The max takeover was a satellite transmission. Back then spot beams weren’t used, so as a result you could overpower the competing broadcast by just 1 Watt and ‘win’. And we weren’t talking about a thousand watts, more like 30.
Also - simply pointing a broadcast antenna at the LNB wouldn’t do much of anything. Those satellite signals were polarized either horizontally or vertically, and the position of the LNB relative to the dish and the geometry of the dish matters a lot. If you’re off by a tenth of degree on the angle, you’re not hitting the right satellite…assuming you even stayed on the arc to match geosynchronous satellites…which if you just aimed a yagi at a LNB you’re pretty much guaranteed to not have done.
The max takeover was a satellite transmission. Back then spot beams weren’t used, so as a result you could overpower the competing broadcast by just 1 Watt and ‘win’. And we weren’t talking about a thousand watts, more like 30.
Also - simply pointing a broadcast antenna at the LNB wouldn’t do much of anything. Those satellite signals were polarized either horizontally or vertically, and the position of the LNB relative to the dish and the geometry of the dish matters a lot. If you’re off by a tenth of degree on the angle, you’re not hitting the right satellite…assuming you even stayed on the arc to match geosynchronous satellites…which if you just aimed a yagi at a LNB you’re pretty much guaranteed to not have done.