I need some interface to get a wireless serial port. And it have to reach longer than 600m. The ones i have found only reach up to 500m. I thought of converting the signals to sound and send the via a walkie talike and then convert them back, then it would be possible to have longer. But how do you do that? I havent found any circuits for that.
Exuse me for my bad english i am not so good, hope you understand me
Exuse me for my bad english i am not so good, hope you understand me