Return-Path: Received: from mtain-df04.r1000.mx.aol.com (mtain-df04.r1000.mx.aol.com [172.29.64.216]) by air-da10.mail.aol.com (v129.4) with ESMTP id MAILINDA103-86424c7a0ffb3e4; Sun, 29 Aug 2010 03:44:59 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-df04.r1000.mx.aol.com (Internet Inbound) with ESMTP id 1AAFB3800008A; Sun, 29 Aug 2010 03:44:57 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1OpcYT-0001pn-VK for rs_out_1@blacksheep.org; Sun, 29 Aug 2010 08:43:53 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1OpcYS-0001pe-76 for rsgb_lf_group@blacksheep.org; Sun, 29 Aug 2010 08:43:52 +0100 Received: from out1.ip08ir2.opaltelecom.net ([62.24.128.244]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1OpcYR-0002Uj-8p for rsgb_lf_group@blacksheep.org; Sun, 29 Aug 2010 08:43:52 +0100 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AogFANqseUxOk8qj/2dsb2JhbACPUwODXY0mcbdrhTcEgVeLNg X-IronPort-AV: E=Sophos;i="4.56,286,1280703600"; d="scan'208,217";a="459105370" Received: from unknown (HELO xphd97xgq27nyf) ([78.147.202.163]) by out1.ip08ir2.opaltelecom.net with SMTP; 29 Aug 2010 08:43:44 +0100 Message-ID: <004d01cb474d$e4c571f0$0401a8c0@xphd97xgq27nyf> From: "mal hamilton" To: References: Date: Sun, 29 Aug 2010 08:43:38 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: LF: Re: WSPR beacon closing Content-Type: multipart/alternative; boundary="----=_NextPart_000_004A_01CB4756.464BE690" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=HTML_30_40,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-global-disposition: G x-aol-sid: 3039ac1d40d84c7a0ff92651 X-AOL-IP: 193.82.116.20 X-AOL-SPF: domain : blacksheep.org SPF : none ------=_NextPart_000_004A_01CB4756.464BE690 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable For simplicity when testing on the lower frequencies use either CW or= QRS, modes all radio amateurs can copy, therefore a bigger audience= for reports.=20 Only a few are equipped for data modes, this limits the reports.=20 I have noticed and reported several times that Data modes do not alway= s decode, although they are perfectly visible and in some cases audibl= e. Had these signals been keyed CW or QRS then an ID would have been= possible. Avoid unnecessary multi layers of modulation except you have a reliabl= e signal path and want to pass large volumes of traffic, then automate= d systems are useful. g3kev ----- Original Message -----=20 From: Roger Lapthorn=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Saturday, August 28, 2010 10:36 PM Subject: LF: WSPR beacon closing My 137.5kHz WSPR beacon is now closing for the night. I'll put it on= again on Sunday morning and would appreciate any reports. Although G3XIZ was able to decode my QRSS3 signal well today (he got= the callsign and QTH locator) , he was unable to even see the WSPR si= gnal, which was a bit of a surprise.=20 If QRSS3 was just detectable I'd have expected copy on WSPR. Am I wr= ong and does WSPR require several dB more signal? 73s Roger G3XBM --=20 http://g3xbm-qrp.blogspot.com/ http://www.g3xbm.co.uk http://www.youtube.com/user/g3xbm G3XBM GQRP 1678 ISWL G11088 ------=_NextPart_000_004A_01CB4756.464BE690 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
For simplicity when testing on the lo= wer=20 frequencies use either CW or QRS, modes all radio amateurs can copy,= therefore a=20 bigger audience for reports.
Only a few are equipped for data mode= s, this limits=20 the reports.
I have noticed and reported several= times that Data=20 modes do not always decode, although they are perfectly visible and in= some=20 cases audible. Had these signals been keyed CW or QRS then an ID = would have=20 been possible.
Avoid unnecessary multi layers= of modulation=20 except you have a reliable signal path and want to pass large volumes= of=20 traffic, then automated systems are useful.
g3kev
 
 
----- Original Message -----
Sent: Saturday, August 28, 20= 10 10:36=20 PM
Subject: LF: WSPR beacon clos= ing

My 137.5kHz WSPR beacon is now closing for the night.= I'll put=20 it on again on Sunday morning and would appreciate any=20 reports.

Although G3XIZ was able to decode my QRSS3 signal we= ll today=20 (he got the callsign and QTH locator) , he was unable to even see th= e WSPR=20 signal, which was a bit of a surprise.

If QRSS3 was just det= ectable=20 I'd have expected copy on WSPR. Am I wrong and does WSPR require sev= eral dB=20 more signal?

73s
Roger G3XBM
--
http://g= 3xbm-qrp.blogspot.com/
http://www.g3xbm.co.uk
http://www.youtube.com/= user/g3xbm
G3XBM   GQRP=20 1678    ISWL G11088
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