The reception is better than expected. I have my Uniden UBC69XLT-2 equipped with it. The supplied antenna of this scanner is for a ton. With the mini-scan antenna then it fits. As to the magnetic base, I can report several speed tests. 100, 120, 140 and 190 km / h. Metal roof, Audi Sportback, 2 ° C outside temperature. The antenna has not added mm. The reception was good. I can only recommend the antenna.