[TowerTalk] Yagi gain question

[Stone, Gary R.]

Hi to all,

 

First, I hope you all have a wonderful Holiday and Merry Christmas.  Thanks
for the help on this reflector this past year.

 

I am now trying to sort out in my head a simple way to get a rough idea
about some gain calculations on a Yagi antenna. 

For example, if a Yagi has a gain of x db or x dbi (whichever) and is
running a certain power then at what power level would you need with a
vertical or dipole to roughly equal the Yagi?  Is there a simple way to get
a ROUGH idea and not a scientific solution?

 

Thanks,  Gary, N5PHT