Return-Path: Received: from rly-da07.mx.aol.com (rly-da07.mail.aol.com [172.19.129.81]) by air-da05.mail.aol.com (v126.13) with ESMTP id MAILINDA051-a794b5098c615d; Fri, 15 Jan 2010 11:33:33 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-da07.mx.aol.com (v125.7) with ESMTP id MAILRELAYINDA071-a794b5098c615d; Fri, 15 Jan 2010 11:33:23 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1NVp3N-0001JT-FM for rs_out_1@blacksheep.org; Fri, 15 Jan 2010 16:29:41 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1NVp3N-0001JJ-0j for rsgb_lf_group@blacksheep.org; Fri, 15 Jan 2010 16:29:41 +0000 Received: from out1.ip06ir2.opaltelecom.net ([62.24.128.242]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1NVp3H-0004Qg-9f for rsgb_lf_group@blacksheep.org; Fri, 15 Jan 2010 16:29:40 +0000 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AskLAF8mUEtOkaFE/2dsb2JhbACCFYYt0SWEMQQ X-IronPort-AV: E=Sophos;i="4.49,282,1262563200"; d="scan'208,217";a="447427778" Received: from unknown (HELO laptopcore2) ([78.145.161.68]) by out1.ip06ir2.opaltelecom.net with ESMTP; 15 Jan 2010 16:29:11 +0000 From: "g3zjo" To: Date: Fri, 15 Jan 2010 16:29:11 -0000 Message-ID: <001301ca95ff$de6858e0$0202a8c0@laptopcore2> MIME-Version: 1.0 X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.2616 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2670 X-Karma: unknown: X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: LF: 500KHz-WSPR-QRSS3 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0014_01CA95FF.DE6858E0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.3 required=5.0 tests=HTML_50_60, HTML_FONTCOLOR_UNKNOWN,HTML_MESSAGE 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 ------=_NextPart_000_0014_01CA95FF.DE6858E0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit LF Group Yesterday I increased my TX power on 500KHz by 10dB so as to expand my coverage, maybe the QRPp 13uW ERP has reached its limits. 130uW ERP brought M0LMH into my WSPR coverage (ON,PA,DL and GM4SLV at 890Km too). I am not a dog lover but I do tend to associate dog breeds with people, it takes a Rottweiler, (or 2) to get hold of an idea, stick with it and produce a complete system like WSPR. It takes a Bloodhound to search out the QRSS3 on my weak signal, M0LMH is the Bloodhound. The practical test of WSPR copy-ability against QRSS3 FSK on 500KHz confirmed the expected. Only M0LMH knows the precise comparative noise and levels of difficulty. As I see it, WSPR decoded CALL - LOC - POWER information at -27dB. At this level The QRSS3 content was visible but undecipherable. Not until there was a drop in QRN / QRM did it become possible to read a 2 letter Ident. Later, as the noise dropped, more information was readable using 3 level QRSS3 with equal Dot and Dash lengths. Following that, with even less noise, 5 unit Hell became almost 100% readable but not quite. I don't know if my signal was audible at any time, which would have enabled any copy by ear. Congratulations and thanks to M0LMH for a most interesting test. Eddie G3ZJO ------=_NextPart_000_0014_01CA95FF.DE6858E0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

LF Group=

Yesterday I inc= reased my TX power on 500KHz by 10dB so as to expand my coverage, maybe the QRPp 13uW ERP has reach= ed its limits.

130uW ERP broug= ht M0LMH into my WSPR coverage (ON,PA,DL and GM4SLV at 890Km too).

I am not a dog= lover but I do tend to associate dog breeds with people, it takes a Rottweiler, (or 2) to get= hold of an idea, stick with it and produce a complete system like WSPR. = It takes a Bloodhound to search out the QRSS3 on my weak signal, M0LMH is the Bloodhound.

The practical= test of WSPR copy-ability against QRSS3 FSK on 500KHz confirmed the expected. Only M0LMH knows= the precise comparative noise and levels of difficulty.

As I see it, WS= PR decoded CALL – LOC - POWER information at -27dB. At this level The QRSS3 content was visi= ble but undecipherable. Not until there was a drop in QRN / QRM did it become= possible to read a 2 letter Ident. Later, as the noise dropped, more informatio= n was readable using 3 level QRSS3 with equal Dot and Dash lengths. Followin= g that, with even less noise, 5 unit Hell became almost 100% readable but not= quite. I don’t know if my signal was audible at any time, which would hav= e enabled any copy by ear.

Congratulations= and thanks to M0LMH for a most interesting test.

Eddie G3Z= JO

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