Return-Path: Received: from mtain-mh02.r1000.mx.aol.com (mtain-mh02.r1000.mx.aol.com [172.29.96.214]) by air-db04.mail.aol.com (v129.10) with ESMTP id MAILINDB044-86984de2a58f3c3; Sun, 29 May 2011 15:59:11 -0400 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mh02.r1000.mx.aol.com (Internet Inbound) with ESMTP id EDA3C3800009B; Sun, 29 May 2011 15:59:09 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1QQm7z-0007U6-7l for rs_out_1@blacksheep.org; Sun, 29 May 2011 20:58:23 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1QQm7y-0007Tx-Rr for rsgb_lf_group@blacksheep.org; Sun, 29 May 2011 20:58:22 +0100 Received: from smtpout05.highway.telekom.at ([195.3.96.77] helo=email.aon.at) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1QQm7w-000342-3T for rsgb_lf_group@blacksheep.org; Sun, 29 May 2011 20:58:22 +0100 Received: (qmail 12199 invoked from network); 29 May 2011 19:58:13 -0000 Received: from 93-82-6-71.adsl.highway.telekom.at (HELO [192.168.1.101]) ([93.82.6.71]) (envelope-sender ) by smarthub99.highway.telekom.at (qmail-ldap-1.03) with SMTP for ; 29 May 2011 19:58:13 -0000 From: Gerhard Hickl To: rsgb_lf_group@blacksheep.org In-Reply-To: <002801cc1e38$c42eb920$0401a8c0@xphd97xgq27nyf> References: <1306697738.1967.9.camel@gerhard-desktop> <002801cc1e38$c42eb920$0401a8c0@xphd97xgq27nyf> Date: Sun, 29 May 2011 21:58:11 +0200 Message-ID: <1306699091.1967.20.camel@gerhard-desktop> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: Re: OE3GHB Grabbers Content-Type: text/plain; charset="UTF-8" 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: 3039ac1d60d64de2a58d1406 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Hey Mal! Thank you for the hint. I already prepared for the big EMP by buying some canned fish and water in bottles!!!!!!! Do you think a C3M-tube would be suitable? I have got plenty of them..... 73 Gerhard Am Sonntag, den 29.05.2011, 20:44 +0100 schrieb mal hamilton: > Gerhard > Be prepared for the Big EMP and use a tube preferably a 4CX1500 instead of > FET preamps. > g3kev > > ----- Original Message ----- > From: "Gerhard Hickl" > To: > Sent: Sunday, May 29, 2011 8:35 PM > Subject: LF: OE3GHB Grabbers > > > > Hello group! > > > > Both of my grabbers for LF and VLF are working normally again since > > yesterday evening. After a distant thunderstorm last week, the VLF > > grabber failed because of a damaged FET in the first stage of the > > E-Probe. > > > > I replaced the transistor and added three protecting diodes into the > > first stage. I hope this will solve the problem definitely. > > > > The LF-grabber which was not affected got stuck last Friday evening when > > the PC which is running all the instances of SpecLab hang. This also > > happened because of a local thunderstorm. So you see, on LF and VLF > > there are many other challenges beside propagation and noise..... > > > > LF: > > members.aon.at/grabber > > > > VLF: > > members.aon.at/grabber/VLF > > > > 73 > > OE3GHB > > Gerhard > > > > > > > > > > > > > > > > > >