FTDX-1 Optima with FreeDV

[Emory Haines]

Wondering how to connect the Yaesu FTX-1 to FreeDV?  Latest version of Hamlib 4.7 has the FTX-1 but can not figure out how to update Hamlib for FreeDV?  I have Hamlib 4.7 on my computer but FreeDV must be using an older version.  Hamlib 4.7 works with other software on same computer?  Thank you  73  Emory  WM3M

[Mooneer Salem]

Hi Emory,

If you're on Windows, you may be able to replace the libhamlib*.dll file in C:\Program Files\FreeDV...\bin with a newer one. Otherwise, using another FTDX-* Yaesu model may work when configuring Hamlib, but I don't have that model of radio to confirm.

Thanks,

-Mooneer K6AQ

On Wed, Sep 3, 2025 at 12:33 PM Emory Haines <wm3...@gmail.com> wrote:

Wondering how to connect the Yaesu FTX-1 to FreeDV?  Latest version of Hamlib 4.7 has the FTX-1 but can not figure out how to update Hamlib for FreeDV?  I have Hamlib 4.7 on my computer but FreeDV must be using an older version.  Hamlib 4.7 works with other software on same computer?  Thank you  73  Emory  WM3M

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[JH0PCF kanda]

This is JH0PCF Kanda.
Regarding connecting the FTX-1 to a computer
I needed to do a demo using a friend's radio, so I contacted Yaesu customer support.
I was told that if you don't have the FTX-1 settings when operating in digital modes like FT8,
use the FT-991 settings as a substitute for CAT control.
Regarding the data rate of the radio and computer,
the data rate is optional, 8 bits, no parity, and the stop bit can be set to 1 or 2
on the radio side, but a stop bit of 2 provides more stable communication.
CAT control only allows PTT control and frequency readback from the radio to the PC; it is not possible to set the frequency from the software.
In the FreeDV GUI, under Tools>Options>Rigcontrol,
Frequency/Mode Control Options
Instead of "Enable frequency and mode changes,"
the setting should be "No frequency or mode changes."
Is my information correct?
You'll also need to update the FTX-1 firmware, so

2025年9月4日木曜日 10:11:48 UTC+9 Mooneer Salem: