can satellite dishes be redesigned such that they don't just have a directional peak in sensitivity, but also a controlled suitably low maximum sensitivity in other directions?
or is jamming typically done from drones / airplanes to jam a slanted conical region below them?
when they physically remove dishes, do they discover them typically visually (so they just need to be hidden in a RF transparent box say plastic) or do they already use direction finding on local oscillators?
You could design a receive only satellite dish with side shielding, even up to the point of making it technically equivalent to an ETSI class 4 antenna for licensed microwave systems, but it would look considerably different (like a drum with tall walls) and would cost a great deal more.
in general this is a very cost sensitive market if you go to a big city in pakistan, afghanistan or iran and look at the $100 satellite dishes with LNBs all over the roofs.
That is a good point. I was being overly generous by far on the actual dish cost, and including the cost of cabling and a basic receiver set top box. But building a jam resistant rx only dish would still have significant economic challenges.