Return-Path: Received: from mtain-mi08.r1000.mx.aol.com (mtain-mi08.r1000.mail.aol.com [172.21.131.166]) by air-me01.mail.aol.com (v129.4) with ESMTP id MAILINME014-8ba34c7a12d63da; Sun, 29 Aug 2010 03:57:10 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-mi08.r1000.mx.aol.com (Internet Inbound) with ESMTP id B4CA938000089; Sun, 29 Aug 2010 03:57:08 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1OpckO-000248-FK for rs_out_1@blacksheep.org; Sun, 29 Aug 2010 08:56:12 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1OpckN-00023z-VA for rsgb_lf_group@blacksheep.org; Sun, 29 Aug 2010 08:56:11 +0100 Received: from mail-bw0-f43.google.com ([209.85.214.43]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1OpckM-0002be-DV for rsgb_lf_group@blacksheep.org; Sun, 29 Aug 2010 08:56:11 +0100 Received: by bwz16 with SMTP id 16so3559201bwz.16 for ; Sun, 29 Aug 2010 00:56:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:content-type; bh=YuKdGrJFmKcy77uXP5EoYWElEE00Hwn1JwZfr+IpdsM=; b=nUFbR8bnA3unC3iNJow2F9fwyjnGr9oujhMLG0gPOMMb+C4VSMMZ6m+aeB6sVi0BF2 idsbg+HDgRz4uA2ao/eNpsSyJkVSxppwWCQ4RgjQNREtkthFCFYbMCkMFS5CheM4FTb7 efAtU0tTNzlfdLRFpHsYpkOqGfJsLRIBBxi7w= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=qF+GfWzktvngOS7ULnGrpst5Mtr7UM/JSTLKpQQN3vSmYwmiIovDc/ldKaXfRv+7sx l/ymAL2Hk4nk+eNSgWq7GO7tNcSsf99p3JBNDN15vDYvp7bDKGbOOt8lgXERp3iuoscN zYb7Y0+rb+B8S/dVzSxNg3c1KLITvcNi8ZUis= MIME-Version: 1.0 Received: by 10.204.80.162 with SMTP id t34mr2053934bkk.81.1283068569805; Sun, 29 Aug 2010 00:56:09 -0700 (PDT) Received: by 10.204.136.67 with HTTP; Sun, 29 Aug 2010 00:56:09 -0700 (PDT) In-Reply-To: <004d01cb474d$e4c571f0$0401a8c0@xphd97xgq27nyf> References: <004d01cb474d$e4c571f0$0401a8c0@xphd97xgq27nyf> Date: Sun, 29 Aug 2010 08:56:09 +0100 Message-ID: From: Roger Lapthorn To: rsgb_lf_group@blacksheep.org DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: Re: LF: Re: WSPR beacon closing Content-Type: multipart/alternative; boundary=0016e6dd8a1c536559048ef1aeb5 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.5 required=5.0 tests=HTML_20_30,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-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-d252.2 ; domain : gmail.com DKIM : pass x-aol-sid: 3039400cded04c7a12d41a2f X-AOL-IP: 193.82.116.20 X-AOL-SPF: domain : blacksheep.org SPF : none X-Mailer: Unknown (No Version) --0016e6dd8a1c536559048ef1aeb5 Content-Type: text/plain; charset=ISO-8859-1 Mal, Whilst agreeing with you that QRSS or CW can be copied by most people on the LF bands, with WSPR you get an *immediate S/N report* via the internet database, which proved very useful to me on 500kHz earlier this year. It helps to see any improvements that are made dB by dB with great accuracy. Of course, you're correct that it needs a decent number of people on WSPR for this to work. I can only hope that more people give this excellent mode a try on 136kHz in the coming months. 73s Roger G3XBM On 29 August 2010 08:43, mal hamilton wrote: > 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. > Only a few are equipped for data modes, this limits the reports. > I have noticed and reported several times that Data modes do not always > decode, although they are perfectly visible and in some cases audible. 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 reliable > signal path and want to pass large volumes of traffic, then automated > systems are useful. > g3kev > > > > ----- Original Message ----- > *From:* Roger Lapthorn > *To:* rsgb_lf_group@blacksheep.org > *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 signal, which > was a bit of a surprise. > > If QRSS3 was just detectable I'd have expected copy on WSPR. Am I wrong and > does WSPR require several dB more signal? > > 73s > Roger G3XBM > -- > http://g3xbm-qrp.blogspot.com/ > http://www.g3xbm.co.uk > http://www.youtube.com/user/g3xbm > G3XBM GQRP 1678 ISWL G11088 > > -- http://g3xbm-qrp.blogspot.com/ http://www.g3xbm.co.uk http://www.youtube.com/user/g3xbm G3XBM GQRP 1678 ISWL G11088 --0016e6dd8a1c536559048ef1aeb5 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Mal,

Whilst agreeing with you that QRSS or CW can be copied by most= people on the LF bands, with WSPR you get an immediate S/N report= via the internet database, which proved very useful to me on 500kHz earli= er this year.=A0 It helps to see any improvements that are made dB by dB= with great accuracy.

Of course, you're correct that it needs a decent number of people= on WSPR for this to work. I can only hope that more people give this exce= llent mode a try on 136kHz in the coming months.

73s
Roger G3XBM=






On 29 August 2010 08:43= , mal hamilton <g3kevmal@talktalk.net> wrote:
For simplicity when testing on the lo= wer=20 frequencies use either CW or QRS, modes all radio amateurs can copy, there= fore 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 som= e=20 cases audible. Had these signals been keyed CW or QRS then an ID=A0would= have=20 been possible.
Avoid unnecessary=A0multi 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
=A0
=A0
----- Original Message -----
Sent: Saturday, August 28, 2010= 10:36=20 PM
Subject: LF: WSPR beacon closing=

My 137.5kHz WSPR beacon is now closing for the night. I&#= 39;ll put=20 it on again on Sunday morning and would appreciate any=20 reports.

Although G3XIZ was able to decode my QRSS3 signal well= today=20 (he got the callsign and QTH locator) , he was unable to even see the WS= PR=20 signal, which was a bit of a surprise.

If QRSS3 was just detecta= ble=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://g3xbm-qrp.blo= gspot.com/
htt= p://www.g3xbm.co.uk
http://www= .youtube.com/user/g3xbm
G3XBM=A0=A0 GQRP=20 1678=A0=A0=A0 ISWL G11088



--
http://g3xbm-qrp.blogspot.com/<= br>http://www.g3xbm.c= o.uk
http://www= .youtube.com/user/g3xbm
G3XBM=A0=A0 GQRP 1678=A0=A0=A0 ISWL G11088<= br> --0016e6dd8a1c536559048ef1aeb5--