A.821.2375MHz B.866.2375MHz C.457.5MHz D.457.7MHz
A.888888 B.666666 C.123456 D.111111
A.“XXXX機車語音試驗 B.XXXX機車通話試驗 C.“XXXX機車I端同頻入庫語音試驗,檢測人XXX D.“XXXX機車,檢測人XXX