Hi.. The uploaded files are the latest uP firmware for the Tek2710 spectrum analyzer dated 11/5/90. These files are in intel HEX format. Also included are the PAL jedec files for the address decoder for the GPIB/RS232 options CCA. Along with the jedec files are the Intel Hex GPIB and RS232 firmware needed for for the GPIB/RS232 options CCA. Thanks. Jim WB5KYE