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[195.171.43.25]) by mx.google.com with ESMTP id i8si6490608wje.55.2014.01.11.15.08.41 for ; Sat, 11 Jan 2014 15:08:42 -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 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1W279d-0005Im-Uc for rs_out_1@blacksheep.org; Sat, 11 Jan 2014 22:35:45 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1W279d-0005Id-5y for rsgb_lf_group@blacksheep.org; Sat, 11 Jan 2014 22:35:45 +0000 Received: from mout2.freenet.de ([195.4.92.92]) by relay1.thorcom.net with esmtps (UNKNOWN:AES256-GCM-SHA384:256) (Exim 4.77) (envelope-from ) id 1W279a-0005Zw-Oz for rsgb_lf_group@blacksheep.org; Sat, 11 Jan 2014 22:35:44 +0000 Received: from [195.4.92.140] (helo=mjail0.freenet.de) by mout2.freenet.de with esmtpa (ID dl4yhf@freenet.de) (port 25) (Exim 4.80.1 #4) id 1W279a-0003p1-3m for rsgb_lf_group@blacksheep.org; Sat, 11 Jan 2014 23:35:42 +0100 Received: from localhost ([::1]:54798 helo=mjail0.freenet.de) by mjail0.freenet.de with esmtpa (ID dl4yhf@freenet.de) (Exim 4.80.1 #4) id 1W279Z-0003hq-UB for rsgb_lf_group@blacksheep.org; Sat, 11 Jan 2014 23:35:42 +0100 Received: from mx8.freenet.de ([195.4.92.18]:55384) by mjail0.freenet.de with esmtpa (ID dl4yhf@freenet.de) (Exim 4.80.1 #4) id 1W276R-0002OW-Dw for rsgb_lf_group@blacksheep.org; Sat, 11 Jan 2014 23:32:27 +0100 Received: from blfd-4db036f6.pool.mediaways.net ([77.176.54.246]:1595 helo=[192.168.178.21]) by mx8.freenet.de with esmtpsa (ID dl4yhf@freenet.de) (TLSv1:DHE-RSA-CAMELLIA256-SHA:256) (port 465) (Exim 4.80.1 #4) id 1W276R-00035D-5X for rsgb_lf_group@blacksheep.org; Sat, 11 Jan 2014 23:32:27 +0100 Message-ID: <52D1C679.9070506@freenet.de> Date: Sat, 11 Jan 2014 23:32:25 +0100 From: wolf_dl4yhf User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:17.0) Gecko/20130620 Thunderbird/17.0.7 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <35FE4D7949D24153B93AD287570B1AA6@Clemens0811> <52CDB98E.2090806@iup.uni-heidelberg.de> <07DCC8F8EED14FA7A932FF8F90ED27A6@Clemens0811> <52CDD7DE.8080807@iup.uni-heidelberg.de> <34613E4DA8F14D389A2BCF8A04DDF0DA@Clemens0811> <52D1B87C.80005@freenet.de> In-Reply-To: X-Originated-At: 77.176.54.246!1595 X-Spam-Score: -0.1 (/) 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: Hi Clemens, Am 11.01.2014 22:58, schrieb Clemens Paul: > The dipole is a horizontal 90°V, 8-15m high and according to EZNEC it has a spheroidal > pattern with no nulls. Ok... that makes a difference. > The vertical part of the feeder is only about 6m long. So the rainworms will be cosy and warm around the lower parts of the antenna, hi.. > Tomorrow I'll check the impedance of the antenna aagainst ground with both feeder wires > connected > and see if I can match it to 50 Ohm,dependent on the available parts. That would be a good indicator for the ground conductivity. At the local antenna farm, the total resistance (after compensating the reactive part with a series coil) went up from 26 to approx 35 ohms within a few months. During transmit, I simply use the PE (plus possibly the underground cables) as counterpoise. During RX, the PE is disconnected from the antenna's own 'ground' which consists of a few buried wires, to prevent QRM from the mains creeping in. Another remote RX antenna is already planned, most likely it will be a small active loop or a system of crossed loops. [...] Content analysis details: (-0.1 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [195.4.92.92 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (dl4yhf[at]freenet.de) -0.1 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain X-Scan-Signature: f62c7cf8eeb8e5a327b71719e9bffff1 Subject: Re: LF: RE: Clemens on MF!! Content-Type: text/plain; charset=ISO-8859-1; format=flowed 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=0.0 required=5.0 tests=none 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 Hi Clemens, Am 11.01.2014 22:58, schrieb Clemens Paul: > The dipole is a horizontal 90°V, 8-15m high and according to EZNEC it has a spheroidal > pattern with no nulls. Ok... that makes a difference. > The vertical part of the feeder is only about 6m long. So the rainworms will be cosy and warm around the lower parts of the antenna, hi.. > Tomorrow I'll check the impedance of the antenna aagainst ground with both feeder wires > connected > and see if I can match it to 50 Ohm,dependent on the available parts. That would be a good indicator for the ground conductivity. At the local antenna farm, the total resistance (after compensating the reactive part with a series coil) went up from 26 to approx 35 ohms within a few months. During transmit, I simply use the PE (plus possibly the underground cables) as counterpoise. During RX, the PE is disconnected from the antenna's own 'ground' which consists of a few buried wires, to prevent QRM from the mains creeping in. Another remote RX antenna is already planned, most likely it will be a small active loop or a system of crossed loops. Cheers, Wolf. ( where is everyone .. now hearing only " -... .. .- " ? )