Long ago, and not so far away - - -
The military conducts testing of airborne electronics systems, even today. A pilot mistakenly flipped the wrong switch.
The result? The microwave links over a good sized area no longer worked, at least until the error was corrected, and
the links reset.
Another pilot some years later flipped the same switch while flying in a European host country.
The result was a minor international incident. Seems that the Queen's Helipad ILS system was unusable until the switch was
put back in the normal position.
Deliberately Jamming 2.4Ghz or any frequency that is used legally is a big no-no, (Unless you happen to be the government.)