Return-Path: Received: from rly-mb08.mx.aol.com (rly-mb08.mail.aol.com [172.21.131.166]) by air-mb05.mail.aol.com (v124.15) with ESMTP id MAILINMB053-d1e4a3bdbd1ce; Fri, 19 Jun 2009 14:41:45 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-mb08.mx.aol.com (v124.15) with ESMTP id MAILRELAYINMB082-d1e4a3bdbd1ce; Fri, 19 Jun 2009 14:41:22 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1MHj0h-0001SQ-6f for rs_out_1@blacksheep.org; Fri, 19 Jun 2009 19:40:23 +0100 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1MHj0g-0001SH-Ni for rsgb_lf_group@blacksheep.org; Fri, 19 Jun 2009 19:40:22 +0100 Received: from ttsmtp-4.cpwnetworks.com ([62.24.128.245] helo=ttsmtp.cpwnetworks.com) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1MHj0f-0000JP-2U for rsgb_lf_group@blacksheep.org; Fri, 19 Jun 2009 19:40:23 +0100 X-Path: TalkTalk-smtp X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AqoEAPx3O0pOlrwr/2dsb2JhbACEX8tQhAkF Received: from unknown (HELO mal769a60aa920) ([78.150.188.43]) by ttsmtp.cpwnetworks.com with SMTP; 19 Jun 2009 19:39:56 +0100 Message-ID: <00cb01c9f10d$57f5df90$0301a8c0@mal769a60aa920> From: "mal hamilton" To: References: <4A3A0412.4070606@btconnect.com> <20090619084511.0A64C31E702@smtps01.kuleuven.be> <002701c9f0ca$3139ee70$0301a8c0@mal769a60aa920> <20090619115408.D8EA531E702@smtps01.kuleuven.be> Date: Fri, 19 Jun 2009 19:39:56 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: RE: webSDR Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original 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=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-IP: 193.82.116.20 Rik WEBSDR is capable of receiving Broadasting stations running Megawatts - that is truely a MIRACLE !!! g3kev ----- Original Message ----- From: "Rik Strobbe" To: Sent: Friday, June 19, 2009 12:54 PM Subject: Re: LF: RE: webSDR > Mal, > > depends on what you expect from it. > At the Twente university the WEBSDR covers 8 frequency bands each > 600kHz wide (ham bands from 1.8MHz up to 21MHz plus DC-600kHz) with a > single ADC fed by a single antenna. > For me that is a real masterpiece, even though the system is not > optimized for 500kHz. > As far as I have tested it works pretty good on HF and for LF/MF > broadcast. > Just don't expect the same sensitivity from such a WEBSDR as from > some grabbers dedicated to 500kHz. > > 73, Rik ON7YD > > At 12:39 19/06/2009, you wrote: >>WEBSDR is no good from what you have observed. >>de G3KEV >> >>----- Original Message ----- >>From: "Rik Strobbe" >>To: >>Sent: Friday, June 19, 2009 9:45 AM >>Subject: Re: LF: RE: webSDR >> >> >> > Hello Richard, all, >> > >> > I did some 500kHz tests last night with the Twente websdr: >> > - I cannot hear or see my own signal on the websdr (abt. 1W ERP, >> > distance 200km) >> > - While I heard G3KEV 599+ here I could not hear or see on Mal on the >> > websdr (distance G3KEV-me = 510km, distance G3KEV-Twente = 540km) >> > I guess a W3DZZ dipole is not the perfect antenna for 600m. >> > >> > The above is not meant to criticize the WEBSDR project of the Twente >> > university (all respect for this masterpiece), just to inform that >> > one shouldn't panic it your 500kHz signal doesn't show up. >> > >> > 73, Rik ON7YD - OR7T >> > >> > At 22:29 18/06/2009, you wrote: >> >>Amazing! >> >> >> >>I heard a couple of NDBs, "LAA" and "LI". You can also see what >> >>frequencies >> >>the other users are using, which is interesting in a curious way! >> >> >> >>73, Dave G3WCB IO91RM >> >> >> >>-----Original Message----- >> >>From: owner-rsgb_lf_group@blacksheep.org >> >>[mailto:owner-rsgb_lf_group@blacksheep.org]On Behalf Of Richard >> >>Newstead >> >>Sent: 18 June 2009 10:09 >> >>To: rsgb_lf_group@blacksheep.org >> >>Subject: LF: webSDR >> >> >> >> >> >>Now covers LF/MF: >> >> >> >>http://websdr.ewi.utwente.nl:8901/ >> >> >> >>73 >> >> >> >>Richard >> >>G3CWI >> > DZZ >> > >> > >> >> >>-------------------------------------------------------------------------------- >> >> >> >>No virus found in this incoming message. >>Checked by AVG - www.avg.com >>Version: 8.5.339 / Virus Database: 270.12.79/2186 - Release Date: 06/18/09 >>17:59:00 > > -------------------------------------------------------------------------------- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.339 / Virus Database: 270.12.79/2186 - Release Date: 06/18/09 17:59:00