> That said, they are "easy" to jam in the sense that when you have two radio signals on the same frequency, Not at all. Check out the VLBI technique from radi

> That said, they are "easy" to jam in the sense that when you have two radio signals on the same frequency, Not at all. Check out the VLBI technique from radio astronomy, it's not hard to tell that there are two discrete signals. But that's not really the point: you can see stealth aircraft already with lower frequency radars, just not well enough to shoot them down. It's hard to imagine this passive technique being good enough to shoot them down, either. https://en.wikipedia.org/wiki/Stealth_technology#Low-frequency_radar https://en.wikipedia.org/wiki/Stealth_technology#Low-frequen...