[TowerTalk] 75ohm cable

john at kk9a.com john at kk9a.com
Mon Jul 19 14:00:22 PDT 2010


The Array Solutions AS-75:50-1 should match the impedance of your CATV cable 
to the rest of your antenna system.
http://www.arraysolutions.com/Products/baluns.htm#50:75%20ohm%20Xfrm

John KK9A




Subject: [TowerTalk] 75ohm cable
From: "Carol Richards" <
Date: Mon, 19 Jul 2010 10:47:32 -0500

I am the proud recipent of numerous rolls of 75 ohm, 1/2 in CATV cable. 
Since
all of my antennas require 250ft or mor runs this is a real blessing. I have 
a
few questions before I start replacing the RG 213.

1. All of my yagis are 50 ohm, fed through rf chokes to the feed point. Can 
I
just connect the 75 ohm and not worry about the small mismatch or do I need 
to
use some type of matching network?

2. Are there commercial matching networks to do the job I want that will 
handle
1.5kw?

3. I have several articles that allow me to make PL-259's to fit this coax. 
Is
there an easier way?



thanks, Carol 



More information about the TowerTalk mailing list