Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-de02.r1000.mx.aol.com (Internet Inbound) with ESMTP id CDD0138000085; Thu, 3 May 2012 06:57:03 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1SPthh-0005Lg-Hi for rs_out_1@blacksheep.org; Thu, 03 May 2012 11:56:09 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1SPthh-0005LX-1x for rsgb_lf_group@blacksheep.org; Thu, 03 May 2012 11:56:09 +0100 Received: from nm11-vm0.bullet.mail.ird.yahoo.com ([77.238.189.218]) by relay1.thorcom.net with smtp (Exim 4.77) (envelope-from ) id 1SPthe-0007Lo-V2 for rsgb_lf_group@blacksheep.org; Thu, 03 May 2012 11:56:07 +0100 Received: from [77.238.189.54] by nm11.bullet.mail.ird.yahoo.com with NNFMP; 03 May 2012 10:56:05 -0000 Received: from [212.82.108.224] by tm7.bullet.mail.ird.yahoo.com with NNFMP; 03 May 2012 10:56:05 -0000 Received: from [127.0.0.1] by omp1001.bt.mail.ird.yahoo.com with NNFMP; 03 May 2012 10:56:05 -0000 X-Yahoo-Newman-Id: 59061.66492.bm@omp1001.bt.mail.ird.yahoo.com Received: (qmail 73607 invoked from network); 3 May 2012 10:56:04 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=btinternet.com; h=DKIM-Signature:X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:Received:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=45UXOTDKZoZXLLYOT0gk4qmeky4ZwvCpMPcaH2fP1DLdADTzSavcriNjTgBvB0BQypA+hwsrIYee2AijOjVurclOrdJSZWxElNAeVeZk1KLUMocQIv2qy2DA3HCVrES0qhXVqK/H6e6NyyavcZx1929NX1HUWDrJGEuYfjshDfI= ; DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=btinternet.com; s=s1024; t=1336042564; bh=Eqr2f/PKBU68OnvDfTjHoAnOdjeJYyJ+ziKgWltDkDU=; h=X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:Received:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=SPQOAv3NvG75qBpcA9n1NS2sKP6udy8P2D/qyRMSi6ExQjC0Tqy4QH73wyNXEcNMiPfsEkuK0KV5E+xVWcBlcwXC6DxLHOpTJWqPz+HwC/7DpyZ5x/EdEmEbgZrA3D3AuGZT0METRdTdU4g3AggvOdFfEccXy4Pa+52rLozr0zM= X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: qW2M8E8VM1kC0FAn4HiMAG8wj6N.qDlc.YMezjQU2rWMMYK xvsjQJGba9vuY6XFza8qOjHI12nX2Pon.a9thp5R9yTBEAb0O.JJsn9QbjXQ eLL8ncwiVXrwX4dovbu0PpnJIe21xQUNCNDLZ_lfJoDIb6XuhHo5TvVNLFiB Vhc9L07PNrKwci72FQ7ziIHV.FnsVT8gFgS33dy9C2c98PycYTCjGM.Lysbr M9Xgh9EnstUJ.w3_kieJ7weBPmJtKVf5GFVy9HYKEMPhEUMVIBEKMyhiF49V Ipg93SEIxclGVW9mw4CWZjbnlTicLsdK_zKBMzyG6OIiHHbfhYHcoabVz9mt WBI4NtD8x1APRepUpjWgKVczTQ2ZdPrwKiQ8t8GeljAzf27bwUuqgOSBkVE6 bEMhwLak9rd5qs_BUgWz5RWU5xDvO_zdkFUe7IMT226aGh66YraGBX4AMy0g jR9Lfms0M3wy1heADYQYrASN61PY.Dowwgetg_.KGVqq_IMZI7K.yTWY6bdg TwfLOLf3MQzpEDA-- X-Yahoo-SMTP: .u8e2g.swBByWKjbpA3lR6Fw.2ZEQrJJpVsTSrpXLCffsPaCEMY- Received: from IBM7FFA209F07C (c.ashby435@109.145.183.33 with login) by smtp827.mail.ukl.yahoo.com with SMTP; 03 May 2012 03:56:04 -0700 PDT Message-ID: <00BBB7AE82DD4B7F81890F5346001BD2@IBM7FFA209F07C> From: "Chris" To: References: <4FA04D47.6070701@iup.uni-heidelberg.de> <20120503133335.69981o91xm520hlw@w3mail.netikka.fi> Date: Thu, 3 May 2012 11:52:56 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157 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: Yes, I agree, my IC-703 is utterly hopeless at 136/7kHz. The IC-718 is quite good though. 73, Chris, G4AYT. ----- Original Message ----- From: To: Sent: Thursday, May 03, 2012 11:33 AM Subject: Re: LF: Basic LF understanding [...] 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 [77.238.189.218 listed in list.dnswl.org] 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 1c38f63d01970a2bf149f660c9cb2a37 Subject: Re: LF: Basic LF understanding Content-Type: text/plain; format=flowed; charset="ISO-8859-15"; reply-type=response Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.5 required=5.0 tests=FORGED_MUA_OUTLOOK, FROM_ENDS_IN_NUMS 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-SCORE: 0:2:489134016:93952408 X-AOL-SCOLL-URL_COUNT: 0 X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-d280.2 ; domain : btinternet.com DKIM : pass x-aol-sid: 3039ac1d40ca4fa2647f4f01 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Yes, I agree, my IC-703 is utterly hopeless at 136/7kHz. The IC-718 is quite good though. 73, Chris, G4AYT. ----- Original Message ----- From: To: Sent: Thursday, May 03, 2012 11:33 AM Subject: Re: LF: Basic LF understanding LF Quoting the initial posting by Stefan, regarding reception in South America: "There is no chance for him to get the parts for building a preamp and the IC703 seems to need a very high input signal" I can confirm first hand that the IC-703 is virtually dead down at 137 kHz. My references are the Icom IC-R75, JRC NRD-91 and even the Icom IC-718. Could we compile a list of known & tried suitable receivers for 137kHz ? BR Paul-Henrik, OH1LSQ Quoting Stefan Schäfer : > LF! > > Has someone a very good link to basic understanding about LF? I mean the > LF amateur radio stuff, all which one has to learn when starting rx-wise > in our hobby! Maybe some ideas and examples, a good compliation. Not to > complex and focusing on 137 kHz amateur radio? > For newcomers in the "LF-transmit-world" i recommend ON7YD's page > http://www.strobbe.org/on7yd/136ant/ > Is there maybe something for receive newcomers? > > A collection of some links may help as well... > > Thanks in advance. > > 73, Stefan/DK7FC > >