Thats because they are high noise units. For about the same money, you can get lower noise Channel Master or Winegard units. The only thing RS has going for it is that its easier to return the unit to a local store than shipping it back.People say not to get radio shack, but mine performs as good or better than the Winegard I have.
Agreed 100%. I have one on the shop and one on the house. The house is made of #10 wire and the one on the shop is made with 3/4" flat aluminium. The one in the picture above is the same #289 design with modified lower legs [flipped up as wings] ,.. I have since straightened those lower legs back to the #289 sketch dimensions.I agree that the stealth hawk in post 289 is the best so far. So much so that I built three of them, two connected to two tvs and one connected to my tuner on the computer.
It would not be advisable to mount any antenna close to anything metalic or electrical. The more free unobstructed space around an antenna, the less will be the chance of having unwanted reflections. That quote that you mentioned refers to avoid having a mast running into or through the air space within the diamond area of the antenna nor adding other elements, directors, narods or reflectors."The SH is very sensitive to any objects being too close to the element" in post 295