DSX221S12.000MHZ DSX221S13.560MHZ DSX221S16.000MHZ DSX221S19.200MHZ DSX221S20.000MHZ DSX221S24.000MHZ DSX221S25.000MHZ DSX221S26.000MHZ DSX221S27.120MHZ DSX221S30.000MHZ