Using VarAC with VARA FM Mode on the Yaesu FT-991A via a Single USB Cable. I'm currently using VarAC with VARA FM mode on my Yaesu FT-991A, connecting to the radio with just one USB cable. If you know of a more efficient setup or have any suggestions, please share your insights. Additionally, if you spot any errors or conflicts in this setup, I'd appreciate your input.

Testing with ICOM ID-31Plus handheld, connected to a Digirig Mobile v1.9. Note that the handheld is limited to "Narrow" VARA FM settings. Need to also test using "FM-D" on the FT-991A.
So far, I've successfully managed Chats, CQ CALLS, and Beaconing with both setups. However, I haven't received any broadcasts yet, and I'm unsure if it's an RX or TX problem. I also haven't attempted to send files yet but plan to do so soon.
Kevin JJ1PJI
Why use VOX for PTT?
My setup works with CAT (only one USB cable also).
PPT -> PTT.😅
FM-D works. Will need to document the settings.
Chats, CQ CALLS, Beaconing, Broadcasts, and file transfer are all working great! 😀
Thank you very much!
very informative!