Return-Path: Received: from mtain-mg02.r1000.mx.aol.com (mtain-mg02.r1000.mx.aol.com [172.29.96.202]) by air-di02.mail.aol.com (v128.3) with ESMTP id MAILINDI022-eabb4bcde7b224c; Tue, 20 Apr 2010 13:43:14 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-mg02.r1000.mx.aol.com (Internet Inbound) with ESMTP id A2571380000D5; Tue, 20 Apr 2010 13:43:11 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1O4HSj-0008HU-IL for rs_out_1@blacksheep.org; Tue, 20 Apr 2010 18:42:17 +0100 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1O4HSj-0008HK-3f for rsgb_lf_group@blacksheep.org; Tue, 20 Apr 2010 18:42:17 +0100 Received: from out1.ip07ir2.opaltelecom.net ([62.24.128.243]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1O4HSh-0000Fw-K4 for rsgb_lf_group@blacksheep.org; Tue, 20 Apr 2010 18:42:17 +0100 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Aq4IANSDzUtcGOu4/2dsb2JhbACHWogri3txvRqFDwQ X-IronPort-AV: E=Sophos;i="4.52,243,1270422000"; d="scan'208";a="446058272" Received: from unknown (HELO xphd97xgq27nyf) ([92.24.235.184]) by out1.ip07ir2.opaltelecom.net with SMTP; 20 Apr 2010 18:40:06 +0100 Message-ID: <003001cae0b0$820545d0$0401a8c0@xphd97xgq27nyf> From: "mal hamilton" To: References: <681228559-1271689925-cardhu_decombobulator_blackberry.rim.net-1565535176-@bda171.bisx.prod.on.blackberry>,<003b01cadfd7$a44098e0$0401a8c0@xphd97xgq27nyf> Date: Tue, 20 Apr 2010 18:40:02 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: EARTH Content-Type: text/plain; charset="iso-8859-1" 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=0.0 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 x-aol-global-disposition: G x-aol-sid: 3039ac1d60ca4bcde7af29f6 X-AOL-IP: 193.82.116.20 Rik I have not investigated gold v silver but high quality low loss plugs/socket pins are gold plated, if what you say is correct why not silver? mal/g3kev ----- Original Message ----- From: "Rik Strobbe" To: Sent: Monday, April 19, 2010 6:42 PM Subject: RE: LF: EARTH Mal, the conductivity of silver is better than that of copper. But the difference is marginal, the main advantage is that silver will not oxidate as much as copper (metal oxides are rather poor conductors). That is why silver plating makes sense, in particular on very high frequencies (where skin depth is small, but solid silver wire does not (apart from the fact that is will break very easy). However, the conductivity of gold is worse than that of silver and copper, I don't think that there is any good reason to use gold plated antennas (maybe except for vanity). 73, Rik ON7YD ________________________________________ Van: owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.org] namens mal hamilton [g3kevmal@talktalk.net] Verzonden: maandag 19 april 2010 17:47 Aan: rsgb_lf_group@blacksheep.org Onderwerp: Re: LF: EARTH Mike Silver is ideal and better than copper but in California and possibly Texas they prefer GOLD, listen to those big W6 and W5 signals. I think W6AM had a gold plated rhombic around the mid 50's. The heyday of amateur radio before the appliance operator appeared. Nice to hear from you de mal/g3kev ----- Original Message ----- From: "WE0H-Mike" To: Sent: Monday, April 19, 2010 4:15 PM Subject: Re: LF: EARTH > I run 11,100 feet of radials for my HF and 600m antennas. It works great but I have lots of wire and lots of time to put them in the ground...hi hi > > As Mal said, using a good antenna and a few radials will work good. Use a poor antenna and many radials and expect a compromise performance. > > I have been finding that using silver plated Teflon insulated wire for my antennas and any coils, that my antennas seem to radiate well. I think the silver plating has a lower A/C resistance than copper which lowers the wire losses. > > Mike > WE0H > WD2XSH/16 > > > > > > > > Mobile on my BlackBerry >