cam-d is a system that is applicable to medium wave and possibly shortwave transmission. since receivers are designed for multiple bands, a receiver that requires a substantially different architecture for cam-d will require special circuitry that will increase its cost. this is similar to hd radio and other digital radio services. since they all require new circuitry, inevitably, the price of manufacture will increase. this price will likely begin to decrease once the technology becomes proven. since all new broadcast radios are moving to full digital formats that decode with nearly identical hardware (xm, sirius, hd radio (in digital mode), digital audio broadcasting, digital radio mondiale) in the long term, the overhead of analog circuitry will cause a cost penalty to implement the technology in future radios.