[BC] 50 Ohms vs. 71 Ohms (AM Antenna Tuning)

Dana Puopolo dpuopolo at usa.net
Tue Feb 2 10:20:01 CST 2010


Scott,

That isn't a stupid question-it's a good one. The answer is that it really
doesn't matter. As long as the match is good and the bandwidth okay then what
you are doing is making a dollar up by 4 quarters or ten dimes. It's still a
dollar.

-D

----- Original Message -----
From: "Scott Bailey" <wmroradio at bellsouth.net>

I have rather a stupid question to ask and I hope to get a simple answer. Is
it best when tuning a tower that has a unipole on it to 50 ohms or 70 ohms? 
My unipole is tuned to 70 ohms and I wondering if I would get better
efficiency if it was tuned to 50 ohms on the antenna side of the ATU.

Thanks,
     Scott



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