I purchased from Amazon using the link in the article. The packaging and the markings on the antenna look authentic. However, it was in a too large box with a few other items like the extended UV-5r batteries and other heavier items. It was obvious that the contents could move around considerably in the box. The antenna looked undamaged, but maybe something happened to it. I was also thinking that because most of the transmissions I have been picking up are in the UHF range (FRS/GMRS) that maybe this antenna was too long. But the VHF like NOAA stations are much worse with the NA-771 than the stock antenna, so I don’t think that is the issue. I think I will return this one and try ordering another one. Hopefully that deals with the issue. Thanks for the quick response.