Sorry to hear about the 18mz issue.

futaba did not work with kingtech at all on the telemetry. Barry tried to reach out to them and while all other radio manufactures where quick to reply and help futaba did not reply or to my knowledge
work with kingtech.

wish I knew how to help. I don't fly futaba anymore so my knowledge is limited. Barry also does not fly futaba.

have you reached out to futaba? It seems to work on other systems.