A method for interoperable radio communications including the steps of: a) at least one radio user's transmitting at least one transmission on a first radio frequency to a computer having at least one sound card and at least two sound card channels on one or more sound cards, wherein each of the at least two sound card channels is programmed to receive and process transmissions from at least two separate radio frequencies; b) the radio user's posting a transmission as either a sound recording or a transcribed voice or data file to a folder or other record on the computer; and c) at least a second radio user's transmitting and/or receiving, on a second radio frequency via a sound card channel, to or from the same or another folder on the same or a different computer.