While the PS-440 is the ideal control for the HF-1050 system, there are several other controls that can function with and tune the system. The Honeywell RM-855 and Epic MCDU as well as the Collins RTU-4100 and RTU-4200 can be used although certain features and capabilities with the system will be limited.

Please refer to this table for features and functions with the various controls when used in the HF-1050 system.