Return-Path: Received: from mtain-dh05.r1000.mx.aol.com (mtain-dh05.r1000.mx.aol.com [172.29.65.25]) by air-dc06.mail.aol.com (v126.13) with ESMTP id MAILINDC064-86a44b521ef11bb; Sat, 16 Jan 2010 15:17:53 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-dh05.r1000.mx.aol.com (Internet Inbound) with ESMTP id 6B3B6380000B6; Sat, 16 Jan 2010 15:17:51 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1NWF4S-0004LL-6I for rs_out_1@blacksheep.org; Sat, 16 Jan 2010 20:16:32 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1NWF4R-0004LC-GC for rsgb_lf_group@blacksheep.org; Sat, 16 Jan 2010 20:16:31 +0000 Received: from denhaag.ewi.utwente.nl ([130.89.10.11]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1NWF4P-0004xk-67 for rsgb_lf_group@blacksheep.org; Sat, 16 Jan 2010 20:16:31 +0000 Received: from ewi341.ewi.utwente.nl (ewi341.ewi.utwente.nl [130.89.12.233]) by denhaag.ewi.utwente.nl (8.13.6/8.13.6) with ESMTP id o0GKGPR9017758 for ; Sat, 16 Jan 2010 21:16:25 +0100 (MET) Received: by ewi341.ewi.utwente.nl (Postfix, from userid 651) id 08E737C833D; Sat, 16 Jan 2010 21:16:27 +0100 (CET) Date: Sat, 16 Jan 2010 21:16:26 +0100 From: Pieter-Tjerk de Boer To: rsgb_lf_group@blacksheep.org Message-ID: <20100116201626.GK14727@cs.utwente.nl> Mail-Followup-To: rsgb_lf_group@blacksheep.org Mime-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.9i X-Spam-Score: -5.379 () ALL_TRUSTED,AWL,BAYES_00,J_CHICKENPOX_23,WEIRD_PORT X-Scanned-By: MIMEDefang 2.52 on 130.89.10.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-3.0rc3 (denhaag.ewi.utwente.nl [130.89.10.11]); Sat, 16 Jan 2010 21:16:26 +0100 (MET) X-Karma: unknown: X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: LF: grabber at Twente WebSDR Content-Type: text/plain; charset=us-ascii 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=WEIRD_PORT 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: 3039ac1d41194b521eef2400 X-AOL-IP: 193.82.116.20 X-Mailer: Unknown (No Version) Hello all, I've added an experimental 137 kHz "grabber" to the Twente WebSDR receiver. It can be found at http://websdr.ewi.utwente.nl:8901/grabber.html The receiver is located in JO32KF, in Enschede in the east of the Netherlands. The antenna currently is an end-fed 80m long wire on the roof of a 40m high building. However, I'm rather new to amateur LF activity, so I don't know whether the frequency range and scroll speed are appropriate for typical QRSS activity on this band; comments on this are welcome! 73, Pieter-Tjerk, PA3FWM