Laird Technologies antenna fits GE MPI, PLS, PCS: Kenwood TK100, TK200, TK210, TK220, TK300, TK310, TK320: Motorola HT440, HT90: Maxon HR, CP500, CP520, 1015: EF Johnson 577, 578: Standard 734, 834, HR146, HX300, HX320, HX400, CU32, CP/CS 5015, 0420: Unid