Return-Path: Received: (qmail 405 invoked from network); 21 May 2000 18:09:48 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by bells.core.plus.net.uk with SMTP; 21 May 2000 18:09:48 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.02 #1) id 12tZlz-0007Cq-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 21 May 2000 18:44:19 +0100 Received: from mailhost.netscapeonline.co.uk ([194.200.20.13]) by post.thorcom.com with esmtp (Exim 3.02 #1) id 12tZly-0007Cl-00 for rsgb_lf_group@blacksheep.org; Sun, 21 May 2000 18:44:18 +0100 X-Priority: 3 X-MSMail-Priority: Normal Received: from [195.44.215.149] (helo=netscapeonline.co.uk) by mailhost.netscapeonline.co.uk with esmtp (Exim 3.02 #1) id 12tZlx-0006sk-00 for rsgb_lf_group@blacksheep.org; Sun, 21 May 2000 17:44:17 +0000 Message-ID: <39281180.2F1273D6@netscapeonline.co.uk> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Date: Sun, 21 May 2000 16:40:33 +0000 From: "g3kev" Organization: Netscape Online member X-Mailer: Mozilla 4.6 [en-gb]C-CCK-MCD NetscapeOnline.co.uk (Win95; I) X-Accept-Language: en-GB,en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org Subject: Re: LF: Re. Decca Mast (G3KEV) References: <000201bfc30b$a97c1080$732a893e@lvm> Content-Type: text/html; charset=windows-1252 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Content-transfer-encoding: 8bit  

LAWRENCE MAYHEAD wrote:

 Sorry Mal,I cant agree that the small ant "is but a long wire etc

How would you describe a long wire???
I  would say a long wire antenna that amateurs use is a random piece of wire, that is longer than the down lead.
All horizontal long wires must have a down lead to get to the tx and the down lead could easily be 9 metres and 50 metres horizontal. I suppose one could say that any long wire was really an inverted L even if the vertical portion was only 2 metres.
If I had a 50 metre horizontal wire and a drop lead to the shack 9 metes, I would call it a long wire.
Where does one draw the line???????.  I would like to have your observations.
When I refer to an inv L it means that the vertical portion is greater than the horizontal.
G3KEV
 
 
 
 
 
 
 
 
 

" if this is meant to imply that it is anything other than a short 9m high vertical with top loading,which will have the same omni-directional vert. polarised radiation pattern as the larger ant.The Top load does not produce horiz.polarisation at this frequency. This does not mean that I am entirely happy with the results I would have expected the same sig strength, however I await the full set of reports from different directions and distances.73s Laurie.