WHAT DOES UG8 LINK ALTERNATIF MEAN?

So I have decided to rebuild it to operate much better. At first I assumed to take the Yaesu MH31 handset that came with the radio aside and put the contents into your Astatic, but as I went along with the planning, I made a decision that wasn't this kind of a good suggestion. Additonally, I've read someplace that this isn't a very good mic?Anythin