>>18040194>provide direct measurement of drop over distanceDAILY REMINDER
>take two radios>hand one to a friend>drive to a flat area with no tall obstructions in two cars>choose a no-bounce frequency>drive away from each other until you can no longer connect>mark the locations on a map>switch to a taller roof mount antenna>"oh hai i hear you now">drive away from each other until you can no longer connect>mark the locations on a map>break out an even taller antenna>"oh hai i hear you now">compare to LoS calculations>"it's a globe!!!"flattie copes
>hurr it's inverse squareTry increasing transmit power, it won't work.
>hurr it's atmospheric attenuationTry increasing transmit power, it won't work.
>marconi!Ionosphere bounce
>REEEEE THERE IS NO IONOSPHERE HE PROVED FLAT EARTHYou can tell if a signal is coming straight at you or bouncing off the ionosphere using a directional antenna.
>MUH HUMPBACK WHALE CALLS!Whales are miles above the ocean floor, and sound bounces very easily off ocean thermal layers.
>REEEEEEEEEEMeds