DSO531SR-48.0000M DSO531SVL 12.288MHz DSO531SVL 13.500MHz DSO531SVL 20.048MHz DSO531SVL 3.2768MHz DSO531SVL 3.6864MHz DSO531SVL 40.680MHz DSO531SVL 83.330MHz DSO531SVL10.000MHZ DSO531SVL106.250MHZ