CAT Commands

From The Unofficial FT-897 Wiki

CAT lets you control the radio from a computer - a better description will be put up sometime. For instant reading see the manual, it explains it and the serial format and parameters required.


Undocumented Commands

Name P1 P2 P3 P4 Opcode Notes
Read EEprom MSB LSB 0x00 0x00 0xBB Returns 2 bytes, the specified address and the 'next' address. 16 bit memory addressing, unused memory returns 1 byte (for me 0xf0).
Write EEprom MSB LSB byte 1 byte 2 0xBC Writes 2 bytes to the specified address and the 'next' address. 16 bit memory addressing.
Get Radio Config 0 0 0 0 0xA7 Returns 9 bytes for the radio config, the byte values are not yet documented
Get Tx Metering 0 0 0 0 0xBD 4 nybbles are returned, in order power, vswr, alc, modulation
Factory Reset 0 0 0 0 0xBE erases alignment data use with caution!

Interesting Memory Locations

Address Name Values
0x0068 VFO 0x80=VFO-A 0x81=VFO-B
0x008D Split 0x00=No split, 0x80=split

My work in progress to map out the memory of the FT-897 is available at 0xdecafbad.com

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