“Eventually, the FCC worked out how the hacker had done it. By placing his or her own dish antenna between the transmitter tower, the hacker could have effectively interrupted the original signal. They wouldn’t even have needed expensive equipment, just good timing and positioning.”

I don’t understand this. Do they mean they put up a dish ON the transmitter tower and then overpowered the original transmitter? That would take seriously expensive equipment as those TV transmitter towers output a serious amount of power, a local station in my area broadcasts at 1000 kilowatts.