We're engaged in a remote control project which requires comms at no more than 4.8 kpbs and we're looking for a single-chip transmitter. We've found a receiver in the form of a Micrel MICRF001 which listens at 300-450 MHz or so, and is an antenna-one-end-data-out-the-other device, but I can't find something similar for a transmitter to go with it. Alternatively a single chip transceiver would be OK too. Anyone have any ideas? We need samples within one week and client wants to do production run of 50k pieces later. Please post responses to my email address along with pricing and availability if you're a source for these. Thanks. We're in Australia.