I was washing the belly of my plane that I noticed a 2" thin crack in my x-ponder antenna (Comant CI-105). The transponder is operating with no issue (have not dropped off radar yet). I was wondering any one has had this issue and if there is a recommended repair for it. I was thinking of lightly sand it and put two or three layer of glass on it from keeping it to grow or break off completely. Would two or three layer of glass block any of the signals?