Anyone know anything about the RadioShack inline amplifiers? #15000528 It is two pieces with the "amplifier" piece going close to the antenna and the "power injector" close to the TV. The instructions state a couple times to not mount the amplifier piece outside but you want it close to the antenna and not far down the line. My problem is I have to run about 40 feet of coaxial before I can get inside and am afraid that might be too far from the antenna. What is the threat of mounting the amplifier piece outside? It is sealed up pretty good and I could just wrap it in rubber or something to water proof all the way.