[TowerTalk] Tuners

[Jim W7RY]

Now this is cool!

http://fermi.la.asu.edu/w9cf/tuner/tuner.html

73
Jim W7RY


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From: "Dan Hearn" <n5ardxcc at gmail.com>
Sent: Saturday, November 27, 2010 5:52 PM
To: <TowerTalk at contesting.com>
Subject: [TowerTalk] Tuners

> ARRL tested and reported the results for a number of available tuners. 
> They
> tested them 160-10meters with various loads. I remember that all were very
> inefficient with low impedance loads on the low bands. I believe the tests
> were reported in QST in 1995.
>  The 43 foot verticals being sold by a number of companies have very low 
> Ra
> on the low bands and would tax the capabilities of the best tuners
> available. These antennas are too long for the bands above 20m and are 
> cloud
> warmers.
>  If you are interested in a really serious analysis of these antennas you
> can see the work done by VK1OD here.
> http://www.vk1od.net/antenna/multibandunloadedvertical/index.htm
>
> 73, Dan, N5AR
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