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[129.206.22.206]) by mx.google.com with ESMTPSA id bx2sm9773633wjb.47.2014.06.25.14.05.58 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 25 Jun 2014 14:05:58 -0700 (PDT) From: DK7FC <73dk7fc@googlemail.com> X-Google-Original-From: DK7FC <73dk7fc@gmail.com> Message-ID: <53AB39B5.4090109@gmail.com> Date: Wed, 25 Jun 2014 23:05:57 +0200 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: <53A8AE53.3060504@gmail.com> <8D15DB1FF8A27AE-2018-717F@webmail-d249.sysops.aol.com> In-Reply-To: X-Spam-Score: -0.7 (/) 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: For mechanical and HV reasons i would prefer the normal configuration. I depend on the place you have. If you have a shed near the antenna feed point, i would simple wind 0.4 or 0.5 mm diameter enamel. cu wire on a coil which has 0.6m or better 0.8m diameter. That will always work well :-) [...] Content analysis details: (-0.7 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [209.85.212.175 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (73dk7fc[at]googlemail.com) -0.0 SPF_PASS SPF: sender matches SPF record 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: e09cca6d8e44a91eadbdfb3e1b8aec09 Subject: Re: LF: VLF in Canada Content-Type: text/plain; charset=ISO-8859-1; format=flowed 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=0.3 required=5.0 tests=FROM_HAS_MIXED_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 For mechanical and HV reasons i would prefer the normal configuration. I depend on the place you have. If you have a shed near the antenna feed point, i would simple wind 0.4 or 0.5 mm diameter enamel. cu wire on a coil which has 0.6m or better 0.8m diameter. That will always work well :-) 73, Stefan Am 25.06.2014 18:30, schrieb jcraig@mun.ca: > Hi Markus, Warren, Stefan, > > Thanks for the encouragement. My quest for thousands of metres of wire > has begun. Stefan's monster coil and Markus' coaxial buckets make me > envious. Would it be a good idea to pie wind the wire? G3NYK did > some work with pies on LF and got more inductance for a given amount of > wire than a solenoid. Perhaps there will be too much shunt capacitance > with 3 or 4 pies. > > In the mean time, it may be best to follow up on the loop idea. The far > end of the 100m wire can be grounded to make it a loop. How much > series capacitance will be needed and how does one excite it? An xfmr? > > 73 > > Joe VO1NA >