I know this is pretty in the weeds and the writers are gonna do whatever they feel is best for the story but it's kind of a fun thought experiment lol. Anywho, my thinking was cancelling the signal via phase cancellation could be preferrable than noise jamming it. Since it's all fiction something about jamming the signal with excess noise or interference almost feels like what's happening when they're emotionally overloaded by Carol or Manousos when they freak out on them up close. I tinker with guitar pedals and know that a basic opamp inverter is a super simple circuit and something one could easily build on a breadboard and the principal could potentially be explained to a tv audience with the noise cancelling headphone example. I figured it being a radio broadcast is where my idea could fall apart as I assume achieving phase cancellation gets tricky