Hi all,

I've been away from ham radio for quite some time, and I am looking to
get my ht up and running. I want to make a J-pole.

Although I have found some plans to do so, I was looking more for the
science behind it.

I see that the stub is 1/4 wave and the other side is 1/2 or 3/4.

I forget the formula to find the wavelength. Was it the freq divided
by 468 or 234?


any help would be great.

kb2tfa