Sunday, July 7, 2024

3BMOX antenna overhaul (1)

 This 3 band "7 element" yagi has an important advantage. It has no coils or lineair loading. It is full size with a moxon as the 20m part.

This antenna would do quite good in my tower. However, I find it too big and too heavy (20kg). But I would like to see how things are constructed and do an overhaul because some parts seem to be damaged and/or worn. I started with cleaning everything today since the color of most of the parts were brown and green and that was no paint!

I quickly took this photo after the cleaning. It started to rain so no further progress was made. I found a heavily worn tube which I will replace. Like the previous EA VHF 3 band antenna I rebuilt there are parts made from POM which are getting brittle. Moxon isolators seems to be glasfiber which was not protected by tape, coating or paint, they seem to be usable but I wil certainly wrap them with tape. Hopefully the weather will improve a little this summer...

No comments: