ID:21096 TX channel "<name>" using the "<name>" protocol cannot be placed in the same quad with TX channels that use different protocols

CAUSE: You tried to place a transmitter channel that uses the CEI or Basic X4 protocol in the same quad with a transmitter channel that does not use the CEI or Basic X4.

ACTION: Modify the location constraints of the TX channels so that the CEI or Basic X4 TX channels are not placed in the same quad with other non-CEI or Basic X4 channels.