The KWM-380 control card contains a 6802 microcomputer (U2). A microcomputer combines a microprocessor and memory in a single IC package. Unfortunately the original designers of the KWM-380 made no provision for preserving the memory contents on power down. The permanent control program in the ROM is written so that each time the power is turned on the memory is reinitialized to set values. This is why the radio returns to 15 MHz each time it is turned on. Also the lack of battery backup for the memory severely limits the usefulness of one of the radio's best features, the keypad memory. The 6802 contains only 128 bytes of memory, 44 of which are used to store the 11 keypad memory frequencies with the remainder reserved to store other quantities required for the operation of the control program. Our Kiron adapter board adds 2048 bytes of new battery backed memory to supplement the 6802's 128 bytes. New battery and memory technology (see Appendix C) permits extremely long battery lifetime. The Kiron boards also have a new ROM with copyrighted modifications to the original Rockwell control program which are required to support the changed memory configuration. The new memory capacity and the new program permit increasing the memories to 100. And of course all of the memories and the A and B vfos are preserved at all times.