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[195.171.43.25]) by mx.google.com with ESMTP id bo10si14622151wjb.127.2014.02.18.05.50.03 for ; Tue, 18 Feb 2014 05:50:03 -0800 (PST) Received-SPF: neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) client-ip=195.171.43.25; Authentication-Results: mx.google.com; spf=neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) smtp.mail=owner-rsgb_lf_group@blacksheep.org; dkim=pass header.i=@gmail.com; dmarc=pass (p=NONE dis=NONE) header.from=gmail.com Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1WFkoj-0003jA-QD for rs_out_1@blacksheep.org; Tue, 18 Feb 2014 13:34:33 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1WFkoj-0003ix-6w for rsgb_lf_group@blacksheep.org; Tue, 18 Feb 2014 13:34:33 +0000 Received: from mail-qg0-f51.google.com ([209.85.192.51]) by relay1.thorcom.net with esmtps (TLSv1:RC4-SHA:128) (Exim 4.77) (envelope-from ) id 1WFkof-0008Q9-EH for rsgb_lf_group@blacksheep.org; Tue, 18 Feb 2014 13:34:32 +0000 Received: by mail-qg0-f51.google.com with SMTP id q108so6928975qgd.10 for ; Tue, 18 Feb 2014 05:34:27 -0800 (PST) X-DKIM-Result: Domain=gmail.com Result=Good and Known Domain DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=tSN+bGemmeDWJj+uUiMFaacJCkVPqrUuVFQ2Icx921g=; b=NcDHrWdScH6B86iPLXVs+vxFIlDjDBoujsfUaso1z96VdDoWfk950SFeQyxD4WULAm 7HG+Ut2+PlijbKm+AMWDhhUq4YiyGBpoKNLo8eGdvzyTgEduzJgB0mHdqJtSlcngVaX6 A0LNEyCWkaxG3Dz+azigj3wUPjzegRLSAG+4wMnnyM2BzcDAEUFWGqvWswbsXBS2aBgH JaWgnLrf4lI7rus3coVGqfRVdO6S2kn6KKl+e/j5tIcpAjD2+HEy2u3jg4O54CqRJDCP f0ahrEwljiEgB1XeOTxuzVIZDyMEYgVJn7p3qXxtS22P2I1Sg2Jh9tkkzp6mpxdRq/a6 kPeg== MIME-Version: 1.0 X-Received: by 10.140.105.35 with SMTP id b32mr40595976qgf.36.1392730467092; Tue, 18 Feb 2014 05:34:27 -0800 (PST) Received: by 10.229.241.197 with HTTP; Tue, 18 Feb 2014 05:34:27 -0800 (PST) In-Reply-To: <53035CE2.1090801@psk31.plus.com> References: <53035CE2.1090801@psk31.plus.com> Date: Tue, 18 Feb 2014 13:34:27 +0000 Message-ID: From: Roger Lapthorn To: "rsgb_lf_group@blacksheep.org" X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Eddie, I am set at 20% so will set it differently. 73s Roger G3XBM [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (rogerlapthorn[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid 0.0 T_REMOTE_IMAGE Message contains an external image X-Scan-Signature: ebcef237b0394d499a293e835099e25a Subject: Re: LF: WSPR Reports - G3XBM, G3ZJO, G4KPX... Content-Type: multipart/alternative; boundary=001a113940cac252b504f2ae54ed X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.6 required=5.0 tests=HTML_20_30,HTML_MESSAGE, HTML_TAG_EXISTS_TBODY,MAILTO_TO_SPAM_ADDR,TO_ADDRESS_EQ_REAL 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 --001a113940cac252b504f2ae54ed Content-Type: text/plain; charset=ISO-8859-1 Eddie, I am set at 20% so will set it differently. 73s Roger G3XBM On 18 February 2014 13:15, g3zjo wrote: > Dave > That will be an interesting test. I have a couple of similar loops and > they just do not work here due to induced noise from the mains, I have > tried ground level and bottom of the garden test to no avail. As I get away > from one source of noise I start to approach another. > I also have a small 'window sill' loop which I took mobile / portable and > it performs really well, away from home. > > Roger > I will put an RX on and run the Grabber to check if I see you. May I > suggest that you TX at other than the 6 an 8 minute slots. I TX at 06 etc. > and also ruin a little of 08 etc. slots. > > 73 Eddie > > > > On 18/02/2014 12:51, Roger Lapthorn wrote: > > Thanks Dave, > > Your reports have been very useful to me. Going to try an auto-transformer > to see if I can match the earth-electrode "loop" any better later. Added a > series inductor yesterday (about 200uH?) which increased antenna current > about 20% > > 73s > Roger G3XBM > > > On 18 February 2014 12:23, Dave G3WCB. wrote: > >> >> >> Chaps, >> >> I'm aware that you've been using my WSPR reports to gauge the >> effectiveness >> of your various QRP WSPR transmissions. I'm using a 80cm square tuned loop >> at ground level with a fet pre-amp, feeding my trusty ICOM IC-PCR1000. >> I've >> tried to keep the RX set up unchanged, but the loop is inclined to >> "weathercock" around a bit, especially with the storms recently. >> >> Also, my WSPR RX doesn't run 24x7, as I use the PC for other duties. >> >> I went out this morning, and found that the loop is aligned along an axis >> running 60 - 240 deg, which means that stations in the IO92 direction are >> pretty much in the null direction. As an experiment, from 1214 UTC today I >> have aligned the loop antenna in a 165 - 345 deg direction. To remove any >> interaction with the main station "Tee" antenna, which is in the same >> general area, I have disconnected this and moved my WSPR TX on to the >> short >> vertical antenna, which is 30m away from the loop. >> >> I'll swap the loop back to it's 60 - 240 deg orientation later on - I'll >> announce when I've done this. >> >> 73, Dave G3WCB IO91RM >> >> >> > > > -- > http://g3xbm-qrp.blogspot.com/ > http://www.g3xbm.co.uk > https://sites.google.com/site/sub9khz/ > http://qss2.blogspot.com/ > http://www.youtube.com/user/g3xbm > > > > ------------------------------ > > > This email is free from viruses and malware because avast! Antivirusprotection is active. > > > -- http://g3xbm-qrp.blogspot.com/ http://www.g3xbm.co.uk https://sites.google.com/site/sub9khz/ http://qss2.blogspot.com/ http://www.youtube.com/user/g3xbm --001a113940cac252b504f2ae54ed Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Eddie,

I am set at 20% so will set it differen= tly.

73s
Roger=A0 G3XBM


On 18 February 20= 14 13:15, g3zjo <g3zjo@psk31.plus.com> wrote:
=20 =20 =20
Dave
That will be an interesting test. I have a couple of similar loops and they just do not work here due to induced noise from the mains, I have tried ground level and bottom of the garden test to no avail. As I get away from one source of noise I start to approach another.
I also have a small 'window sill' loop which I took mobile / portable and it performs really well, away from home.

Roger
I will put an RX on and run the Grabber to check if I see you. May I suggest that you TX at other than the 6 an 8 minute slots. I TX at 06 etc. and also ruin a little of 08 etc. slots.

73 Eddie



On 18/02/2014 12:51, Roger Lapthorn wrote:
Thanks Dave,

Your reports have been very useful to me. Going to try an auto-transformer to see if I can match the earth-electrode "loop" any better later. Added a series inductor yester= day (about 200uH?) which increased antenna current about 20%

73s
Roger G3XBM


On 18 February 2014 12:23, Dave G3WCB. <ganymede444@btopenworld.com> wrote:


Chaps,

I'm aware that you've been using my WSPR reports to gau= ge the effectiveness
of your various QRP WSPR transmissions. I'm using a 80cm square tuned loop
at ground level with a fet pre-amp, feeding my trusty ICOM IC-PCR1000. I've
tried to keep the RX set up unchanged, but the loop is inclined to
"weathercock" around a bit, especially with the storm= s recently.

Also, my WSPR RX doesn't run 24x7, as I use the PC for othe= r duties.

I went out this morning, and found that the loop is aligned along an axis
running 60 - 240 deg, which means that stations in the IO92 direction are
pretty much in the null direction. As an experiment, from 1214 UTC today I
have aligned the loop antenna in a 165 - 345 deg direction. To remove any
interaction with the main station "Tee" antenna, whic= h is in the same
general area, I have disconnected this and moved my WSPR TX on to the short
vertical antenna, which is 30m away from the loop.

I'll swap the loop back to it's 60 - 240 deg orientatio= n later on - I'll
announce when I've done this.

73, Dave G3WCB IO91RM





--


T= his email is free from viruses and malware because avast! Antivirus protection is active.






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