Review on AntennaMastsRus Antenna Motorhome Pontoon Sailboat by Ryan Mosqueda

Receives radio signal and I think that's the main thing. One of the internal threads was clogged with dirt and the antenna was difficult to screw in at first. Additionally, if you mount it to an aluminum boat, I've found that the small notches on the bottom of the mount don't allow it to touch the boat. I ended up having to wrap duct tape around the spikes to prevent this from happening.