Posted by: GW7AAV | June 2, 2009

Vertical half-wave aerials for 4m

I have a Wouxun handheld for four metres which I use for Summits on the Air activations. While talking to Ros G6GVI on 23cms he pointed me to his design for a vertical half-wave aerial for 4m on the Four Metre Website. I have made one and it works at least as good as the half wave Watson I have up at home. Others have had success with J-Poles and Slim Jim antennas made from ribbon cable, but there seems to be a wide variation in the measurements dependent on the cable. I have made J-poles and Slim Jims for two metres successfully in the past but I had no luck with the one for 70mHz.

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