WCDMA sensors
you know what, i actually called them up and although they will look into it and try to come up with a recommendation, they did say that these chips pick up all the signals on the band and come up with an RMS measurement...that's no good.
in WCDMA, all signals are mashed up into this 5MHz band and coded differently, so that the base station and the handset use the same code to be able to filter the messages, and understand each other. now, i need this product to just sense when the phone near to it is making or receiving a call.
doesn't this make you think that this chip will just keep showing output just because there's other ppl communicating on that 5MHz lump of band? could this be smth related to sensitivity? so that it can only detect the phone nearby...