Will a 49MHz transmission work underwater? Answered
I'm building a small device that needs to go to a depth of only a few feet in swimming pool water (I'd say three feet at the most) working on an arduino. I wanted to make it radio controlled and was planning on using a standard 49Mhz RC car circuit connected to the arduino. I don't want to keep the antenna above the water line and was wondering if a 49 MHz would work underwater. Any help would be appreciated. :)
I know higher frequencies like those in Bluetooth don't work underwater.