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Re: [TowerTalk] 4 square for 80

To: towertalk@contesting.com
Subject: Re: [TowerTalk] 4 square for 80
From: Jim Brown <jim@audiosystemsgroup.com>
Reply-to: jim@audiosystemsgroup.com
Date: Fri, 27 Jan 2017 19:47:51 -0800
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
On Fri,1/27/2017 6:32 PM, john@kk9a.com wrote:
  The only
commercial product that I am aware of uses 100 #43 beads:
www.dxengineering.com/parts/com-cfc-75

The fact that someone is selling something does not make it a good idea, nor does it change the laws of physics. :)

W2DU's string of beads chokes were a good idea because their impedance was resistive in the frequency range where they would be used. The limitation was (and still is) that the largest bead made with that material (#73) is just large enough to fit coax the size of RG58.

73, Jim K9YC


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