KITCH...
THE BEGINNERS' CHEAPEST EVER 23cms YAGI AERIAL
SIMPLE TO MAKE FOR RECEIVING ATV ON 23cms.
QUICK AND DIRTY.
Dr YAGI WOULD NOT APPROVE!
  
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Yagi aerials
Mr Yagi demonstrating the
Yagi-Una prototype antenna
circa 1926


Slovene ATVAssociation

Here is the pdf for one of the best wideband yagi for the 23-24cms band designed by Roy G8CKN © and reproduced here with his permission. The main improvement over other versions is the improved matching on the driven element.G8CKN 23cms YAGI pdf file

Basic aerial theory and comparisons between various types of yagis etc.