Return-Path: X-Spam-DCC: paranoid 1170; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: * X-Spam-Status: No, score=1.7 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, FORGED_MUA_OUTLOOK,HTML_MESSAGE autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id t7EM5cvc013190 for ; Sat, 15 Aug 2015 00:05:38 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ZQN37-0004nl-QT for rs_out_1@blacksheep.org; Fri, 14 Aug 2015 23:02:05 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ZQN37-0004nc-HU for rsgb_lf_group@blacksheep.org; Fri, 14 Aug 2015 23:02:05 +0100 Received: from rgout06.bt.lon5.cpcloud.co.uk ([65.20.0.183]) by relay1.thorcom.net with esmtp (Exim 4.86) (envelope-from ) id 1ZQN22-0002ON-KX for rsgb_lf_group@blacksheep.org; Fri, 14 Aug 2015 23:02:04 +0100 X-OWM-Source-IP: 86.173.50.79 (GB) X-OWM-Env-Sender: alan.melia@btinternet.com X-CTCH-RefID: str=0001.0A090203.55CE650C.0028,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0 X-Junkmail-Premium-Raw: score=13/50,refid=2.7.2:2015.7.31.105415:17:13.296,ip=86.173.50.79,rules=__HAS_MSGID, __SANE_MSGID, MSGID_32HEX_LC, INVALID_MSGID_NO_FQDN, __MSGID_32HEX, __HAS_FROM, __PHISH_FROM2, __FRAUD_WEBMAIL_FROM, __TO_MALFORMED_2, __TO_NO_NAME, __REFERENCES, __BOUNCE_CHALLENGE_SUBJ, __BOUNCE_NDR_SUBJ_EXEMPT, __SUBJ_ALPHA_END, __MIME_VERSION, __CT, __CTYPE_MULTIPART_ALT, __CTYPE_HAS_BOUNDARY, __CTYPE_MULTIPART, __HAS_X_PRIORITY, __HAS_MSMAIL_PRI, __HAS_X_MAILER, USER_AGENT_OE, __OUTLOOK_MUA_1, __USER_AGENT_MS_GENERIC, __ANY_URI, __FRAUD_BODY_WEBMAIL, __URI_NO_WWW, __URI_NO_PATH, __SUBJ_ALPHA_NEGATE, SUPERLONG_LINE, __HAS_HTML, HTML_NO_HTTP, BODYTEXTP_SIZE_3000_LESS, BODY_SIZE_3000_3999, BODYTEXTH_SIZE_10000_LESS, __MIME_HTML, __TAG_EXISTS_HTML, RDNS_GENERIC_POOLED, __URI_NS, HTML_50_70, BODY_SIZE_5000_LESS, RDNS_SUSP_GENERIC, __PHISH_FROM, __OUTLOOK_MUA, RDNS_SUSP, __FRAUD_WEBMAIL, FORGED_MUA_OUTLOOK, BODY_SIZE_7000_LESS, REFERENCES, NO_URI_HTTPS X-CTCH-Spam: Unknown Received: from gnat (86.173.50.79) by rgout06.bt.lon5.cpcloud.co.uk (8.6.122.06) (authenticated as alan.melia@btinternet.com) id 55B9007601D2C50C for rsgb_lf_group@blacksheep.org; Fri, 14 Aug 2015 23:00:44 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=btinternet.com; s=btcpcloud; t=1439589658; bh=F+5Ef7mzd5Ej6S4ZKGGMiyBoma04z+JqYNdTkOydvzs=; h=Message-ID:From:To:References:Subject:Date:MIME-Version:X-Mailer; b=WBRdpG2TGq8okCFLNVapmhSqtDQ3DLswOook5U0ijYEs2OoZbK7fENArLJHK7WF4mdfLGpIYFOgYdk6zucHcy0b8Km54+ockORep7npB0sDNxFc2rKiiUQoW3NtKTtThJqWRT2XKIoNf33IWdRa3Ug7NEFwHj1x/V/ucKYnJ7bo= Message-ID: From: "Alan Melia" To: References: <1156BF06E81A40ED928F77349725D23D@gnat> Date: Fri, 14 Aug 2015 23:00:40 +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-Scan-Signature: ead411ce91f9601ce3974c7575797436 Subject: Re: LF: Re: RE: Folded monopole - Food for thought Content-Type: multipart/alternative; boundary="----=_NextPart_000_0045_01D0D6E5.0A8E7EF0" 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-Scanned-By: MIMEDefang 2.56 on 10.1.3.10 Status: O X-Status: X-Keywords: X-UID: 3874 This is a multi-part message in MIME format. ------=_NextPart_000_0045_01D0D6E5.0A8E7EF0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Even better! :-)) Its an age thing Andy ! Alan ----- Original Message -----=20 From: Andy Talbot=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Friday, August 14, 2015 10:38 PM Subject: Re: LF: Re: RE: Folded monopole - Food for thought 6dB more, not 3dB Height squared=20 'jnt On 14 August 2015 at 22:31, Alan Melia = wrote: The problem with a monopole at LF is that the effective height is = only half (approx) the physical height. For an inverted L where the top = length is at least twice the height, the effective height is close to = the physical height .....so 3dB more ERP. It may not matter so much on = 160m (I used a 16foot centre loaded "tank-whip" at one time :-)) ) but = where ------=_NextPart_000_0045_01D0D6E5.0A8E7EF0 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable =EF=BB=BF
Even better! :-))  Its an age = thing Andy=20 !
Alan
----- Original Message -----
From:=20 Andy=20 Talbot
Sent: Friday, August 14, 2015 = 10:38=20 PM
Subject: Re: LF: Re: RE: Folded = monopole=20 - Food for thought

6dB more, not 3dB
Height squared 

'jnt


On 14 August 2015 at 22:31, Alan Melia <alan.melia@btinternet.com> wrote:
The problem with a monopole at LF is that the = effective=20 height is only half (approx) the physical height. For an inverted L = where=20 the top length is at least twice the height, the effective height is = close=20 to the physical height .....so 3dB more ERP. It may not matter so = much on=20 160m (I used a 16foot centre loaded "tank-whip" at one time = :-)) =20 )  but=20 where 
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