Hi all,
I've found this article from 2017 detailing the upgrade process from FT-991 to FT-991A:
https://www.ad5gg.com/2017/11/23/yae...ed-to-ft-991a/
I've emailed Yaesu but had no reply. Does anyone here know if they are still doing these upgrades?
73
Ian P
M7WMT