MT680 Tetra Digital Mobile Radio

Frequency Bands	350-400MHz/380-430MHz/410-470MHz/806-870MHz
Dimensions	Machine: 70 x 184 x 201mm; Front Panel: 70 x 184 x 82mm; Remote Machine: 70 x 184 x 177.6mm; Base Station: 174.3 x 230 x 321.3mm
Weight	Machine: 1900g; Front Panel: 395g; Remote Machine: 1655g; Base Station: 6356g
Operating Voltage	Machine & Remote Machine: 10.8V-15.6V (Typical values 13.2V); Base Station: AC:13.2V (10.8V-15.6V); DC:100-240Vac/50-60Hz

Operation Mode

-Trunking Mode Operation (TMO): communications over TETRA network (semiduplex and full duplex mode)

-Direct Mode Operation (DMO): direct communications between terminals without network intervention (semiduplex mode)

Voice Services

-Group Call: Standard Group Call; Priority Group Call; Emergency Group Call; Broadcast Call; Late Entry; Talking Party Identification; DGNA Service; Group Call Scan; Talk Group Management;

-Individual call: Standard Half Duplex Individual Call; Standard Full Duplex Individual Call (TMO); Priority Individual Call; Emergency Individual Call; Calling Identification; Pre-emption Priority Call

-Telephone Call (PSTN/PABX): Full Duplex Telephone Call; DTMF; Calling Identification; Pre-emption Priority Call

Security Services

-Authentication

-Air Interface Encryption TEA 1, TEA 3, TEA 4

-Air Interface Encryption

-E2EE (End-to-End Encryption) Security Services: E2EE Encryption Module; Multiple Algorithm Support

-PIN/PUK Code Access

-Security Class 1, 2, 3

-Ambient Listening

-Discreet Listening

-Stun/Kill

-Configure Information Protection

User Safety

-Emergency Button

-Keypad Lock

-Out of Network Alarm

-Multimode GPS Application

-Low Battery Alarm

-Emergence Call Red Screen

Data/Messaging Services

-Short Data Service (SDS) - Type1, Type2, Type3, Type4, TL Data

-Status Message

-Packet Data Service (PEI)

-One Button-trigger Status Massage

-Long SDS Receiving

-Further Developing Interface Reserved

-At Command (PEI)

User Interface Features

-16 programmable key for quick access to function

-Multi-function Talk Group Selector and Volume Control Knob

-4-way Navigation Keys

-Dedicated Emergency Button

-Call Log: missed/received/dialed lists

-Flexible Dialing (list scroll, direct dial, alphabetic search, last number redial)

-External Palm Microphone

-Adjustable Display Contrast

-11 Languages (English, Simplified Chinese, Korean, Russian, Spanish, German, French, Farsi, Catalan, Malay, Arabic etc.)

-Selectable Profiles

-GPS Location Service: Built-in high sensitivity GPS; Fully integrated single-chip GPS receiver; Full programmable position update triggers; Position information transmission during Emergency Alarm; Time Synchronization and Calibration