FXTC-HE73PR-50MHz FXTC-HE73PR-51.84 MHZ FXTC-HE73PR-51.84MHZ FXTC-HE73PR-52 MHZ FXTC-HE73PR-52MHz FXTC-HE73PR-54 MHZ FXTC-HE73PR-54MHz FXTC-HE73PR-55 MHZ FXTC-HE73PR-55MHZ FXTC-HE73PR-5MHz