I have started working on the Transmitter circuit. You mentioned using a mosfet driver chip. what about a regular mosfet transistor (data sheet below)? The mosfet, i assume, will connect to a Tank circuit before feeding to the transducer?
What about using a VCO attached to an amplifier? I searched for VCO's and found some but they operated in frequencies above 200 kHz. If i went this direction, could i use a PLL and drive it with PWM voltages connected directly to the VCO?
I am considering a 1200 baud rate. I will have a total of 6336 bits to transmit and so considering transmitting at ruffly 6 bits per baud. Would this make sense? Hopefully this baud rate will not result in to much multipath interference