In this video we go over the two options for connecting the FT891 to the Digirig. The first option is to connect without CAT control. The second option is to connect with CAT control. Below are links to the Digirig, cables and KB9VBR's video on the FT 891 audio settings for digital .
KB9VBR: https://youtu.be/afpvK8UrftU?si=g301v3C9w1V4BssK
Digirig: https://digirig.net/product/digirig-mobile/
USB-A to USB-C cable: https://digirig.net/product/short-usb-a-to-usb-c-cable/
Yaesu 8xx cables: https://digirig.net/product/yaesu-ft-8xx-cords-for-digirig-mobile/