Re:Simple solution to this... (Score 1)

I'm not sure I follow here - how would you activate a jamming device like a landmine, an RF missile is passive, i.e. not emitting anything (other than a radar signature admittedly) to trigger a device and even if there were a way of doing it the missile is unlikely (incase of hellfire not possible) to attack co-ordinates that were in some way spoofed as the grid reference is only a guide to the rough area of the target RF identification is used to find the target itself.

In any case an RF jammer has to be with what you are defending as all it is doing is emitting noise on the frequency in question making the dissemination of intelligence impossible which requires high power output to cover this remotely would use huge amounts of power.

In the case of missiles then the launch platform knows whether the GPS signal is reliable if if not would gain its coords from inertial nav.

This jammer working on CA (course aquisition) GPS signal and not the encrypted P(Y) channel anyway.

Bear in mind that spoofing the CA code is a defence mechanism that can be activated onboard the satelites in the first place!