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VK Amateur Radio forum -> HF -> 160m vertical loading coil?
Post Info TOPIC: 160m vertical loading coil?
vk3jma


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160m vertical loading coil?
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Hello,


I am being inspired by an article about using a 27MHz station master antenna on 40 &/or 80m by replacing the loading coil with a suitable one for the longer wavelength's. 


see http://www.qslnet.de/member/ddrc/master.html


This article calls for a 50mm dia coil of 2mm wire.  The coils is tapped at 22 turns for 40m or 40 turns for 80m.  I would like to extrapolate this out to make the thing useful on 160m, even if it is just a spot freq, say 1843KHz. 


Now, I dont have 2mm wire, I have 1mm wire,  50mm pipe is no problem and I want to shift it down to 160m.  Any advice on the possible number of turns required under my circumstances?


Any help appreciated.


Regards


Mark


 


 


 


 



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Bob VK3ZL


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Hi Mark,
You can probably try doubling the amount of turns for 160 meters however the antenna will be very inefficient being bottom loaded and so short.You will also need a few ground radials.If you don't have a lot of room try a few radials any length.If you email me I can give you some better details..
Kind Regards....Bob VK3ZL..

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vk3jma


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Hi Bob,

cant find an email link to you??

I would be very interested in ANY 160m antenna design that you know of that would fit into a "normal" surburban back yard, that also pleases the xyl hi hi.

I love the american designs, "160m antenna for limited space", just attach 3428 ft of wire to your 300 ft tower

Again, any help appreciated.

Mark


-- Edited by vk3jma at 08:59, 2006-11-07

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Bob VK3ZL


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Hi again Mark.
E-mail vk3zl@bigpond.com I can give you a few ideas.Need to know how much room you have for radials.
Regards Bob..

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