reply to post by strangedays
Directed radio frequency (RF) energy cannot be easily disrupted by adding more RF energy from a "blocker" type device.
You can shield against RF but the shield must be a near perfectly conducting box otherwise it will not be very effective.
If you know the frequency of the RF, in theory, one could make a dielectric phase shifter to either absorb or reflect the RF energy, but will not be
an easy task.
In summary, NO, RF energy is difficult to block.