HC-49/S-6.144MHZ HC-49/S60.3MHZ18PF HC-49/SD46.811428MHZ HC-49/SM(10MHZ30PPM) HC-49/SM(24MHz) HC-49/SM(4.096MHz) HC-49/SM_10MHZ HC-49/SM_24.576MHZ HC-49/SM_25.14MHZ HC-49/SM10.000000MHZ20PF