How much power in watts or milliwatts does it take to interfere with the TV with an outside antenna when operating HF? How much with cable TV? Lets say that the outside antenna and cable TV is in an urban area. Neighbors house is say 75 feet from the base of the ham tower. Is that with in the leakage spec of say RG-213 on HF freq? Keep The Faith, Jim K9TF/WA9YSD