SEC-83 is a secure multi-service terminal which connects to a V/UHF radio to realize secure radio communication. SEC-83 has different versions such as portable, vehicular, airborne and shipborne one for various applications. The basic functions and specifications of the different versions of SEC-83 series are the same.

Features
l        Service type：Voice, data, fax, still image.
l       Encryption key is automatically distributed by wireless channel.
l       Tamper-proof design, encryption key can be destroyed in an emergency.
l       Automatically detecting voice, data, fax and still image.
l       Provides connectivity between mobile station and PABX or PSTN
l       Self-test during power on, result is displayed by LED.
l        Independent interface module, convenient to be modified to suit for different radio sets.  

Specifications
l       Transmission mode：Half-duplex
l        Voice coding: MBE，CVSD
l        Data transfer rate：16Kbps
l       Encryption : Proprietary algorithm.
l        Synchronization: Continuous synchronization in voice transmission.
l       Data transmission:
l       Interface: RS-232C, RS-422A
l       Data rate: Automatically changes according to the channel condition.
l        Error correction: FEC and ARQ
l       Fax interface: Two wire
l        Environmental:
l        Operation temperature: -10~ +50℃
l       Storage temperature: -50~ +65℃,Humidity: 95±3%，+40℃
l        Power supply AC：220V-15% ~220V+10%，power consumption<10W DC：24V-20% ~24V+20%，currency<300m