Continuing that analogy, in the case where a sky facing directional antenna is being used: the pilot is crouched under a sewer grate, shining a light at the soles of your feet, as you stare up into the night sky. If you are pumping enough power to overcome a directional antenna, than you are more in the realm of a directed energy weapon - which requires an insane amount of power (see inverse-square law).
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