RE: TM-14, is it region locked?
All Futaba items sold in North America conform to FCC regulations. We have seen none of them with CE markings, so we'd have to conclude that they are not legal to use in Europe or outside of North America (unless your country will accept U.S. FCC Type Acceptance).
We have heard from others that U.S.-purchased Futaba TM-14 modules will work only in U.S.-purchased transmitters, so the region-coding is installed in them.