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Post by M0ZIF on Dec 29, 2008 9:49:32 GMT
During my research over the last couple of weeks, I've come to the conclusion that the many of the problems incurred with reception is due to the fact that the earth or tuned radials are out. I've also noted that a few others have noted this with single ground points in fact there is a whole article in RadCom this month about it. MFJ make a commercial artificial ground tuner, but One of the first projects a amateur could build for themselves could be a combined ATU / earth tuner. Easy, you can see and hear the results and whats more not massively expensive.
So apart from me does anyone else use an earth tuning system?
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Post by ridgerunnr on Dec 30, 2008 1:44:27 GMT
So you have one Martin? One that you bought or built? And would it make a difference in just a reciever like mine in your opinion? Thanks-73s
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Post by m0wow on Dec 30, 2008 9:52:53 GMT
Hey guys, Interesting point Martin, the radials on a vertical antenna should definately be tuned to resonance. When it comes to a ground plane though, such as earth rods in the garden; it is more important to try to reduce the resistance of the ground wether it is sandy, clay, wet, dry or stony for example. For example my back garden has 2 5ft earth spikes connected to chickenwire laid across the ground as an earth mat. As for receiving, yes a good earth can make a difference by attenuating background noise and hiss.
73's de Den.
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Post by M0ZIF on Jan 1, 2009 19:44:13 GMT
Yep I've been playing with tuning and I've noted that where I am I have no problems on 160-30m but lots of interference on 20-6m that with the tuned plane seems to cut the mustard much more. I will write an article on it over the next couple of weeks
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Post by ridgerunnr on Jan 2, 2009 4:28:07 GMT
Looking forward to that Martin! This is the good stuff! Thanks Den for that answer. By the way Happy New Year you all! 73s
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