[chirp_users] Yaesu FT-4X Download Problem

Dan Clemmensen
Thu Aug 15 16:34:22 PDT 2019

What cable are you using? (also, what OS and what CHIRP version?) The FT-4X
and related radios use a half-duplex connection with TxD and RxD on the
same wire. The Yaesu SCU-35 cable works, of course. but if you are using
another cable you may need to modify it. I use a trivial connection via
resistors to the serial port on a Raspberry Pi.

I need to get back into CHIRP programming, so I guess I'll fire up my FT-4X
and play some more.

On Thu, Aug 15, 2019 at 4:11 PM John Higby <KJ7HEL at hotmail.com> wrote:

> New..Yaesu FT-4X...never been programmed, won't download & doesn't offer
> an Upload option. Chirp starts ...then error...failed to communicate with
> radio: Incorrect ACK on serial report.
> ANY help appreciated.
> 73
> John
> kj7hel
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