I bought this antenna for my Grundig YB400PE, and it is great. Without it, the BBC World Service is audible, but filled with static. With the reel antenna out the window and clipped on a tree, it comes in clear and static-free, which is great for SW reception! Also, it's great for traveling, when you can't set up a 50' longwire out the back door. I can hear the BBC, RCI, Radio Moscow, and even Radio Australia from a hotel room (!) It's not a replacement for a massive long wire and grounding system, but for the price and ease of use it can't be beat.