Originally Posted by
rleffler
What is radio is com1? Did it ever work properly? It may imply that that serial line to the radio has an open circuit, the efis wasn’t configured properly, or the radio config may not be set properly. I really enjoy this feature, especially now that it works with my gtn650.
You can change the OAT setting yourself. That’s an EFIS configuration item.
I suspect the same for the AOA. There are multiple settings for how that will display.
Having backups as well as written records of your configuration settings will help you through upgrading. Sometimes settings get changed when you upgrade. Although I will admit AFS upgrades are usually good about not changing the configuration. I’m lazy, I just take pictures of all to configuration screens and save them for future reference.