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[TowerTalk] 50:75 ohm transformation

To: <towertalk@contesting.com>
Subject: [TowerTalk] 50:75 ohm transformation
From: k1zat@dsport.com (JD Delancy)
Date: Wed, 10 Feb 1999 21:18:08 -0500 (EST)

> Local contester KM1H runs 75ohm CATV to all of his HF, VHF
> and UHF antennas without UNUNs and says the impedence bump
> over several hundred foot runs are unnoticable, especially
> since the loss in such cable is so low.

I use 3/4 inch CATV and a run of about 180 feet to my
tri-bander.  The worst case I have is 2.2 to 1 on 15 cw.  I 
look at it as 2-2.5 to 1 is negligable on HF, whats it
going to do, reduce your delivered to the antenna power a couple
of watts?  The other end will never know..

   jd


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