Can anyone direct me to the howto for the 817? I tried putting my ND in clone mode as the source and clicked on chirp to read from but get a com error. I tried a rate of 38400 and 4800 on the ND with error indications from chirp.

Used a data cable that works for Ham Radio Deluxe and FT-817 Commander. I'll take a pointer to the instructions if that's simpler to post.