DSX321G 19.6608MHZ DSX321G 20.000MHZ DSX321G 20.048MHz DSX321G 20M DSX321G 20MHZ DSX321G 22.000MHZ DSX321G 22.1184MHz DSX321G 22.5792HMZ DSX321G 22.5792MHZ DSX321G 24.000MHZ