Jokes aside, I've always been curious how much you could accomplish in this direction by driving a microwave magnetron into a horn antenna using an old pulse forming network off ebay... Hell, even travelling wave tubes are getting affordable these days.
Inverse square law to the rescue!
Jokes aside, I've always been curious how much you could accomplish in this direction by driving a microwave magnetron into a horn antenna using an old pulse forming network off ebay... Hell, even travelling wave tubes are getting affordable these days.