[mschuster91]

Mount that magnetron in front of an ordinary satellite dish and oh boy whatever is at the focal point of it will not have a nice day either. Your average satellite dish has about 38 dBi of gain - an 1 kW magnetron will yield something around 3 MW EIRP if you manage to end up in the RF path.

That is why even around "small" scale radio transmitters such as phone cell towers you absolutely have to keep a safe distance, and even more around large broadcast towers or even radio amateurs doing serious satellite communication.