I have an extra Kantronics KPC3 with I believe Version 6.0 of the firmware since the manual says version 6.0 April 18, 1995. It is in excellent condition. It is surplus to me as I have another KPC3 running the APRS station here. Comes with manual. $100.00 shipped to you. Please contact me off the list if interested. Duffy www.wb8nut.com