Return-Path: Received: (qmail 29262 invoked from network); 11 Feb 2002 14:41:05 -0000 Received: from unknown (HELO warrior.services.quay.plus.net) (212.159.14.227) by exhibition.plus.net with SMTP; 11 Feb 2002 14:41:05 -0000 Received: (qmail 24393 invoked from network); 11 Feb 2002 14:40:57 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior.services.quay.plus.net with SMTP; 11 Feb 2002 14:40:57 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 16aHZh-0005dH-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 11 Feb 2002 14:36:57 +0000 Received: from durendal.skynet.be ([195.238.3.128]) by post.thorcom.com with esmtp (Exim 3.33 #2) id 16aHZg-0005dC-00 for rsgb_lf_group@blacksheep.org; Mon, 11 Feb 2002 14:36:56 +0000 Received: from mh70i ([62.4.218.62]) by durendal.skynet.be (8.11.6/8.11.6/Skynet-OUT-2.16) with SMTP id g1BEYIg18134 for ; Mon, 11 Feb 2002 15:34:18 +0100 (MET) (envelope-from ) Message-ID: <000b01c1b309$784749e0$3eda043e@mh70i> From: "DE BONDT WERNER" To: rsgb_lf_group@blacksheep.org References: <001a01c19a31$655db6c0$466152d5@it> Subject: LF: Re: Vertical grounded tower for LF antenna. Date: Mon, 11 Feb 2002 15:36:18 +0100 MIME-Version: 1.0 Content-Type: text/html; charset=windows-1252 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Content-transfer-encoding: 8bit
Hello Giulio and other LW fers , just idea
 
Bring 4 good ceramic insulators on top of the mast and make a cage of abt 1mx1m and 5-6 meters high
on the insulators . And from there come down with the slooper in the shack , with 80 meter wire and this top-cap
the coil will be abt 2 - 3 mH . Look on the pictures gallery of Dave G6YXM to see my antenna 24 meter high.
My top-cap is abt 500 pf the cage is 2 meter diameter and 13 meter high , the shack is 24 meter from the mast.
I have 5-5-9 from IK5ZPV with 150 Watts.
 
success from Werner ON6ND
 
 
 
----- Original Message -----
Sent: Friday, January 11, 2002 12:49 AM
Subject: LF: Vertical grounded tower for LF antenna.

Hi to all,
saturday i have tested the our contest station in Mantova city in LF, and qso with G in aural CW seems not a problem with a 80 meters long vertical wire, slooping from the top of the tower, with 150 watts.
But wich may be the best sistem on this tower for LF, is possible to feed directly it, may be at the top?
The tower is exatly 80 meters long, with a base of 8x8 meters, and at 70 meters is 1x1 meters, and at 80 meters is 0.5x0.5 meters, so big antenna with big capacitance to ground, i think is a smaller version of Decca insulated tower, but this one is grounded.
Any idea??
 
73 to all de Giulio IK2DED.