A.XK B.XKI C.XKJ D.XKQ
A.ZPW.S B.ZPW.SH C.ZPW.SHP D.ZPW.SHH
A.1700-1,25.7Hz,车载设备锁定接收1700Hz B.2000-1,25.7Hz,车载设备锁定接收2000Hz C.2300-1,25.7Hz,车载设备切换到接收1700/2300Hz D.2600-1,25.7Hz,车载设备切换到接收2000/2600Hz