Greetings to all of you. I am currently working on a project assignment, a radio that can do voice and data communication in VHF. I am already done with the voice but still have no any idea about the data. So, the data that I want to send among the radios is GPS data. I've tried with the rf 433 but then realised that it only uses one fixed frequency.
For my project, I want it to be multiple channel of bandwidth in one radio for the data communication, like handy talkie but the frequencies will be limited and allocated into different channels. Is it possible to do it with arduino? If it's possible, can you give me any ideas on what modules or hardware to use for my project? My knowledge about arduino and RF is not that broad yet so please help me out.
Any help would be appreciated. Thank you very much!