Return-Path: Received: from rly-me04.mx.aol.com (rly-me04.mail.aol.com [172.20.83.38]) by air-me06.mail.aol.com (v125.7) with ESMTP id MAILINME064-9b34ab2927683; Thu, 17 Sep 2009 15:48:35 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-me04.mx.aol.com (v125.7) with ESMTP id MAILRELAYINME047-9b34ab2927683; Thu, 17 Sep 2009 15:48:08 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1MoMwz-0001nU-4l for rs_out_1@blacksheep.org; Thu, 17 Sep 2009 20:47:29 +0100 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1MoMwy-0001nL-Lt for rsgb_lf_group@blacksheep.org; Thu, 17 Sep 2009 20:47:28 +0100 Received: from mail-yw0-f233.google.com ([209.85.211.233]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1MoMwo-0006iX-TG for rsgb_lf_group@blacksheep.org; Thu, 17 Sep 2009 20:47:21 +0100 Received: by ywh22 with SMTP id 22so143673ywh.4 for ; Thu, 17 Sep 2009 12:47:10 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: Received: by 10.211.146.6 with SMTP id y6mr547590ebn.7.1253216830162; Thu, 17 Sep 2009 12:47:10 -0700 (PDT) Message-ID: <001636c5bd00fd0a680473cb4780@google.com> Date: Thu, 17 Sep 2009 19:47:10 +0000 From: rogerlapthorn@gmail.com To: rsgb_lf_group@blacksheep.org X-Spam-Score: 1.5 (+) X-Spam-Report: autolearn=disabled,HTML_10_20=0.945,HTML_MESSAGE=0.001,NO_REAL_NAME=0.55 Subject: Re: LF: Re: Re: WSPR threshold reports Content-Type: multipart/alternative; boundary=001636c5bd00fd0a4f0473cb477d 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_MESSAGE,NO_REAL_NAME 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 X-Mailer: Unknown (No Version) --001636c5bd00fd0a4f0473cb477d Content-Type: text/plain; charset=ISO-8859-1; format=flowed; delsp=yes Thanks for the screen shots Jim. I continue to be simply amazed that my tiny signal is being decoded by ANYONE at all. It certainly proves what a wonderful resource WSPR is for experimenting with QRP, antennas, rigs etc. on any band, but especially on 136 and 500kHz. 73s Roger G3XBM On 17 Sep 2009 20:29, James Moritz wrote: > Dear Dave, Roger, LF Group, > I have attached a screen shot of WSPR signals from SM6BHZ and G3XBM > received just now, using Spectrum Lab set up for QRSS3 reception. The > corresponding WSPR spots were: > 1836 -12 0.0 0.503925 0 SM6BHZ JO57 33 > 1840 -27 2.9 0.503890 0 G3XBM JO02 0 > SM6BHZ was an audible signal which would have been weak but copy-able CW > - I expect Gus's signal will pick up by 10dB or so as the night > progresses. G3XBM is never audible at all - the QRN is building rapidly > now, but during the day I get 100% copy at about -25 or -26dB; when noise > levels build up I sometimes get correct copy at -30dB or so. So that's > what it looks like when it is working ;-) > It makes no detectable difference whether I use the SSB filter or 250Hz > CW filter on the IC718 - even the local signals on 500k are not really > strong enough to overload the audio, provided the RF gain is backed well > off so that the S meter reads about s7 or 8. You do need the narrow > filter on 136k of course. > Cheers, Jim Moritz > 73 de M0BMU --001636c5bd00fd0a4f0473cb477d Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Thanks for the screen shots Jim.

I continue to be simply amaze= d that my tiny signal is being decoded by ANYONE at all. It certainly pro= ves what a wonderful resource WSPR is for experimenting with QRP, antennas= , rigs etc. on any band, but especially on 136 and 500kHz.

73s=
Roger G3XBM



On 17 Sep 2009 20:29, James Mor= itz <james.moritz@btopenworld.com> wrote:
> Dear Dave, Roger= , LF Group,
>
>
>
> I have attached a= screen shot of WSPR signals from SM6BHZ and G3XBM received just now, usin= g Spectrum Lab set up for QRSS3 reception. The corresponding WSPR spots we= re:
>
>
>
> 1836 -12 =A00.0 =A0 0.50392= 5 =A00 SM6BHZ JO57 33
>
> 1840 -27 =A02.9 =A0 0.503890 = =A00 G3XBM JO02 0
>
>
>
> SM6BHZ was an= audible signal which would have been weak but copy-able CW - I expect Gus= 's signal will pick up by 10dB or so as the night progresses. G3XBM is= never audible at all - the QRN is building rapidly now, but during the da= y I get 100% copy at about -25 or -26dB; when noise levels build up I some= times get correct copy at -30dB or so. So that's what it looks like wh= en it is working ;-)
>
>
>
> It makes= no detectable difference whether I use the SSB filter or 250Hz CW filter= on the IC718 - even the local signals on 500k are not really strong enoug= h to overload the audio, provided the RF gain is backed well off so that= the S meter reads about s7 or 8. You do need the narrow filter on 136k of= course.
>
>
>
> Cheers, Jim Moritz>
> 73 de M0BMU
> --001636c5bd00fd0a4f0473cb477d--