Too true! If insects on Mars were trying to communicate with us on 2.5MHz AM HF frequencies, then we on spread spectrum 2.4GHz WiFi internet would totally miss it, miss it on cell phones, miss it on DishTV (and NFL Network..)
Only some little old lady with an old tube Heathkit would hear anything, and then go back to sleep.
Uummm, Heathkit never made kits that could receive anything near that frequency range. AND little old ladies probably couldn’t find rosin core solder or even a pencil tip iron for assembly. meh.