This is the antenna I have found to be the most effective limited space radiator that I have ever used.
The main requirement is to get it positioned in the clear, away from buildings if possible. Having said that, it is possible to hang a groundplane from the limb of a tree, this also works very well. The diagram below shows the basic design:
IT IS MOST IMPORTANT THAT THE LENGTH OF THE RADIALS ARE EXACTLY THE SAME AS EACH OTHER
The Table below is a good guide to antenna lengths
Construction of the self supporting radiator is usually 3/8 to 3/4 in alum. tubing, the radials of 14swg wire.
The hanging radiator can be of 14swg wire as well as the radials.
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