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RE: [TowerTalk] Ground radials/elevated radials

To: "'VE6JY Don Moman'" <>,<>
Subject: RE: [TowerTalk] Ground radials/elevated radials
From: "Paul Playford" <>
Date: Mon, 25 Oct 2004 02:22:33 -0000
List-post: <>
Specifically, how are the vertical radiators isolated from the 1/4 wave 75
ohm feeders?  There isn't enough spare 
coax to wind a choke. Buried 3/4 wave
feeders and a coax choke? How many turns is "enough" for 80?   Ferrite
beads? If so what mix and quantity is needed?

On my installation the vertical radiators are not isolated from the 75 ohm
feeders.  The current balun is installed where the feed line from the
transmitter enters the phasing box, which isolates the whole system from

de Paul, W8AEF

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