Return-Path: Received: from rly-mf08.mx.aol.com (rly-mf08.mail.aol.com [172.20.29.178]) by air-mf08.mail.aol.com (v125.7) with ESMTP id MAILINMF082-9754ab7a36a34d; Mon, 21 Sep 2009 12:02:08 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-mf08.mx.aol.com (v125.7) with ESMTP id MAILRELAYINMF083-9754ab7a36a34d; Mon, 21 Sep 2009 12:01:49 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1MplKA-000537-Kb for rs_out_1@blacksheep.org; Mon, 21 Sep 2009 17:01:10 +0100 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1MplKA-00052w-58 for rsgb_lf_group@blacksheep.org; Mon, 21 Sep 2009 17:01:10 +0100 Received: from moutng.kundenserver.de ([212.227.17.8]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1MplK0-0004E0-7F for rsgb_lf_group@blacksheep.org; Mon, 21 Sep 2009 17:01:02 +0100 Received: from [192.168.1.64] (host86-177-29-128.range86-177.btcentralplus.com [86.177.29.128]) by mrelayeu.kundenserver.de (node=mrbap1) with ESMTP (Nemesis) id 0MKt2u-1MplJs3GqD-000Gmf; Mon, 21 Sep 2009 18:00:53 +0200 From: "Dave Sergeant" To: rsgb_lf_group@blacksheep.org Date: Mon, 21 Sep 2009 17:00:53 +0100 MIME-Version: 1.0 Message-ID: <4AB7A335.32687.23E9727@dave.davesergeant.com> In-reply-to: <1680319571.94273.1253539053273.JavaMail.mail@webmail06> References: <1680319571.94273.1253539053273.JavaMail.mail@webmail06> X-mailer: Pegasus Mail for Windows (4.51) Content-description: Mail message body X-Provags-ID: V01U2FsdGVkX1+I800Z3hALuhk878fY9l/GRhcCmx2Ww+hcXGy kQAO9XGd/x1EbTbzFym5KeOu5IvByhOXlUe1IgDpzkqI7Cn6h4 QjpklCH84OWSh0qEHF3fZOWYnj8dgpI X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: LF: Re: defence of WSPR Signals Content-type: text/plain; charset=US-ASCII 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-IP: 193.82.116.20 On 21 Sep 2009 at 13:17, Peter Cleall wrote: > I have always been interested in propagation. > These WSPR signals are seen by some as repetitious rubbish. Well having spent a few days looking at WSPR I would tend to fit best in the 'repetitious rubbish' group.... WSPR is specifically designed for weak signal reception, and there is certainly a case of doing this to catch openings to our friends in W and BY land. But at a local level I don't think it serves much purpose - it is true that you can automatically monitor propagation and QSB rates, but a 2 minute sampling time is FAR too long to get any sensible figures from this. At my QTH every signal I have copied has been perfectly readable by ear, some by a very considerable margin. Once you have monitored for a few hours there is little more to be gained and it is a painfully slow mode to even consider as a QSO mode. The USA amateurs are fortunate in having a considerably wider band than us. To have what is effective beacon transmissions there for long periods in our 3kHz is not the best use of our space. I shall be very shortly re-configuring my vertical back to its Top Band mode for the winter season. If the future of 500kHz lies only in WSPR beaconing it is a sad life being an amateur and I have far more useful things to do on the other bands. 73 Dave G3YMC http://www.davesergeant.com