[chirp_users] Yaesu FT-4X Download Problem

John Higby
Thu Aug 15 16:49:40 PDT 2019

USB-57A which is listed for the FT-4X. Windows 7.  I believe I'm using the latest daily download.


From: chirp_users-bounces at intrepid.danplanet.com <chirp_users-bounces at intrepid.danplanet.com> on behalf of Dan Clemmensen <danclemmensen at gmail.com>
Sent: Thursday, August 15, 2019 4:34 PM
To: Discussion of CHIRP <chirp_users at intrepid.danplanet.com>
Subject: Re: [chirp_users] Yaesu FT-4X Download Problem

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<mailto: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.

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