Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-ma03.r1000.mx.aol.com (Internet Inbound) with ESMTP id 7F73F38000087; Sun, 12 Aug 2012 09:20:45 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1T0Y4E-0006fm-3X for rs_out_1@blacksheep.org; Sun, 12 Aug 2012 14:18:54 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1T0Y4D-0006fd-FJ for rsgb_lf_group@blacksheep.org; Sun, 12 Aug 2012 14:18:53 +0100 Received: from mta41.charter.net ([216.33.127.83]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1T0Y4B-0001XN-1N for rsgb_lf_group@blacksheep.org; Sun, 12 Aug 2012 14:18:52 +0100 Received: from imp09 ([10.20.200.9]) by mta41.charter.net (InterMail vM.8.01.05.02 201-2260-151-103-20110920) with ESMTP id <20120812131848.PPFS10143.mta41.charter.net@imp09> for ; Sun, 12 Aug 2012 09:18:48 -0400 Received: from [192.168.2.103] ([74.209.41.252]) by imp09 with smtp.charter.net id lpJn1j0075SS6P605pJorK; Sun, 12 Aug 2012 09:18:48 -0400 X-Authority-Analysis: v=1.1 cv=de4lG9b5LBLbdPP1mBfs3/eRZB7j2kpYfCvmEe8raAk= c=1 sm=1 a=yUnIBFQkZM0A:10 a=hKjuaRERsFdDL8E0HIqNBA==:17 a=pSDxxfrZAAAA:8 a=hOpmn2quAAAA:8 a=F3M5lZpKAAAA:8 a=jiWxajf92d2_cOJDkQ8A:9 a=CjuIK1q_8ugA:10 a=hUswqBWy9Q8A:10 a=wk6s2zzMB60A:10 a=QEXdDO2ut3YA:10 a=_W_S_7VecoQA:10 a=hKjuaRERsFdDL8E0HIqNBA==:117 X-Auth-id: dzF0YWdAY2hhcnRlci5uZXQ= References: <32bf3d97.26cc79.1391abf9386.Webtop.48@charter.net> From: John Andrews X-Mailer: iPhone Mail (8E501) In-Reply-To: Message-Id: <8DBE0BFA-B8ED-407C-9EA6-20F4175A87C5@charter.net> Date: Sun, 12 Aug 2012 09:18:44 -0400 To: "rsgb_lf_group@blacksheep.org" Mime-Version: 1.0 (iPhone Mail 8E501) 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: Stephan, -35 @ 0213 -36 @ 0245 Yes, just an unterminated wire. There is a ground stake at the near end, and I use a hi-z input preamp to drive a Cat5 cable back to the shack. This is all well out in the woods to avoid a rather noisy power line near the house. [...] Content analysis details: (-0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [216.33.127.83 listed in list.dnswl.org] -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -0.0 SPF_PASS SPF: sender matches SPF record 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 MIME_QP_LONG_LINE RAW: Quoted-printable line longer than 76 chars X-Scan-Signature: 118b9e608370528226a3c3b3aedcdda0 Subject: Re: LF: Op32 tonight on 137kHz Content-Type: multipart/alternative; boundary=Apple-Mail-23--749377514 Content-Transfer-Encoding: 7bit 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, 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 x-aol-global-disposition: G x-aol-sid: 3039ac1d600b5027adac364d X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none --Apple-Mail-23--749377514 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Stephan, -35 @ 0213 -36 @ 0245 Yes, just an unterminated wire. There is a ground stake at the near end, and= I use a hi-z input preamp to drive a Cat5 cable back to the shack. This is a= ll well out in the woods to avoid a rather noisy power line near the house.=20= It works very well at MF and LF. An elevated wire picks up more signal, but d= oes not improve the SNR. It also causes intermodulation products with NAA on= 24 kHz.=20 John, W1TAG On Aug 12, 2012, at 8:31 AM, "Graham" wrote: > John, > =20 > Do you have the s/n levels ? > =20 > 150 mtr wire on the ground ..... actually on the ground , far end o= pen cct ? > =20 > Tnx -G. >=20 > From: w1tag@charter.net > Sent: Sunday, August 12, 2012 1:12 PM > To: rsgb_lf_group@blacksheep.org > Subject: Re: LF: Op32 tonight on 137kHz >=20 > =20 > Stephan, >=20 > It was quite noisy here last night, with storms along the eastern U.S. In a= ddition to the W1TAG and W1VD decodes at 0213Z, we both had decodes on the n= ext cycle at 0245, and Jay had one at 0318Z. His K9AY antenna has some advan= tage by rejecting noise from the west. My rx antenna here in Maine is just a= 150 meter wire on the ground. >=20 > John W1TAG/1 FN43sv --Apple-Mail-23--749377514 Content-Transfer-Encoding: 7bit Content-Type: text/html; charset=utf-8
Stephan,

-35 @ 0213
-36 @ 0245

Yes, just an unterminated wire. There is a ground stake at the near end, and I use a hi-z input preamp to drive a Cat5 cable back to the shack. This is all well out in the woods to avoid a rather noisy power line near the house. 

It works very well at MF and LF. An elevated wire picks up more signal, but does not improve the SNR. It also causes intermodulation products with NAA on 24 kHz. 

John, W1TAG


On Aug 12, 2012, at 8:31 AM, "Graham" <g8fzk@g8fzk.fsnet.co.uk> wrote:

John,
 
Do you have the  s/n  levels  ?
 
150 mtr  wire on the  ground .....  actually  on the  ground , far  end  open cct ?
 
Tnx -G.

Sent: Sunday, August 12, 2012 1:12 PM
Subject: Re: LF: Op32 tonight on 137kHz

 
Stephan,
It was quite noisy here last night, with storms along the eastern U.S. In addition to the W1TAG and W1VD decodes at 0213Z, we both had decodes on the next cycle at 0245, and Jay had one at 0318Z. His K9AY antenna has some advantage by rejecting noise from the west. My rx antenna here in Maine is just a 150 meter wire on the ground.
John W1TAG/1 FN43sv
--Apple-Mail-23--749377514--