Well, you could… I’m certainly not going to stop you. Our amazing HD-Blade antenna outperforms all other antennas in its price range and size, and the praise is just pouring in for our new generation 2 model which now comes in a clear finish, perfect for pasting on windows or painted walls. But can you use it outdoors?
The antenna itself is pretty weatherproof… the parts that actually do the work are laminated behind two pieces of plastic. The electronics that work to translate the antenna signal so it can be used on a regular cable aren’t in a waterproof case, though. It wouldn’t be hard to weatherproof that bottom plastic lump if you really wanted, though.
There’s not a lot of benefit to using the antenna outdoors, though. It won’t stand up by itself so it’s going to flop around a lot if you put it on a mast on your roof. (The Flatwave Air is a better choice for that use.) I suppose if you didn’t have any windows in the direction of the towers then it would make some sense to mount it on the outside of the house to keep the signal from dropping due to your home’s construction. Remember that in most cases roughly half of the signal from the broadcast towers is lost when it passes through your home. That’s why we recommend putting outdoor antennas outside if you can possibly do it, instead of putting them in the attic.
Speaking of which, here’s another question: Is there any benefit to putting the HD-Blade on the outside of a window, instead of the inside? The answer is, it depends. Newer windows with UV protection may also cut down on RF transmissions even though they aren’t supposed to. It might be worth some testing to see if you get any better reception from the antenna when it’s placed on the outside of the window. Most of the time you won’t see any real difference, but if you do, there’s your answer.