (unknown [2.26.29.160]) by mwinf3602.me.freeserve.com (SMTP Server) with SMTP id 4D57A7000092 for ; Tue, 8 Nov 2011 21:27:57 +0100 (CET) X-ME-UUID: 20111108202757316.4D57A7000092@mwinf3602.me.freeserve.com Message-ID: <4E0E7122F96648A88F0D2C7BE06884AA@AGB> From: "Graham" To: References: <4EB6E548.7010206@iup.uni-heidelberg.de> <4EB981B2.90607@iup.uni-heidelberg.de> <4EB98A5E.8030005@iup.uni-heidelberg.de> In-Reply-To: <4EB98A5E.8030005@iup.uni-heidelberg.de> Date: Tue, 8 Nov 2011 20:27:57 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 X-Antivirus: avast! (VPS 111108-1, 08/11/2011), Outbound message X-Antivirus-Status: Clean X-Spam-Score: 0.2 (/) X-Spam-Report: autolearn=disabled,RCVD_ILLEGAL_IP=0.234 Subject: Re: LF: Arcing... Content-Type: text/plain; format=flowed; charset="ISO-8859-15"; reply-type=response 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=0.1 required=5.0 tests=MISSING_OUTLOOK_NAME 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-SCOLL-SCORE: 0:2:474997248:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d404b4eb991101749 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Assume you pulled the fuse first ... unless you have a clock work=20 qrsss generator I would not trust windows ..! G. -------------------------------------------------- From: "Stefan Sch=E4fer" Sent: Tuesday, November 08, 2011 8:00 PM To: Subject: Re: LF: Arcing... > > Good idea ;-) But it was dark so i didn't find a target. And as i have=20 > been on the roof, 5 minutes ago, i installed it on the spark gap. Betwe= en=20 > the 7 and F of my QRSS-120 transmission;-) Now arcing is history! > > 73, Stefan > > Am 08.11.2011 20:31, schrieb Graham: >> what are you going to shoot at :) >> >> -------------------------------------------------- >> From: "Stefan Sch=E4fer" >> Sent: Tuesday, November 08, 2011 7:23 PM >> To: >> Subject: Re: LF: Arcing... >> >>> >>> That will solve the problem:=20 >>> http://dl.dropbox.com/u/19882028/LF/Electrode.JPG >>> >>> 73 to all. >>> >>> Stefan >>> >>> Am 06.11.2011 20:51, schrieb Stefan Sch=E4fer: >>>> Seems i need some improvements on the spark gap of my LF antenna.=20 >>>> Depending on the humidity and wind there is some arcing during the=20 >>>> transmissions. These look very fascinating i find. Anyway i have to = add=20 >>>> a spherical electrode there and increase the gap distance, especiall= y=20 >>>> for VLF ;-) >>>> >>>> A working colleague of me is a (semi) proffessional photographer=20 >>>> (hobby) and i asked him to take some nice pictures. He has an excell= ent=20 >>>> equipment i find but he means he should have taken a different lens = for=20 >>>> these pictures. Anyway, i really like them. >>>> When arcing at the ends of a LF antenna is discussed, sometimes a=20 >>>> picture can help a newcomer what is meant. Here are some more exampl= es,=20 >>>> in high resolution (abt. 3 MB each) >>>> >>>> http://dl.dropbox.com/u/19882028/LF/20111106-19h54m07s-FF7_8461.jpg >>>> http://dl.dropbox.com/u/19882028/LF/20111106-19h58m31s-FF7_8466.jpg >>>> http://dl.dropbox.com/u/19882028/LF/20111106-20h02m13s-FF7_8470.jpg >>>> http://dl.dropbox.com/u/19882028/LF/20111106-20h03m58s-FF7_8472.jpg >>>> >>>> 73, Stefan/DK7FC >>> >>> >> >> >> > >=20