How not to jam GSM or GPS signals with jammers?

Question

satellite navigation

All yo
Guys, maybe someone has infa, how not to let the gps or gsm signal be jammed, maybe someone has thoughts)
The bottom line is that if someone wanted to jam your signal - and figs there, the signal passes)

Answer 1

By the way, in the case of GPS, you generally only have a receiver, it does not produce any signal.
And everything is so simple - you throw cables up to three or four satellites and voila, the signal is stable.