Return-Path: Received: from rly-dc04.mx.aol.com (rly-dc04.mail.aol.com [172.19.136.33]) by air-dc02.mail.aol.com (v126.13) with ESMTP id MAILINDC024-b1c4b3147bc238; Tue, 22 Dec 2009 17:27:23 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-dc04.mx.aol.com (v125.7) with ESMTP id MAILRELAYINDC048-b1c4b3147bc238; Tue, 22 Dec 2009 17:27:10 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1NNDAw-0007jh-V7 for rs_out_1@blacksheep.org; Tue, 22 Dec 2009 22:25:54 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1NNDAw-0007jY-FA for rsgb_lf_group@blacksheep.org; Tue, 22 Dec 2009 22:25:54 +0000 Received: from n8a.bullet.mail.mud.yahoo.com ([209.191.87.104]) by relay1.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1NNDAv-0000Tk-VI for rsgb_lf_group@blacksheep.org; Tue, 22 Dec 2009 22:25:54 +0000 Received: from [68.142.200.226] by n8.bullet.mail.mud.yahoo.com with NNFMP; 22 Dec 2009 22:25:46 -0000 Received: from [68.142.201.73] by t7.bullet.mud.yahoo.com with NNFMP; 22 Dec 2009 22:25:46 -0000 Received: from [127.0.0.1] by omp425.mail.mud.yahoo.com with NNFMP; 22 Dec 2009 22:25:46 -0000 X-Yahoo-Newman-Id: 827457.71935.bm@omp425.mail.mud.yahoo.com Received: (qmail 85849 invoked from network); 22 Dec 2009 22:25:46 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=btinternet.com; h=Received:X-Yahoo-SMTP:X-YMail-OSG:X-Yahoo-Newman-Property:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=TxkAsp7JgLCVmWyFS/9v0Ualhfur3Is7qK1dWMt+DhuJzeMRcuXDW24+i3qqezrTcnfRbQvGWlcgrNRCdv6s2E4wbaTPHl6mBPk9lN7+xINrV5/3HSZUfmoXPi1AISEa3iJjHD49skOe3jiGPDELHh4f34/cuq8/iTxWuA8cFjo= ; Received: from host86-151-140-44.range86-151.btcentralplus.com (ken.h.wright@86.151.140.44 with login) by smtp138.mail.mud.yahoo.com with SMTP; 22 Dec 2009 14:25:46 -0800 PST X-Yahoo-SMTP: 9Y6mUHuswBAgnrOsukIiNdFDf95uy_Dz34nY1hlg2liKgYD952sjbg-- X-YMail-OSG: zmKXDZQVM1ksrboe7SnB88ti7G7GRHdbSqjEgHtwzuWL8OBM80vDbh27AzriU94239C5UFjkHLJ8uv692_oieYQLO7DAUDsTarEJ.oNR0JLfCmtSq.cyEfwA0cLVKQ5bk47PK_st5D4ZuIu545Rdc7JwRpcUDTig4WHq_Ts5oof2MSru4aoTQaUVjJmys2oOyTG77AmlSbzoBIhVtrmkHHXeyfOFWIdtIiOrjS_e8_VcAWF6rODGYpHwCDKR5lthDc_Ti2RAwW45AGAf3r4qtvcLGyO5rPoat6sN.1zwCurm2gx.zI.fqWvM.BSADyaN5hpZ_96wR7csl7529UzhHkk9hREoz6WXUlYPhLD_fxywN4GOtrpt7xyNfg-- X-Yahoo-Newman-Property: ymail-3 Message-ID: <41AD0F546A9449DBA4357932408AFEF3@lindavideo> From: "Ken" To: References: <678FAD4478574A8682D9BDE7D982EE11@lindavideo> <1f0624b90912220213l299aa2ebvd9a91a3fbd3b0983@mail.gmail.com> Date: Tue, 22 Dec 2009 22:25:44 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5843 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 DomainKey-Status: good (testing) Subject: Re: LF: PA0RDT Mini-Whip Content-Type: multipart/alternative; boundary="----=_NextPart_000_0063_01CA8355.B3933BB0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.4 required=5.0 tests=FORGED_MUA_OUTLOOK,HTML_30_40, HTML_MESSAGE 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-IP: 193.82.116.20 ------=_NextPart_000_0063_01CA8355.B3933BB0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hi Gary and Roelof. Thankyou for your very useful comments regarding the positioning of th= e PA0RDT Mini-Whip, I am fortunate that the radio room is remote from= the house and has a separate eathing system. If I increase my 500kHz= ERP to 1W, will I still be ok, or will protection diodes be required= on the input FET gate? 73 Ken M0KHW ----- Original Message -----=20 From: Gary - G4WGT=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Tuesday, December 22, 2009 10:13 AM Subject: Re: LF: PA0RDT Mini-Whip Hi Ken, I have my Mini-Whip mounted with a short length of PVC tube on an1.5= metre aluminium stand off arm attached to my main steel (100mm square= ) mast at about 9 metres high. The coax runs down the mast & about 25= metres into the house. The coax braid is grounded at the base of the= mast were it enters the garage. I use that for my grabbers (off at th= e moment due to technical reasons) & it operates quite well. 73 Gary - G4WGT. 2009/12/21 Ken Hello All. I have been reading the recent posting regarding the PA0RDT Mini-W= hip earthing etc, and am becoming rather confused. I am hoping to con= struct a Mini-Whip over the Christmas break, but have issues regarding= the positioning of it, the original drawings show it on a non metalli= c mast, if I mount it high it will be within 2m vertical separation an= d a 3m horizontal separation of the top horizontal section of the ante= nna, the other option would be to mount it 1m above ground which will= give a 8m vertical separation and a 4m horizontal separation. Just to= add further problems if elevated vertically it is very close to veget= ation, and at the 1m position it will be close to the neighbour=92s ch= ain link fence. The Mini-Whip will be connected to the shack with appr= oximately 25m of 50 ohm coax. Your comments will be gratefully receive= d. 73s Ken M0KHW ------=_NextPart_000_0063_01CA8355.B3933BB0 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
Hi Gary and Roelof.
Thankyou for your very useful comment= s regarding=20 the positioning of the PA0RDT Mini-Whip, I am fortunate that the radio= room is=20 remote from the house and has a separate eathing system. If I increase= my 500kHz=20 ERP to 1W, will I still be ok, or will protection diodes be required= on the=20 input FET gate?
 
73
Ken
M0KHW
----- Original Message -----
Sent: Tuesday, December 22,= 2009 10:13=20 AM
Subject: Re: LF: PA0RDT Mini-= Whip

Hi Ken,

I have my Mini-Whip mounted with a short length of PVC tube on= an1.5=20 metre aluminium stand off arm attached to my main steel (100mm squar= e) mast at=20 about 9 metres high. The coax runs down the mast & about 25 metr= es into=20 the house. The coax braid is grounded at the base of the mast were= it enters=20 the garage. I use that for my grabbers (off at the moment due to tec= hnical=20 reasons) & it operates quite well.

73

Gary - G4WGT.


2009/12/21 Ken <ken.h.wright@btinternet.c= om>

Hello All.

I have been reading= the recent posting regarding the=20 PA0RDT Mini-Whip earthing etc, and am becoming rather confused. =20 I am hoping to construct a Mini-Whip over the Christmas bre= ak, but=20 have issues regarding the positioning of it, the original drawings= show it=20 on a non metallic mast, if I mount it high it will be within 2m ve= rtical=20 separation and a 3m horizontal separation of the top horizontal se= ction of=20 the antenna, the other option would be to mount it 1m above ground= which=20 will give a 8m vertical separation and a 4m horizontal separation.= Just to=20 add further problems if elevated vertically it is very close to ve= getation,=20 and at the 1m position it will be close to the neighbour=92s chain= link fence.=20 The Mini-Whip will be connected to the shack with approximately 25= m of 50=20 ohm coax. Your comments will be gratefully received.=

 =

73s

Ken

M0KHW<= /P>

 


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