Requiring the OPC-478 (U) cable to connect to your receiver, this CS-R5 PC software installs into your PC allowing you to transfer data to and from your PC to your Icom Ic-R5 for cloning and memory programming. A new web site at Icomreceivers.com has just been launched that will allow you to download frequencies staright from the web, port them into this windows based software and then upload them into your Receiver.