Of note: A violation of a noise ordinance is in most jurisdictions not considered a disturbance of the peace unless the perpetrator has disregarded an affirmative request that he or she reduce the noise to a reasonable level. However, that would be implied in the air raid siren case.
Anyway, I agree it's not the 4th that's the issue. But, it's still unlawful conduct.
Talking over each other would be the same as running two or ten routers on the same channel, which is not an issue. This approach actively prevents communication.
This can include creating loud noise
Of note: A violation of a noise ordinance is in most jurisdictions not considered a disturbance of the peace unless the perpetrator has disregarded an affirmative request that he or she reduce the noise to a reasonable level. However, that would be implied in the air raid siren case.
Anyway, I agree it's not the 4th that's the issue. But, it's still unlawful conduct.