HC-49/U_6MHz HC49/U-002M083333S7 HC49/U-002M500000S7 HC49/U-003M571428S7 HC49/U-005M000000S7 HC-49/U03-14MHz HC-49/U03-22.5792MHZ HC-49/U03-24MHz HC-49/U03-28.375000MHZ HC-49/U03-28.63636MHZ