Satellite communications can be extremely resilient to jamming. The reason being that it's easy to filter out RF from every direction but above with a very simple antenna. Depending on the constellation and the angle of the satellite relative to the antenna it could be close to impossible without an aircraft or something directly in the terminal's line-of-sight.
As someone who has had to manually satellite TV dish, AFAIK, there's always guidelines on the specific angles you need to orient your dish at. Couldn't an adversary place satellites to also broadcast noise in roughly the same direction?
Satellite TV dishes are pointed at satellites that remain in the same position of the sky relative to the satellite. These are in geosynchronous orbit meaning they orbit the earth once every 24 hours. (Which is what makes them appear stationary to Earth stations).
In contrast, the Starlink satellites are zooming around the planet orbit once every 95 minutes[1] or so. At any given time, there are many Starlink satellites "visible" and the antenna tracks them using a technique called "phased array antenna tracking." This is the same way multi-target RADAR works on modern ships and planes.
Anyway, the cool think about Starlink (I just installed mine) is that you put it up where there is a lot of "sky" visible, and then the antenna moves itself to maximize the area of sky that it's antenna can "see". It is very cool and an amazing bit of engineering.
Citation? Some quick googling suggests that if you want to become more jam resistant, you switch to phased arrays.
Which would be what intuitively makes sense to me, though I'm not an expert in phased arrays. If you have more gain straight up, then you must have less gain in other directions.
Afaik, Starlink phased arrays have very high gain (low beamwidth), so they must have proportionally lower gain in other directions, or else it wouldn't add up and you'd have overunity.
