The antenna I received is probably counterfeit. Surprised to have lower emission reports with the original antenna of my Baofeng UV82, a friend passed to his antenna analyzer and it appears that the SWR (SWR) is just acceptable 145 Mhz (1: 2.8) and really poor at 435 Mhz (1: 5.0). Intrigued by these results and after consultation forum, it appears that a lot of Nagoya all wearing the same serial number is outstanding. The weak price should have alerted me, in short trash ...