I am not a technical person so bear with me on this description of work needed
I own a company with a small fleet of trucks that deliver concrete. The drivers communicate with the dispatchers at HQ and each other via mobile radios
I am interested in finding someone who can design a single channel recorder to capture the audio from the mobile radio in the trucks and record it into something like a Raspberry Pi computer with a touch screen on top of it that can allow my drivers to playback previous conversations to verify what was said, address locations, time of delivery, etc...
The unit would have to be connected to the trucks DC power and be able to turn on and off with the truck without being damaged ( I am assuming some sort of BBU)
Finally, there would have to be some kind of RF filter somewhere on the unit that could filter out noises that get created by the engine electronics. Also, the trucks are truck, meaning, they would probably get lots of vibration