Was unbelievably easy and no cost at all since we had scrap pieces of coax cable. What I don't like is that it is taped over the area where the charging clip goes. So that will have to be un-taped every time it needs charged. Going to get a piece of Velcro or rubber band to hold it instead of tape. Tried it out in water and it works fine. I have a creek to use it in below the waterworks facility where the water runs shallow. However, since it's going to rain for the next four days, I may have to wait awhile. Don't nobody go and pay good money for an antenna kit; it is just so easy to DIY that a child or old lady can do it, LOL>