SJ 20657-1998 General specification for special police communication systems

GB/T 3380-1982 Ringing and tone for telephone automatic switching network GB/T 12192-1990 Methods of measurement for radio transmitters employing F3E emission used in the mobile services GB/T 12193-1990 Methods of measurement for radio receivers employing F3E emission used in the mobile services GB 191-1990 GB/T 3380-1982 Ringing and tone for telephone automatic switching network GB/T 6282-1986 Interface parameters of the 25 to 1000MHz land mobile telecommunication network connecting to public telecommunication network through subscriber lines GB 9410-1988 GB/T 15491-1995 Performance requirements of electricity and methods of measurement for duplexers used in the mobile services GB/T 15844.1-1995 General specification for radio transceiver employing F3E emission used in the mobile services GB/T 15844.5-1995 GB/T 15874-1995 General specification for trunked mobile communication system GJB 151-1986 GJB 152-1986 GJB 179-1986 GJB 230-1987 GJB 367.1-1987 GJB 367.2-1987 GJB 367.3-1987 GJB 367.5-1987 GJB 368.2-1987 GJB 368.5-1987 GJB 450-1988 GJB 663-1989 SJ 20044-1992 Safety requirements for short wave single sideband communication equipment SJ/T 10413-1993 Total specification for small and medium capacity multi-channel mobile communication system