Bendix/King NAV Radios
Any Bendix/King NAV radio that would require the KN-72 VOR/LOC converter will not work, due to the incompatible output that the KN-72 generates. Both the KN-53 NAV and KX-155 NAV/COMM require this converter to connect to the a conventional NAV head, and hence these radios will not work with the HS34.
Other Bendix/King NAV radios with internal VOR/LOC converters have not been tested by customers yet. This includes models like the KX-165. Due to the probability that a KX-165 behaves much like a KX-155 with a KN-72 connected, it is very possible that this and similar radios will not work either.