Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by klubnl.pl (8.14.4/8.14.4/Debian-8+deb8u2) with ESMTP id w0OMMBLa002073 for ; Wed, 24 Jan 2018 23:22:12 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1eeTM0-0001AL-KG for rs_out_1@blacksheep.org; Wed, 24 Jan 2018 22:17:12 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1eeTM0-0001AC-7i for rsgb_lf_group@blacksheep.org; Wed, 24 Jan 2018 22:17:12 +0000 Received: from mout01.posteo.de ([185.67.36.65]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1eeTLu-0007B8-Du for rsgb_lf_group@blacksheep.org; Wed, 24 Jan 2018 22:17:10 +0000 Received: from submission (posteo.de [89.146.220.130]) by mout01.posteo.de (Postfix) with ESMTPS id 937CB20EF6 for ; Wed, 24 Jan 2018 23:17:04 +0100 (CET) X-DKIM-Result: Domain=posteo.de Result=Signature OK DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.de; s=2017; t=1516832224; bh=bOtGw6HrckUoL4+MF21oZvpgLnV2y6ybIxHLVcXP3vw=; h=Date:From:To:Subject:From; b=UyTnQHWKAENvvwolMCDsLB5Zx6nJm5HbVW86qmpXWVb5AcXN/TzKdaRcCnejuUCX8 wAtESKe/C+yk5vqYdFrlWLjfpNnlAVcFS0mmPiD2UZG0nmiI38+2ZoiTMpt8j9Ux7R SB66lUuA+ToXAr+XhIeXpidXCYmncDRjoCigoR1i8TBc29gfEzmOFUya/WdF1+S4rE cQJNdRGQN9CF3fmeJo4QdLrb+1O7LLczJQiy44P20DbNp2EAp4CM1LJM6DEZVT36Ng FEiAivTQsw1I30MFoYEeeCFzxEzswCbfPbntd9l9bg+fZO9xPbMsSk21MXK+WwCb34 jYwJTAsgnJjGg== Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 3zRffS0f89z9rxD for ; Wed, 24 Jan 2018 23:17:04 +0100 (CET) Message-ID: <5A6905DF.5010707@posteo.de> Date: Wed, 24 Jan 2018 23:17:03 +0100 From: DK7FC User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <1612a38da75-1721-129c52@webjas-vab140.srv.aolmail.net> In-Reply-To: <1612a38da75-1721-129c52@webjas-vab140.srv.aolmail.net> X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Oh, indeed. Embrassing ;-) Usually i know how a loop radiates :-) Tnx. 73, Stefan Am 24.01.2018 23:10, schrieb Markus Vester: > >> (Unfortunately the directivity of that earth antenna is almost > orthogonal to the RX sites of Paul, DL0AO and DK7FC :-/ > > No, an earth antenna radiates in the direction of the wire, > approximately east-west... > > 73, Markus > > -----Ursprüngliche Mitteilung----- > Von: DK7FC > An: rsgb_lf_group > Verschickt: Mi, 24. Jan 2018 19:27 > Betreff: Re: LF: RE: 136kHz WSPR experiment > > > > Am 24.01.2018 15:00, schrieb Roger Lapthorn: > > To get best results I think you need LOW conductivity around the > > earth-electrode "antenna", so the signal spread (and hence effective > > loop area) is greatest. Placing near a river is likely to give poor > > results in my experience. > I agree. > > Best would be a stony mountain sourrounded by a small lake rivulet. For > example like here: > http://k7fry.com/grid/?qth=JN49AK54QN&from=JN49AK64OK > !!!! > (Unfortunately the directivity of that earth antenna is almost > orthogonal to the RX sites of Paul, DL0AO and DK7FC :-/ > Ah and BTW it would be good to have a good Restaurant near that > location, just to spend a few hours there while transmitting. > Sharing some of my thoughts... :-) > > 73, Stefan > [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 34d483c57c7a6bf26c25db3c8765d5fc Subject: Re: LF: RE: 136kHz WSPR experiment Content-Type: multipart/alternative; boundary="------------070202000805030600020201" 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 This is a multi-part message in MIME format. --------------070202000805030600020201 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Oh, indeed. Embrassing ;-) Usually i know how a loop radiates :-) Tnx. 73, Stefan Am 24.01.2018 23:10, schrieb Markus Vester: > >> (Unfortunately the directivity of that earth antenna is almost > orthogonal to the RX sites of Paul, DL0AO and DK7FC :-/ > > No, an earth antenna radiates in the direction of the wire, > approximately east-west... > > 73, Markus > > -----Ursprüngliche Mitteilung----- > Von: DK7FC > An: rsgb_lf_group > Verschickt: Mi, 24. Jan 2018 19:27 > Betreff: Re: LF: RE: 136kHz WSPR experiment > > > > Am 24.01.2018 15:00, schrieb Roger Lapthorn: > > To get best results I think you need LOW conductivity around the > > earth-electrode "antenna", so the signal spread (and hence effective > > loop area) is greatest. Placing near a river is likely to give poor > > results in my experience. > I agree. > > Best would be a stony mountain sourrounded by a small lake rivulet. For > example like here: > http://k7fry.com/grid/?qth=JN49AK54QN&from=JN49AK64OK > !!!! > (Unfortunately the directivity of that earth antenna is almost > orthogonal to the RX sites of Paul, DL0AO and DK7FC :-/ > Ah and BTW it would be good to have a good Restaurant near that > location, just to spend a few hours there while transmitting. > Sharing some of my thoughts... :-) > > 73, Stefan > --------------070202000805030600020201 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit Oh, indeed. Embrassing ;-) Usually i know how a loop radiates :-)
Tnx.
73, Stefan

Am 24.01.2018 23:10, schrieb Markus Vester:
>> (Unfortunately the directivity of that earth antenna is almost orthogonal to the RX sites of Paul, DL0AO and DK7FC :-/

No, an earth antenna radiates in the direction of the wire, approximately east-west...

73, Markus

-----Ursprüngliche Mitteilung-----
Von: DK7FC <selberdenken@posteo.de>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: Mi, 24. Jan 2018 19:27
Betreff: Re: LF: RE: 136kHz WSPR experiment



Am 24.01.2018 15:00, schrieb Roger Lapthorn:
> To get best results I think you need LOW conductivity around the
> earth-electrode "antenna", so the signal spread (and hence effective
> loop area) is greatest. Placing near a river is likely to give poor
> results in my experience.
I agree.

Best would be a stony mountain sourrounded by a small lake rivulet. For
example like here:
http://k7fry.com/grid/?qth=JN49AK54QN&from=JN49AK64OK !!!!
(Unfortunately the directivity of that earth antenna is almost
orthogonal to the RX sites of Paul, DL0AO and DK7FC :-/
Ah and BTW it would be good to have a good Restaurant near that
location, just to spend a few hours there while transmitting.
Sharing some of my thoughts... :-)

73, Stefan

--------------070202000805030600020201--